{"id":3351,"date":"2025-01-08T17:21:23","date_gmt":"2025-01-08T09:21:23","guid":{"rendered":"https:\/\/fushuling.com\/?p=3351"},"modified":"2025-05-17T22:04:53","modified_gmt":"2025-05-17T14:04:53","slug":"%e9%9d%99%e6%80%81%e5%88%86%e6%9e%90%e5%85%a5%e9%97%a8","status":"publish","type":"post","link":"https:\/\/fushuling.com\/index.php\/2025\/01\/08\/%e9%9d%99%e6%80%81%e5%88%86%e6%9e%90%e5%85%a5%e9%97%a8\/","title":{"rendered":"\u9759\u6001\u5206\u6790\u5165\u95e8"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">\u524d\u8a00<\/h1>\n\n\n\n<p>\u53d7yulate\u5f3a\u70c8\u63a8\u8350\uff0c\u53bbB\u7ad9\u770b\u4e86\u4e00\u4e0b\u76ee\u524d\u56fd\u5185\u5b66\u672f\u754c\u9759\u6001\u5206\u6790\u6700\u524d\u6cbf\u7684\u9759\u6001\u5206\u6790\u8bfe\uff0c\u7531\u5357\u4eac\u5927\u5b66\u674e\u6a3e\u8001\u5e08\u548c\u8c2d\u6dfb\u8001\u5e08\u4e3b\u8bb2\uff0c\u8bb2\u7684\u786e\u5b9e\u633a\u597d\u7684\uff1a<a href=\"https:\/\/www.bilibili.com\/video\/BV1b7411K7P4\/\">\u5357\u4eac\u5927\u5b66\u300a\u8f6f\u4ef6\u5206\u6790\u300b\u8bfe\u7a0b01<\/a>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u5c31\u5199\u4e00\u4e0b\u6211\u4e2a\u4eba\u7684\u7b14\u8bb0\uff0c\u7cfb\u7edf\u7684\u3001\u5168\u9762\u7684\u5165\u95e8\u9759\u6001\u5206\u6790\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u9759\u6001\u5206\u6790\u7684\u57fa\u672c\u6982\u5ff5<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">\u9759\u6001\u5206\u6790<\/h2>\n\n\n\n<p><strong>\u9759\u6001\u5206\u6790\uff08Static Analysis\uff09<\/strong>&nbsp;\u662f\u6307\u5728\u5b9e\u9645\u8fd0\u884c\u7a0b\u5e8f\u4e4b\u524d\uff0c\u901a\u8fc7\u5206\u6790\u9759\u6001\u7a0b\u5e8f\u672c\u8eab\u6765\u63a8\u6d4b\u7a0b\u5e8f\u7684\u884c\u4e3a\uff0c\u5e76\u5224\u65ad\u7a0b\u5e8f\u662f\u5426\u6ee1\u8db3\u67d0\u4e9b\u7279\u5b9a\u7684\u6027\u8d28<\/p>\n\n\n\n<p>\u6211\u4eec\u9700\u8981\u5173\u5fc3\u7684\u4e1c\u897f<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7a0b\u5e8f\u662f\u5426\u4f1a\u4ea7\u751f\u79c1\u6709\u4fe1\u606f\u6cc4\u6f0f\uff08Private Information Leak\uff09\uff0c\u6216\u8005\u8bf4\u662f\u5426\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u6f0f\u6d1e\uff08Access Control Venerability\uff09\uff1b<\/li>\n\n\n\n<li>\u7a0b\u5e8fP\u662f\u5426\u6709\u7a7a\u6307\u9488\u7684\u89e3\u5f15\u7528(Null Pointer Dereference)\u64cd\u4f5c\uff0c\u66f4\u4e00\u822c\u7684\uff0c\u662f\u5426\u4f1a\u53d1\u751f\u4e0d\u53ef\u4fee\u590d\u7684\u8fd0\u884c\u65f6\u9519\u8bef\uff08Runtime Error\uff09\uff1b<\/li>\n\n\n\n<li>\u7a0b\u5e8fP\u4e2d\u7684\u7c7b\u578b\u8f6c\u6362\uff08Type Cast\uff09\u662f\u5426\u90fd\u662f\u5b89\u5168\u7684\uff1b<\/li>\n\n\n\n<li>\u7a0b\u5e8fP\u4e2d\u662f\u5426\u5b58\u5728\u53ef\u80fd\u65e0\u6cd5\u6ee1\u8db3\u7684\u65ad\u8a00\uff08Assersion Error\uff09\uff1b<\/li>\n\n\n\n<li>\u7a0b\u5e8fP\u4e2d\u662f\u5426\u5b58\u5728\u6b7b\u4ee3\u7801\uff08Dead Code, \u5373\u63a7\u5236\u6d41\u5728\u4efb\u4f55\u60c5\u51b5\u4e0b\u90fd\u65e0\u6cd5\u5230\u8fbe\u7684\u4ee3\u7801\uff09\uff1b<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u9759\u6001\u5206\u6790\u7ed3\u679c\u7684\u8bc4\u5b9a\u6807\u51c6<\/h2>\n\n\n\n<p>\u8fd9\u91cc\u6709\u51e0\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u6982\u5ff5<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sound\uff1a\u5373<strong>\u5168\u9762\u7684<\/strong>\u6216\u8005<strong>\u5b8c\u5907\u7684<\/strong>\uff0c\u7b80\u5355\u6765\u8bf4\uff0c\u6ee1\u8db3Sound\u5373\u5141\u8bb8\u9519\u62a5\u4e0d\u5141\u8bb8\u6f0f\u62a5<\/li>\n\n\n\n<li>Truth\uff1a<strong>\u771f\u5b9e\u7684<\/strong>\uff0c\u987e\u540d\u601d\u4e49\uff0c\u5c31\u662f\u4e00\u4e2a\u7a0b\u5e8f\u771f\u6b63\u5b58\u5728\u7684\u6f0f\u6d1e\uff0c\u662f\u6700\u7406\u60f3\u7684\u5206\u6790\u7ed3\u679c<\/li>\n\n\n\n<li>Complete\uff1a<strong>\u5b8c\u6574\u7684<\/strong>\uff0c\u7b80\u5355\u6765\u8bf4\uff0c\u6ee1\u8db3Complete\u5373\u5141\u8bb8\u6f0f\u62a5\u4f46\u4e0d\u5141\u8bb8\u9519\u62a5<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u7528\u4e00\u5f20\u56fe\u6765\u6e05\u6670\u7684\u770b\u51fa\u8fd9\u4e09\u8005\u7684\u5173\u7cfb<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2FQQ%E6%88%AA%E5%9B%BE20250108152748-1.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2FQQ%E6%88%AA%E5%9B%BE20250108152748-1.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" style=\"width:684px;height:auto\"\/><\/div><\/figure>\n\n\n\n<p>\u53ef\u4ee5\u770b\u89c1\uff0cTruth\u662fSound\u7684\u5b50\u96c6\uff0cComplete\u53c8\u662fTruth\u7684\u5b50\u96c6\uff0cSound\u5c5e\u4e8e\u4e00\u79cd<strong>Overapproximate<\/strong>\uff0c\u5373\u8fc7\u62df\u5408\uff0c\u800cComplete\u5c5e\u4e8e\u4e00\u79cd<strong>Underapproximate<\/strong>\uff0c\u5373\u5f31\u62df\u5408\u3002<\/p>\n\n\n\n<p><strong>\u5728\u771f\u5b9e\u7684\u7a0b\u5e8f\u5206\u6790\u4e2d\uff0c\u663e\u7136\u6211\u4eec\u9996\u5148\u9700\u8981\u505a\u5230Sound\uff0c\u5728Sound\u7684\u57fa\u7840\u4e0a\u4e0d\u65ad\u5411Truth\u9760\u62e2<\/strong>\uff0c\u9053\u7406\u5f88\u7b80\u5355\uff0c\u56e0\u4e3a\u5373\u4f7fSound\u91cc\u51fa\u73b0\u4e86\u9519\u62a5\uff0c\u6211\u4eec\u4e5f\u8fd8\u53ef\u4ee5\u901a\u8fc7\u5b89\u5168\u4eba\u5458\u4eba\u5de5\u5206\u6790\u6392\u9664\u6389\u54ea\u4e9b\u9519\u62a5\u7684\u6f0f\u6d1e\uff0c\u800c\u6f0f\u62a5\u5e26\u6765\u7684\u8d1f\u9762\u6548\u679c\u5c31\u4e0d\u662f\u90a3\u4e48\u597d\u5904\u7406\u7684\u4e86<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">BasicBlock(\u57fa\u672c\u5757)<\/h2>\n\n\n\n<p>BasicBlock\uff0c\u4e2d\u6587\u53eb\u57fa\u672c\u5757\uff0c\u5177\u4f53\u5b9a\u4e49\u662f\u4e00\u4e2a\u57fa\u672c\u5757\u4e2d\u53ea\u6709\u4e00\u4e2a\u5165\u53e3\u548c\u4e00\u4e2a\u51fa\u53e3\uff0c\u5165\u53e3\u5c31\u662f\u5176\u4e2d\u7684\u7b2c\u2014\u4e2a\u8bed\u53e5\uff0c\u51fa\u53e3\u5c31\u662f\u5176\u4e2d\u7684\u6700\u540e\u4e00\u4e2a\u8bed\u53e5\u3002\u5bf9\u4e00\u4e2a\u57fa\u672c\u5757\u6765\u8bf4\uff0c\u6267\u884c\u65f6\u53ea\u4ece\u5176\u5165\u53e3\u8fdb\u5165\uff0c\u4ece\u5176\u51fa\u53e3\u9000\u51fa\u3002<\/p>\n\n\n\n<p>\u5728\u5177\u4f53\u7a0b\u5e8f\u4e2d\uff0c\u6211\u4eec\u5212\u5206BasicBlock\u7684\u65b9\u5f0f\u5c31\u662f\u627e\u5230\u4e0d\u540c\u7684leader\uff0c\u5373\u4e0d\u540cBasicBlock\u7684\u5165\u53e3\u70b9\uff0c\u901a\u8fc7\u4e0d\u540c\u7684\u5165\u53e3\u70b9\u5212\u5206\u4e0d\u540c\u7684BasicBlock\uff0c\u5212\u5206leader\u6709\u4e09\u6761\u539f\u5219<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7a0b\u5e8f\u7684\u7b2c\u4e00\u6761\u8bed\u53e5<\/h3>\n\n\n\n<p>\u5373\u6574\u4e2a\u7a0b\u5e8f\u6700\u521d\u7684\u5165\u53e3\uff0c\u663e\u7136\u4ed6\u4e00\u5b9a\u662fleader<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8f6c\u79fb\u8bed\u53e5\u7684\u76ee\u6807\u8bed\u53e5<\/h3>\n\n\n\n<p>\u6bd4\u5982\u4e00\u4e2agoto\u8bed\u53e5\u8df3\u8f6c\u5230\u4e86\u7b2c\u4e09\u53e5\u4ee3\u7801\uff0c\u90a3\u4e48\u8fd9\u4e2a\u7b2c\u4e09\u53e5\u4ee3\u7801\u5c31\u662fleader\uff0c\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u7528\u53cd\u8bc1\u6cd5\u6765\u8bc1\u660e\u4ed6\u4e00\u5b9a\u662fleader\u3002<\/p>\n\n\n\n<p>\u5047\u5982\u7b2c\u4e09\u53e5\u4ee3\u7801\u4e0d\u662fleader\uff0c\u90a3\u4e48\u4e5f\u5c31\u662f\u4ed6\u4e4b\u524d\u7684\u4ee3\u7801\u662fBasicBlock\u7684\u5165\u53e3\uff0c\u6bd4\u5982\u662f\u7b2c\u4e8c\u53e5\uff0c\u90a3\u4e48\u5c31\u51fa\u73b0\u4e86\u77db\u76fe\u3002\u5bf9\u4e8e\u4e00\u4e2aBasicBlock\uff0c\u4ed6\u7684\u5165\u53e3\u5e94\u8be5\u53ea\u6709\u4e00\u53e5\uff0c\u800c\u7531\u4e8egoto\u8bed\u53e5\u7684\u8df3\u8f6c\uff0c\u7b2c\u4e09\u53e5\u4ee3\u7801\u6210\u4e3a\u4e86\u4ecegoto\u8bed\u53e5\u5230\u8fd9\u4e2aBasicBlock\u7684\u5165\u53e3\uff0c\u800c\u7b2c\u4e8c\u53e5\u540c\u6837\u662f\u5165\u53e3\uff0c\u4e0eBasicBlock\u53ea\u80fd\u6709\u4e00\u4e2a\u5165\u53e3\u548c\u4e00\u4e2a\u51fa\u53e3\u7684\u539f\u5219\u77db\u76fe\uff0c\u56e0\u6b64\u7b2c\u4e09\u53e5\u4ee3\u7801\u4e00\u5b9a\u662fleader<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7d27\u8ddf\u5728\u6761\u4ef6\u8f6c\u79fb\u8bed\u53e5\u540e\u9762\u7684\u8bed\u53e5<\/h3>\n\n\n\n<p>\u6bd4\u5982\u7b2c\u4e09\u53e5\u4ee3\u7801\u662f\u4e00\u4e2agoto\u8bed\u53e5\uff0c\u90a3\u4e48\u7b2c\u56db\u53e5\u4ee3\u7801\u5fc5\u7136\u662fleader\uff0c\u8fd9\u91cc\u4e5f\u53ef\u4ee5\u7528\u4e00\u4e2a\u53cd\u8bc1\u6cd5\u6765\u7b80\u5355\u7684\u8bc1\u660e\u7b2c\u56db\u53e5\u4ee3\u7801\u4e00\u5b9a\u662fBasicBlock\u4e00\u5b9a\u662fleader\u3002<\/p>\n\n\n\n<p>\u5047\u8bbe\u7b2c\u56db\u53e5\u4ee3\u7801\u6240\u5728\u7684BasicBlock\u4e2d\u7b2c\u56db\u53e5\u4ee3\u7801\u4e0d\u662fLeader\uff0c\u800c\u7b2c\u4e94\u53e5\u4ee3\u7801\u662f\u8be5BasicBlock\u7684\u51fa\u53e3\uff0c\u7531\u4e8e\u7b2c\u56db\u53e5\u4ee3\u7801\u4e0d\u662fLeader\uff0c\u90a3\u4e48\u7b2c\u4e09\u53e5\u4ee3\u7801\u4e0e\u7b2c\u56db\u53e5\u4ee3\u7801\u5728\u540c\u4e00\u4e2aBasicBlock\u4e2d\uff0c\u8fd9\u91cc\u5c31\u51fa\u73b0\u4e86\u77db\u76fe\u3002\u7531\u4e8e\u7b2c\u4e09\u53e5\u4ee3\u7801\u662f\u4e00\u4e2agoto\u8bed\u53e5\uff0c\u56e0\u6b64\u4ed6\u662f\u8be5BasicBlock\u7684\u51fa\u53e3\uff0c\u800c\u7b2c\u4e94\u53e5\u4ee3\u7801\u4e5f\u662fBasicBlock\u7684\u51fa\u53e3\uff0c\u540c\u4e00\u4e2aBasicBlock\u4e2d\u51fa\u73b0\u4e86\u4e24\u4e2a\u4e0d\u540c\u7684\u51fa\u53e3\uff0c\u4ea7\u751f\u4e86\u77db\u76fe\uff0c\u56e0\u6b64\u7b2c\u56db\u53e5\u4ee3\u7801\u4e00\u5b9a\u662fLeader<\/p>\n\n\n\n<p>BasicBlock\u53ef\u4ee5\u5f88\u6e05\u6670\u7684\u770b\u89c1\u7a0b\u5e8f\u4e2d\u63a7\u5236\u6d41\u7684\u6d41\u52a8\uff0c\u56e0\u4e3a\u7a0b\u5e8f\u63a7\u5236\u6d41\u5728BasicBlock\u4e2d\u53ea\u80fd\u4ece\u4e00\u4e2a\u5165\u53e3\u6d41\u5165\uff0c\u4e00\u4e2a\u51fa\u53e3\u6d41\u51fa\u3002\u8fd9\u91cc\u6211\u4eec\u4e3e\u4e00\u4e2a\u4f8b\u5b50\u6765\u770b\u770b\u5b9e\u9645\u4ee3\u7801\u4e2d\u5e94\u5f53\u5982\u4f55\u5212\u5206BasicBlock\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(1)x=input\n(2)y = x\n(3)z = x * y\n(4)if z &lt; x goto (7)\n(5)p = x \/ y\n(6)q = p + y\n(7)a = q\n(8)b = x + a\n(9)c = 2a - b\n(10)if p == q goto (12)\n(11)goto(3)\n(12)return<\/code><\/pre>\n\n\n\n<p>\u6309\u7167\u7b2c\u4e00\u6761\u539f\u5219\uff0c\u7a0b\u5e8f\u7684\u7b2c\u4e00\u6761\u8bed\u53e5\u5fc5\u987b\u662fleader\uff0c\u6211\u4eec\u53ef\u4ee5\u5f97\u5230leader\uff1a(1)<\/p>\n\n\n\n<p>\u6309\u7167\u7b2c\u4e8c\u6761\u539f\u5219\uff0c\u8f6c\u79fb\u8bed\u53e5\u7684\u76ee\u6807\u8bed\u53e5\u5fc5\u987b\u662fleader\uff0c\u6211\u4eec\u53ef\u4ee5\u5f97\u5230leader\uff1a(3) (7) (12)<\/p>\n\n\n\n<p>\u6309\u7167\u7b2c\u4e09\u6761\u539f\u5219\uff0c\u7d27\u8ddf\u5728\u6761\u4ef6\u8f6c\u79fb\u8bed\u53e5\u540e\u9762\u7684\u8bed\u53e5\u5fc5\u7136\u662fleader\uff0c\u6211\u4eec\u53ef\u4ee5\u5f97\u5230leader\uff1a(5) (11) (12)<\/p>\n\n\n\n<p>\u5bf9\u4e09\u4e2a\u96c6\u5408\u8fdb\u884c\u5408\u5e76\uff0c\u6574\u4e2a\u7a0b\u5e8f\u7684leader\u4fbf\u662f\uff1a(1) (3) (5) (7) (11) (12)<\/p>\n\n\n\n<p>\u901a\u8fc7\u4e0d\u540c\u7684leader\u5212\u5206\u4e0d\u540c\u7684BasicBlock\uff0c\u6211\u4eec\u53ef\u4ee5\u5212\u5206\u51fa\u8be5\u7a0b\u5e8f\u7684BasicBlock\u5206\u522b\u4e3a{<strong>(1)<\/strong> (2)}\uff0c{<strong>(3)<\/strong> (4)}\uff0c{<strong>(5)<\/strong> (6)}\uff0c{<strong>(7)<\/strong> (8) (9) (10)}\uff0c{<strong>(11)<\/strong>}\uff0c{<strong>(12)<\/strong>}<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Control Flow Graph (CFG)(\u63a7\u5236\u6d41\u56fe)<\/h2>\n\n\n\n<p>\u6709\u4e86BasicBlock\u4f5c\u4e3a\u5de5\u5177\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5f88\u6e05\u6670\u7684\u753b\u51fa\u7a0b\u5e8f\u7684Control Flow Graph\uff0c\u5373\u63a7\u5236\u6d41\u56fe\uff0c\u4e0b\u9762\u4ee5CFG\u4f5c\u4e3a\u7b80\u79f0\u3002<\/p>\n\n\n\n<p>\u4ec0\u4e48\u662fCFG\u5462\uff1f\u63a7\u5236\u6d41\u56fe(Control Flow Graph, CFG)\u4e5f\u53eb\u63a7\u5236\u6d41\u7a0b\u56fe\uff0c\u662f\u4e00\u4e2a\u8fc7\u7a0b\u6216\u7a0b\u5e8f\u7684\u62bd\u8c61\u8868\u73b0\uff0c\u662f\u7528\u5728\u7f16\u8bd1\u5668\u4e2d\u7684\u4e00\u4e2a\u62bd\u8c61\u6570\u636e\u7ed3\u6784\uff0c\u7531\u7f16\u8bd1\u5668\u5728\u5185\u90e8\u7ef4\u62a4\uff0c\u4ee3\u8868\u4e86\u4e00\u4e2a\u7a0b\u5e8f\u6267\u884c\u8fc7\u7a0b\u4e2d\u4f1a\u904d\u5386\u5230\u7684\u6240\u6709\u8def\u5f84\u3002\u5b83\u7528\u56fe\u7684\u5f62\u5f0f\u8868\u793a\u4e00\u4e2a\u8fc7\u7a0b\u5185\u6240\u6709\u57fa\u672c\u5757\u6267\u884c\u7684\u53ef\u80fd\u6d41\u5411, \u4e5f\u80fd\u53cd\u6620\u4e00\u4e2a\u8fc7\u7a0b\u7684\u5b9e\u65f6\u6267\u884c\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<p>CFG \u80fd\u53cd\u6620\u51fa\u4e00\u4e2a\u8fc7\u7a0b\u7684\u8bb8\u591a\u4fe1\u606f\uff0c\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u662f\u54ea\u4e00\u4e2a\u8fc7\u7a0b;<\/li>\n\n\n\n<li>\u4e00\u4e2a\u8fc7\u7a0b\u7684\u5165\u53e3(\u7b2c\u4e00\u4e2a\u57fa\u672c\u5757) \u548c\u51fa\u53e3( \u6700\u540e\u4e00\u4e2a\u57fa\u672c\u5757)\uff1b<\/li>\n\n\n\n<li>\u4e00\u4e2a\u57fa\u672c\u5757\u7684\u6240\u6709\u53ef\u80fd\u7684\u4e0b\u4e00\u4e2a\u57fa\u672c\u5757( \u6240\u6709\u7684\u51fa\u53e3)\uff1b<\/li>\n\n\n\n<li>\u4e00\u4e2a\u57fa\u672c\u5757\u7684\u6240\u6709\u53ef\u80fd\u7684\u4e0a\u4e00\u4e2a\u57fa\u672c\u5757( \u6240\u6709\u7684\u5165\u53e3)\uff1b<\/li>\n\n\n\n<li>\u4e00\u4e2a\u57fa\u672c\u5757\u6240\u5bf9\u5e94\u7684\u8bed\u53e5\u8868\u3002<\/li>\n<\/ul>\n\n\n\n<p>CFG\u7684\u8282\u70b9\u662fBasicBlock\uff0c\u53ea\u6709\u4e24\u79cd\u60c5\u51b5\u4e0b\u4ece\u5757A\u5230\u5757B\u5b58\u5728\u8fb9<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4eceA\u7684\u672b\u5c3e\u5230B\u7684\u5f00\u5934\u6709\u4e00\u4e2a\u6709\u6761\u4ef6\u6216\u65e0\u6761\u4ef6\u7684\u8df3\u8f6c<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2FQQ%E6%88%AA%E5%9B%BE20250108161145-2.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2FQQ%E6%88%AA%E5%9B%BE20250108161145-2.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" style=\"width:648px;height:auto\"\/><\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><br>B\u7acb\u5373\u6309\u7167\u539f\u59cb\u6307\u4ee4\u987a\u5e8f\u8ddf\u968fA\u4e14A\u4e0d\u4f1a\u4ee5\u65e0\u6761\u4ef6\u8df3\u8f6c\u7ed3\u675f<\/h3>\n\n\n\n<p>\u56e0\u6b64\u8fd9\u79cdA\u4ee5\u8df3\u8f6c\u7ed3\u5c3e\u7684\u60c5\u51b5\u4e0b\uff0cA\u4e0eB\u4e4b\u95f4\u4e0d\u5b58\u5728\u8fb9<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2FQQ%E6%88%AA%E5%9B%BE20250108161403-3.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2FQQ%E6%88%AA%E5%9B%BE20250108161403-3.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/figure>\n\n\n\n<p>\u82e5A\u4e0d\u4ee5\u8df3\u8f6c\u7ed3\u5c3e\uff0c\u90a3\u4e48\u4e8c\u8005\u95f4\u5b58\u5728\u8fb9<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2FQQ%E6%88%AA%E5%9B%BE20250108161518-4.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2FQQ%E6%88%AA%E5%9B%BE20250108161518-4.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/figure>\n\n\n\n<p>\u5728\u65e5\u5e38\u7684\u5206\u6790\u4e2d\uff0c\u6211\u4eec\u4f1a\u7ecf\u5e38\u628a\u8df3\u8f6c\u5230\u6307\u4ee4\u6807\u7b7e\u66ff\u6362\u4e3a\u8df3\u8f6c\u5230\u57fa\u672c\u5757\uff0c\u8fd9\u6837\u5c31\u7b80\u5316\u4e86\u6211\u4eec\u5206\u6790\u7684\u96be\u5ea6<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2FQQ%E6%88%AA%E5%9B%BE20250108161641-5.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2FQQ%E6%88%AA%E5%9B%BE20250108161641-5.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/figure>\n\n\n\n<p>\u5bf9\u4e8e\u6211\u4eec\u6700\u521d\u7ed9\u51fa\u7684\u4ee3\u7801\u4f8b\u5b50\uff0c\u753b\u51fa\u6765\u7684CFG\u5c31\u662f<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2FQQ%E6%88%AA%E5%9B%BE20250108161822-6.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2FQQ%E6%88%AA%E5%9B%BE20250108161822-6.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" style=\"width:294px;height:auto\"\/><\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u7f16\u8bd1\u5668\u548c\u9759\u6001\u5206\u6790\u5668<\/h2>\n\n\n\n<p>\u8fd9\u91cc\u53ef\u80fd\u6709\u7684\u5e08\u5085\u4f1a\u6bd4\u8f83\u7591\u60d1\uff0c\u4e0a\u9762\u6211\u4eec\u5206\u6790\u7684\u4ee3\u7801\u90fd\u975e\u5e38\u7684\u89c4\u6574\uff0c\u56e0\u6b64\u65e0\u8bba\u662f\u5212\u5206BasicBlock\u8fd8\u662f\u753bCFG\u90fd\u76f8\u5bf9\u6bd4\u8f83\u5bb9\u6613\uff0c\u5bf9\u4e8e\u5b9e\u9645\u4e2d\u7684\u4ee3\u7801\uff0c\u53ef\u80fd\u4f1a\u975e\u5e38\u590d\u6742\u7e41\u7410\uff0c\u5e76\u4e14\u4e00\u53e5\u4ee3\u7801\u91cc\u53ef\u80fd\u8ddf\u7740\u8bb8\u591a\u5947\u602a\u7684\u64cd\u4f5c\u548c\u5b9a\u4e49\uff0c\u6309\u7167\u4e0a\u9762\u7684\u65b9\u6cd5\u5728\u5b9e\u9645\u7684\u4ee3\u7801\u4e2d\u5212\u5206\u51fa\u6765BasicBlock\u5417\uff1f\u8fd9\u91cc\u518d\u6765\u8865\u5145\u4e00\u70b9\u4e0e\u7f16\u8bd1\u76f8\u5173\u7684\u77e5\u8bc6\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u7f16\u5199\u7684\u6e90\u6587\u4ef6\u672c\u8d28\u4e0a\u662f\u4e00\u4e2aASCII\u7801\u5b57\u7b26\u4e32\u6587\u4ef6\uff0c\u79bb\u53d8\u6210\u771f\u6b63\u7684\u7a0b\u5e8f\u4ea4\u7531CPU\u5904\u7406\u8fd8\u6709\u975e\u5e38\u9065\u8fdc\u7684\u8ddd\u79bb\u3002\u5bf9\u4e8e\u9759\u6001\u7c7b\u578b\u8bed\u8a00\uff0c\u5176\u6e90\u4ee3\u7801\u5411\u673a\u5668\u7801\u8f6c\u5316\u7684\u8fc7\u7a0b\u5927\u81f4\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2Fcompiler.568f088c-7.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2Fcompiler.568f088c-7.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" style=\"width:513px;height:auto\"\/><\/div><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Scanner<\/strong>\uff1a&nbsp;\u626b\u63cf\u6e90\u4ee3\u7801\uff0c\u8fdb\u884c\u8bcd\u6cd5\u5206\u6790\uff08Lexical Analysis\uff09,\u8bcd\u6cd5\u5206\u6790\u4f1a\u7528\u5230\u6b63\u5219\u8868\u8fbe\u5f0f\uff08Regular Expression\uff09\uff0c\u8bcd\u6cd5\u5206\u6790\u540e\u7684\u7ed3\u679c\u4e3a\u4e00\u4e2a\u6807\u8bb0\uff08Token\uff09\u4e32\u3002<\/li>\n\n\n\n<li><strong>Parser\uff1a<\/strong>&nbsp;\u904d\u5386\u6807\u8bb0\u4e32\uff0c\u8fdb\u884c\u8bed\u6cd5\u5206\u6790\uff08Syntax Analysis\uff09\uff0c\u8fd9\u91cc\u7684\u8bed\u6cd5\u5206\u6790\u5206\u6790\u7684\u662f\u4e0a\u4e0b\u6587\u65e0\u5173\u7684\u8bed\u6cd5\uff08Context Free Grammer\uff09\uff0c\u89e3\u6790\u5668\u7684\u5185\u90e8\u5e94\u8be5\u662f\u5b9e\u73b0\u4e86\u4e00\u4e2a\u6709\u9650\u72b6\u6001\u673a\uff0c\u7528\u4e8e\u8bc6\u522b\u548c\u5206\u6790\u6bcf\u4e2a\u8bed\u6cd5\u5757\u683c\u5f0f\u7684\u6b63\u786e\u6027\uff0c\u8bed\u6cd5\u5206\u6790\u7684\u7ed3\u679c\u4e3a\u4e00\u68f5\u62bd\u8c61\u8bed\u6cd5\u6811\uff08Abstract Syntax Tree, AST\uff09\u3002<\/li>\n\n\n\n<li><strong>Type Checker<\/strong>\uff1a&nbsp;\u4f1a\u904d\u5386\u62bd\u8c61\u8bed\u6cd5\u6811\uff0c\u8fdb\u884c\u8bed\u4e49\u5206\u6790\uff08Semantic Analysis\uff09\uff0c\u4e0d\u8fc7\u7f16\u8bd1\u5668\u7684\u8bed\u610f\u5206\u6790\u662f\u7b80\u5355\u7684\uff0c\u4e3b\u8981\u662f\u5206\u6790\u5c5e\u6027\u8bed\u6cd5\uff08Attribute Grammer\uff09\uff0c\u6bd4\u5982\u8bf4\u53d8\u91cf\u7c7b\u578b\uff0c\u5e76\u9002\u5f53\u8c03\u6574\u4e00\u4e0b\u8bed\u6cd5\u6811\u3002\u8bed\u4e49\u5206\u6790\u7684\u7ed3\u679c\u6211\u4eec\u79f0\u4e4b\u4e3a\u88c5\u9970\u8fc7\u7684\u62bd\u8c61\u8bed\u6cd5\u6811\uff08Decorated AST\uff09\u3002<\/li>\n\n\n\n<li><strong>Translator\uff1a<\/strong>&nbsp;\u4f1a\u5c06\u62bd\u8c61\u8bed\u6cd5\u6811\u7ffb\u8bd1\u6210\u4e2d\u95f4\u8868\u793a\uff08Intermediate Representation, IR\uff09\uff0cIR \u7684\u51fa\u73b0\u89e3\u8026\u4e86\u7f16\u8bd1\u5668\u7684\u673a\u5668\u76f8\u5173\uff08Machine Dependent\uff09\u90e8\u5206\u548c\u673a\u5668\u65e0\u5173\uff08Machine Independent\uff09\u90e8\u5206\uff0c\u4e0a\u8ff0\u51e0\u4e2a\u5c42\u6b21\u5728\u4e0d\u540c\u67b6\u6784\u7684\u673a\u5668\u4e0a\u9762\u662f\u53ef\u4ee5\u51e0\u4e4e\u4e0d\u52a0\u6539\u52a8\u5730\u590d\u7528\u7684\u3002<\/li>\n\n\n\n<li><strong>Code Generator<\/strong>\uff1a&nbsp;\u4f1a\u5c06 IR \u8f6c\u5316\u6210\u7269\u7406 CPU \u80fd\u591f\u76f4\u63a5\u6267\u884c\u7684\u6bd4\u7279\u5e8f\u5217\uff0c\u4e5f\u5c31\u662f\u673a\u5668\u4ee3\u7801<\/li>\n<\/ul>\n\n\n\n<p>\u800c\u6211\u4eec\u7684\u9759\u6001\u5206\u6790\u53d1\u751f\u5728IR\u8fd9\u4e2a\u8fc7\u7a0b\uff0c\u4e5f\u5c31\u662f\u5c06\u62bd\u8c61\u8bed\u6cd5\u6811\u7ffb\u8bd1\u6210\u4e2d\u95f4\u8868\u793a\u7684\u8fc7\u7a0b<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">AST vs IR<\/h3>\n\n\n\n<p>\u5bf9\u4e8e\u4e0b\u9762\u8fd9\u4e2a\u7b80\u5355\u7684\u4ee3\u7801<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>do i = i + 1; while (a&#91;i] &lt; v);<\/code><\/pre>\n\n\n\n<p>AST\u548cIR\u7684\u7ed3\u679c\u5206\u522b\u662f<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2Fast-ir.18fa90f8-8.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2Fast-ir.18fa90f8-8.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/figure>\n\n\n\n<p>\u8fd9\u91cc\u5176\u5b9e\u53ef\u4ee5\u5f88\u76f4\u89c2\u7684\u611f\u53d7\u51fa\u6765\uff0c\u62bd\u8c61\u8bed\u6cd5\u6811\uff08AST\uff09\u662f\u6e90\u4ee3\u7801\u7ed3\u6784\u7684\u4e00\u79cd\u62bd\u8c61\u8868\u793a\uff0c\u4ee5\u6811\u72b6\u7684\u5f62\u5f0f\u8868\u73b0\u7f16\u7a0b\u8bed\u8a00\u7684\u8bed\u6cd5\u7ed3\u6784\uff0c\u76f8\u5bf9\u800c\u8a00\u5c42\u6b21\u8f83\u9ad8\uff0c\u548c\u8bed\u6cd5\u7ed3\u6784\u66f4\u63a5\u8fd1\uff0c\u5e76\u4e14\u4f9d\u8d56\u4e8e\u5177\u4f53\u7684\u8bed\u8a00\u7c7b\uff0c\u7f3a\u5c11\u548c\u7a0b\u5e8f\u63a7\u5236\u6d41\u76f8\u5173\u7684\u4fe1\u606f<\/p>\n\n\n\n<p>\u800cIR\u4e0e\u673a\u5668\u4ee3\u7801\u63a5\u8fd1\uff0c\u901a\u5e38\u4e0e\u5177\u4f53\u7684\u8bed\u8a00\u65e0\u5173\uff0c\u7b80\u5355\u901a\u7528\uff0c\u5305\u542b\u7a0b\u5e8f\u7684\u63a7\u5236\u6d41\u4fe1\u606f\uff0c\u4e5f\u662f\u6211\u4eec\u505a\u9759\u6001\u5206\u6790\u7684\u57fa\u7840\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e09\u5730\u5740\u7801<\/h3>\n\n\n\n<p>\u6211\u4eec\u901a\u5e38\u4f7f\u75283\u5730\u5740\u7801(3 Address Form\uff0c\u7f29\u5199\u4e3aTAC \u6216 3AC)\u5f62\u5f0f\u7684IR\uff0c\u4e09\u5730\u5740\u7801\u53eb\u4e09\u5730\u5740\u7801\u4e0d\u662f\u56e0\u4e3a\u4ed6\u771f\u7684\u6709\u4e09\u4e2a\u5730\u5740\uff0c\u800c\u662f\u56e0\u4e3a\u6bcf\u4e2a\u4e09\u5730\u5740\u7801\u6307\u4ee4\uff0c\u90fd\u53ef\u4ee5\u88ab\u5206\u89e3\u4e3a\u56db\u4e2a\u5143\u7ec4\uff084-tuple\uff09\uff1a\uff08\u8fd0\u7b97\u7b26\uff0c\u8fd0\u7b97\u5bf9\u8c611\uff0c\u8fd0\u7b97\u5bf9\u8c612\uff0c\u7ed3\u679c\uff09\u3002\u56e0\u4e3a\u6bcf\u4e2a\u9648\u8ff0\u90fd\u5305\u542b\u4e86\u4e09\u4e2a\u53d8\u91cf\uff0c\u6240\u4ee5\u5b83\u88ab\u79f0\u4e3a\u4e09\u5730\u5740\u7801\u3002<\/p>\n\n\n\n<p>\u7ed9\u4e2a\u5177\u4f53\u7684\u4f8b\u5b50\uff0c\u6bd4\u5982\u4ee3\u7801<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a+b+3<\/code><\/pre>\n\n\n\n<p>\u8f6c\u5316\u6210\u4e09\u5730\u5740\u7801\u5c31\u662f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>t1 = a + b\nt2 = t1 + 3<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2da, b\u662f\u539f\u59cb\u53d8\u91cf\uff0c3\u662f\u5e38\u6570\uff0ct1\u548ct2\u662f\u7f16\u8bd1\u8fc7\u7a0b\u4e2d\u751f\u6210\u7684\u4e34\u65f6\u53d8\u91cf<\/p>\n\n\n\n<p>\u5e38\u89c1\u7684\u7684\u4e09\u5730\u5740\u7801\u5f62\u5f0f\u6709\uff0c\u8fd9\u91cc\u7684x y z\u5373\u4e09\u4e2a\u5730\u5740<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = y bop z \/\/bop\uff1a\u4e8c\u8fdb\u5236\u7b97\u672f\u6216\u903b\u8f91\u8fd0\u7b97\nx = uop y \/\/uop\uff1a\u4e00\u5143\u8fd0\u7b97\uff08\u51cf\u53f7\u3001\u5426\u5b9a\u3001\u5f3a\u5236\u8f6c\u6362\uff09\nx = y\ngoto L \/\/L\uff1a \u8868\u793a\u7a0b\u5e8f\u4f4d\u7f6e\u7684\u6807\u7b7e  goto L\u5c31\u662f\u4e00\u79cd\u65e0\u6761\u4ef6\u8df3\u8f6c\nif x goto L \/\/ if ... \u6ee1\u8db3\u6761\u4ef6\u540e\u518dxxx\u5c5e\u4e8e\u4e00\u79cd\u6761\u4ef6\u8df3\u8f6c\nif x rop y goto L \/\/rop\uff1a\u5173\u7cfb\u8fd0\u7b97\u7b26\uff08&gt;\u3001&lt;\u3001==\u3001&gt;=\u3001&lt;=\u7b49\uff09<\/code><\/pre>\n\n\n\n<p>\u6709\u4e86\u8fd9\u91cc\u7684\u57fa\u7840\u77e5\u8bc6\uff0c\u518d\u770b\u4e0a\u9762\u7684BasicBlock\u548cCFG\u5c31\u4f1a\u604d\u7136\u5927\u609f\u4e86\uff0c\u4e3a\u4ec0\u4e48\u6211\u4eec\u4e4b\u524d\u5206\u6790\u7684\u4ee3\u7801\u90fd\u90a3\u4e48\u89c4\u6574\uff0c\u56e0\u4e3a3AC\u4e0b\u7684\u4ee3\u7801\u672c\u6765\u5c31\u662f\u8fd9\u4e48\u89c4\u6574\u7684\uff0c\u901a\u8fc73AC\u518d\u5206\u6790\u590d\u6742\u7a0b\u5e8f\uff0c\u5c31\u4f1a\u5927\u5927\u51cf\u8f7b\u6211\u4eec\u8fdb\u884c\u7a0b\u5e8f\u5206\u6790\u7684\u96be\u5ea6<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u9759\u6001\u5206\u6790\u7528\u4e8e\u5206\u6790\u5b89\u5168\u95ee\u9898<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">\u4fe1\u606f\u6d41\u5b89\u5168<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4fe1\u606f\u6d41\u5b89\u5168 vs \u8bbf\u95ee\u63a7\u5236<\/h3>\n\n\n\n<p><strong>\u8bbf\u95ee\u63a7\u5236<\/strong>(Access control)\uff0c\u662f\u4e00\u79cd\u4fdd\u62a4\u654f\u611f\u6570\u636e\u7684\u6807\u51c6\u65b9\u6cd5\uff0c\u4e3b\u8981\u7528\u4e8e\u68c0\u67e5\u7a0b\u5e8f\u662f\u5426\u6709\u6743\u8bbf\u95ee\u67d0\u4e9b\u4fe1\u606f\uff0c<strong>\u5173\u6ce8\u5982\u4f55\u8bbf\u95ee\u4fe1\u606f<\/strong><\/p>\n\n\n\n<p><strong>\u4fe1\u606f\u6d41\u5b89\u5168<\/strong>(Information flow security)\uff0c\u662f\u4e00\u79cd\u7aef\u5230\u7aef\u7684\u65b9\u6cd5\uff0c\u8ddf\u8e2a\u4fe1\u606f\u5982\u4f55\u6d41\u7ecf\u7a0b\u5e8f\uff0c\u4ee5\u786e\u4fdd\u7a0b\u5e8f\u5b89\u5168\u5730\u5904\u7406\u4fe1\u606f\uff0c<strong>\u5173\u6ce8\u4fe1\u606f\u5982\u4f55\u4f20\u64ad<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ec0\u4e48\u662f\u4fe1\u606f\u6d41<\/h3>\n\n\n\n<p>\u5982\u679c\u53d8\u91cfx\u4e2d\u7684\u4fe1\u606f\u88ab\u8f6c\u79fb\u5230\u53d8\u91cfy\u4e2d\uff0c\u90a3\u4e48\u5c31\u6709\u4fe1\u606f\u6d41x\u2192y<\/p>\n\n\n\n<p>\u6bd4\u5982\u73b0\u5728\u6709\u4e00\u4e2a\u4ee3\u7801<code>y=x<\/code>\uff0c\u6216\u8005\u4e00\u4e2a\u957f\u4e00\u70b9\u7684\u4ee3\u7801<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a = x;\nb.f = a;\ny = b.f;<\/code><\/pre>\n\n\n\n<p>\u8fd9\u65f6\uff0cx\u4e2d\u7684\u4fe1\u606f\u5c31\u6d41\u5411\u4e86y\uff0c\u5c31\u6709\u4fe1\u606f\u6d41x-&gt;y<\/p>\n\n\n\n<p>\u8fd9\u91cc\u9700\u8981\u533a\u5206data flow\uff0c\u4e5f\u5c31\u662f\u6570\u636e\u6d41\u8fd9\u4e2a\u6982\u5ff5\u3002\u4e8b\u5b9e\u4e0a\u4e8c\u8005\u5e76\u4e0d\u80fd\u5b8c\u5168\u753b\u4e0a\u7b49\u53f7\uff0c\u51fa\u73b0\u4fe1\u606f\u6d41x-&gt;y\uff0c\u5e76\u4e0d\u4e00\u5b9a\u662f\u56e0\u4e3a\u6570\u636e\u7684\u76f4\u63a5\u6d41\u52a8\u5bfc\u81f4\u7684\u3002\u5b66\u5b89\u5168\u7684\u5e08\u5085\u4eec\uff0c\u5e94\u8be5\u77e5\u9053\u6d4b\u4fe1\u9053\u8fd9\u4e2a\u6982\u5ff5\uff0c\u5bf9\u4e8e\u76ee\u6807x\uff0c\u5373\u4f7fx\u7684\u6570\u636e\u5e76\u6ca1\u6709\u76f4\u63a5\u6d41\u5411y\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e9b\u4fa7\u9762\u7684\u4fe1\u606f\u83b7\u53d6x\u7684\u53d6\u503c\u4fe1\u606f\u3002\u6bd4\u5982\u4e0b\u9762\u8fd9\u4e2a\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x=int(input())\ny=\"hello world\"\nif(x&lt;1) printf(y);\nelse if(1==x) printf(y,\"123\");\nelse printf(y,\"456\") <\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u867d\u7136x\u4e0ey\u4e4b\u95f4\u5e76\u4e0d\u5b58\u5728\u76f4\u63a5\u7684\u6570\u636e\u6d41\u52a8\uff0c\u4f46\u6211\u4eec\u4ecd\u7136\u53ef\u4ee5\u901a\u8fc7\u7a0b\u5e8f\u6700\u540e\u7684\u8f93\u51fa\u5224\u65ad\u51fa\u6765x\u7684\u53d6\u503c\u8303\u56f4\uff0c\u8fd9\u65f6\u6211\u4eec\u4e5f\u8ba4\u4e3ax\u7684\u4fe1\u606f\u6d41\u5411\u4e86y<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ec0\u4e48\u662f\u4fe1\u606f\u6d41\u5b89\u5168<\/h3>\n\n\n\n<p><strong>\u4fe1\u606f\u6d41\u5b89\u5168<\/strong>(data flow security)\u5c06\u4fe1\u606f\u6d41\u4e0e\u5b89\u5168\u8fde\u63a5\u8d77\u6765\uff0c\u5c06\u7a0b\u5e8f\u53d8\u91cf\u5206\u4e3a\u4e0d\u540c\u7684\u5b89\u5168\u7ea7\u522b\uff0c\u6307\u5b9a\u8fd9\u4e9b\u7ea7\u522b\u4e4b\u95f4\u5141\u8bb8\u7684\u6d41\u52a8\uff0c\u5373\u4fe1\u606f\u6d41\u7b56\u7565<\/p>\n\n\n\n<p>\u6700\u57fa\u672c\u7684\u6a21\u578b\u662f\u4e24\u7ea7\u7b56\u7565\uff0c\u5373\u4e00\u4e2a\u53d8\u91cf\u88ab\u5f52\u7c7b\u4e3a\u4e24\u4e2a\u5b89\u5168\u7ea7\u522b\u4e4b\u4e00\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>H \u7ea7\uff0c\u610f\u601d\u662f\u9ad8\u5b89\u5168\u7b49\u7ea7\uff08High Security\uff09\uff0c\u8868\u793a\u79d8\u5bc6\u4fe1\u606f\uff1b<\/li>\n\n\n\n<li>L \u7ea7\uff0c\u610f\u601d\u662f\u4f4e\u5b89\u5168\u7b49\u7ea7\uff08Low Security\uff09\uff0c\u8868\u793a\u516c\u5f00\u53ef\u89c1\u7684\u4fe1\u606f\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6bd4\u5982\u4e0b\u9762\u7684\u4ee3\u7801<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>h=getPassword(); \/\/h\u662f\u9ad8\u5b89\u5168\u7b49\u7ea7\nbroadcast(l);  \/\/ l\u662f\u4f4e\u5b89\u5168\u7b49\u7ea7<\/code><\/pre>\n\n\n\n<p>h\u7531\u4e00\u4e2a\u83b7\u53d6\u5bc6\u7801\u7684\u51fd\u6570\u83b7\u5f97\uff0c\u5c5e\u4e8e\u4fdd\u5bc6\u4fe1\u606f\uff0c\u800cl\u76f4\u63a5broadcast\uff0c\u4e5f\u5c31\u662f\u5e7f\u64ad\u4e86\u51fa\u6765\uff0c\u5c5e\u4e8e\u516c\u4f17\u53ef\u89c1\u7684\u4fe1\u606f\uff0c\u81ea\u7136\u5c5e\u4e8e\u4f4e\u5b89\u5168\u7b49\u7ea7\u7684\u4fe1\u606f<\/p>\n\n\n\n<p>\u5b89\u5168\u7b49\u7ea7\u53ef\u4ee5\u5efa\u6a21\u6210\u4e00\u4e2a<strong>\u683c(Lattice)<\/strong>\uff0c\u201c\u683c\u201d\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u504f\u5e8f\u96c6\u3002\u5728\u8bb8\u591a\u6570\u5b66\u5bf9\u8c61\u4e2d\uff0c\u82e5\u6240\u8003\u8651\u7684\u5143\u7d20\u4e4b\u95f4\u5177\u6709\u67d0\u79cd\u987a\u5e8f\uff0c\u6211\u4eec\u5c06\u8fd9\u4e2a\u504f\u5e8f\u96c6\u79f0\u4e4b\u4e3a\u683c\u3002\u7531\u4e8e\u5b89\u5168\u7b49\u7ea7\u4e4b\u95f4\u5b58\u5728\u504f\u5e8f\u5173\u7cfb\u4e14\u4e24\u4e24\u4e4b\u95f4\u5b58\u5728\u4e0a\u4e0b\u786e\u754c\uff1a<strong>&nbsp;L\u2264H<\/strong>\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u7528\u683c\u7684\u6a21\u578b\u6765\u62bd\u8c61\u5b89\u5168\u7b49\u7ea7\u3002\u5f53\u7136\uff0c\u9664\u4e86\u6700\u7b80\u5355\u7684High\u548cLow\u7684\u4e8c\u5143\u5212\u5206\uff0c\u5b9e\u9645\u5e94\u7528\u573a\u666f\u4e2d\uff0c\u5b89\u5168\u7b49\u7ea7\u53ef\u4ee5\u5212\u5206\u7684\u975e\u5e38\u590d\u6742<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2Fsecurity-levels.93aabc76-1.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2Fsecurity-levels.93aabc76-1.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/figure>\n\n\n\n<p>\u5de6\u8fb9\u5c31\u662f\u6211\u4eec\u56fd\u5185\u7684\u4fe1\u606f\u7684\u94fe\u5f0f\u5b89\u5168\u7b49\u7ea7\u5212\u5206\uff0c\u6bd4\u5982\u9ad8\u8003\u8bd5\u5377\u662f\u5168\u56fd\u6027\u7684\u8bd5\u5377\uff0c\u5c5e\u4e8e\u7edd\u5bc6\u7ea7\u522b\uff0c\u662f\u6700\u9ad8\u673a\u5bc6\uff0c\u6cc4\u9732\u9ad8\u8003\u8bd5\u5377\u4e00\u822c\u90fd\u5f97\u5224\u4e2a\u4e94\u516d\u5e74\uff0c\u76f8\u5bf9\u800c\u8a00\u4e2d\u8003\u8bd5\u5377\u7684\u7b49\u7ea7\u5c31\u8981\u4f4e\u4e00\u4e9b\uff0c\u4e00\u822c\u5c5e\u4e8e\u673a\u5bc6\u6216\u8005\u79d8\u5bc6\u7b49\u7ea7\u3002<\/p>\n\n\n\n<p>\u53f3\u8fb9\u662f\u4e00\u4e2a\u53ef\u80fd\u7684\u5546\u4e1a\u4e0a\u7684\u7f51\u72b6\u5212\u5206\u6a21\u5f0f\uff0c\u8fd9\u79cd\u5212\u5206\u65b9\u5f0f\u5c31\u590d\u6742\u7684\u591a\u3002\u56e0\u4e3a\u53ef\u80fd\u4e0d\u540c\u90e8\u95e8\u4e4b\u95f4\u8fd8\u6709\u4e0d\u540c\u7684\u5212\u5206\u65b9\u5f0f\uff0c\u6709\u90e8\u95e8\u5185\u90e8\u7684top secret\u548csecret\uff0c\u4e0d\u540c\u90e8\u95e8\u7684secret\u53ef\u80fd\u53c8\u4ece\u5c5e\u4e8e\u4e0d\u540c\u4e8e\u90e8\u95e8top secret\u7684secret\u4e2d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4fe1\u606f\u6d41\u653f\u7b56<\/h3>\n\n\n\n<p><strong>\u4fe1\u606f\u6d41\u7b56\u7565(data flow policy)<\/strong>\u4e86\u9650\u5236\u4e0d\u540c\u5b89\u5168\u7ea7\u522b\u4e4b\u95f4\u7684\u4fe1\u606f\u6d41\u52a8\u65b9\u5f0f<\/p>\n\n\n\n<p>\u4fe1\u606f\u6d41\u7b56\u7565\u5fc5\u987b\u9075\u5faa<strong>\u4e0d\u5e72\u6270\u7b56\u7565(Noninterference policy)<\/strong>\uff0c\u5373\u8981\u6c42\u9ad8\u53d8\u91cf\u7684\u4fe1\u606f\u5bf9\u4f4e\u53d8\u91cf\u7684\u4fe1\u606f\u6ca1\u6709\u5f71\u54cd\uff08\u5373\u4e0d\u5e94\u5e72\u6270\uff09\u3002\u76f4\u89c2\u5730\u8bf4\uff0c\u4f60\u4e0d\u5e94\u8be5\u80fd\u591f\u901a\u8fc7\u89c2\u5bdf\u4f4e\u53d8\u91cf\u5f97\u51fa\u6709\u5173\u9ad8\u4fe1\u606f\u7684\u4efb\u4f55\u7ed3\u8bba(\u65e0\u8bba\u662f\u76f4\u63a5\u7684\u8fd8\u662f\u4fa7\u9762\u7684)<\/p>\n\n\n\n<p>\u5bf9\u4e8e\u4e0b\u9762\u8fd9\u4e2a\u4f8b\u5b50\uff0c\u5047\u8bbe\u4e0b\u6807H\u8868\u793a\u9ad8\u5b89\u5168\u7b49\u7ea7\uff0cL\u8868\u793a\u4f4e\u5b89\u5168\u7b49\u7ea7\uff0cH-&gt;H\u6216\u8005L-&gt;L\u90fd\u662f\u5141\u8bb8\u7684\uff0c\u56e0\u6b641 2\u53e5\u4ee3\u7801\u662f\u5141\u8bb8\u7684\uff0c\u4f46\u5bf9\u4e8e\u7b2c\u4e09\u53e5\u548c\u7b2c\u4e94\u53e5\u4ee3\u7801\uff0c\u65e0\u8bba\u4ec0\u4e48\u60c5\u51b5\u4e0b\uff0cH\u7684\u4fe1\u606f\u90fd\u4e0d\u5141\u8bb8\u6d41\u5411L\uff0c\u4f46\u662fL\u7684\u4fe1\u606f\u5141\u8bb8\u6d41\u5411H<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2Fnoninterference.6a7a935f-2.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2Fnoninterference.6a7a935f-2.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/figure>\n\n\n\n<p>\u8fd9\u6837\u4fdd\u8bc1\u4e86\u5728\u5b89\u5168\u7b49\u7ea7\u683c\u5f53\u4e2d\u4fe1\u606f\u6d41\u53ea\u4f1a\u81ea\u4e0b\u800c\u4e0a\u6d41\u52a8\uff08\u4ece\u4f4e\u5b89\u5168\u7b49\u7ea7\u6d41\u5411\u9ad8\u5b89\u5168\u7b49\u7ea7\uff09<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u673a\u5bc6\u6027\u548c\u5b8c\u6574\u6027<\/h2>\n\n\n\n<p>\u76f4\u89c2\u7684\u8bb2\uff0c<strong>\u673a\u5bc6\u6027\uff08Confidentiality\uff09<\/strong>&nbsp;\u6307\u7684\u662f\u963b\u6b62\u673a\u5bc6\u7684\u4fe1\u606f\u6cc4\u6f0f\uff0c\u5373\u4e0d\u5141\u8bb8\u673a\u5bc6\u4fe1\u606f\u6d41\u5411\u653b\u51fb\u8005\uff0c\u53ef\u4ee5\u7406\u89e3\u6210\u662f\u4e00\u79cd\u201c\u8bfb\u4fdd\u62a4\u201d\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2FQQ%E6%88%AA%E5%9B%BE20250109151024-3.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2FQQ%E6%88%AA%E5%9B%BE20250109151024-3.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/figure>\n\n\n\n<p><strong>\u5b8c\u6574\u6027\uff08Integrity\uff09<\/strong>&nbsp;\u6307\u7684\u662f\u9632\u6b62\u4e0d\u53d7\u4fe1\u4efb\u7684\u4fe1\u606f\u7834\u574f(\u53d7\u4fe1\u4efb\u7684)\u5173\u952e\u4fe1\u606f\uff0c\u5373\u4e0d\u5141\u8bb8\u4e0d\u53d7\u4fe1\u4efb\u7684\u4fe1\u606f\u6d41\u5411\u53d7\u4fe1\u4efb\u7684\u4fe1\u606f\uff0c\u53ef\u4ee5\u7406\u89e3\u6210\u662f\u4e00\u79cd\u201c\u5199\u4fdd\u62a4\u201d<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2FQQ%E6%88%AA%E5%9B%BE20250109151123-4.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2FQQ%E6%88%AA%E5%9B%BE20250109151123-4.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/figure>\n\n\n\n<p>\u673a\u5bc6\u6027\u5f88\u597d\u7406\u89e3\uff0c\u5c31\u662f\u9632\u6b62\u4fe1\u606f\u6cc4\u9732\u561b\uff0c\u90a3\u4e3a\u4ec0\u4e48\u8fd8\u8981\u6709\u4e00\u4e2a\u5b8c\u6574\u6027\u5462\uff0c\u8fd9\u91cc\u4e3e\u4e00\u4e2a\u6700\u5e38\u89c1\u7684\u4ee3\u7801\u6ce8\u5165\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x= readInput();\/\/untrusted\ncmd = \"...\" + x\ncmd = execute(cmd);\/\/critical(trusted)<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u7684x\u5c31\u5c5e\u4e8e\u4e0d\u53d7\u4fe1\u4efb\u7684\u4fe1\u606f\uff0c\u800cexecute\u51fd\u6570\u5c31\u5c5e\u4e8e\u53d7\u4fe1\u4efb\u7684\u5173\u952e\u4fe1\u606f\uff0c\u5982\u679c\u4e0d\u53d7\u4fe1\u4efb\u7684x\u6d41\u5411\u4e86\u53d7\u4fe1\u4efb\u7684execute\u51fd\u6570\uff0c\u5c31\u4f1a\u5bfc\u81f4RCE\uff0c\u56e0\u6b64\u6211\u4eec\u4e0d\u4f46\u9700\u8981\u4fdd\u62a4\u7a0b\u5e8f\u7684\u673a\u5bc6\u6027\uff0c\u4e5f\u5fc5\u987b\u4fdd\u62a4\u7a0b\u5e8f\u7684\u5b8c\u6574\u6027\u3002<\/p>\n\n\n\n<p>\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0\u673a\u5bc6\u6027\u548c\u5b8c\u6574\u6027\u6070\u597d\u662f\u5bf9\u79f0\u7684\u3002\u673a\u5bc6\u6027\u9632\u6b62H(\u9ad8\u5b89\u5168\u7b49\u7ea7\u4fe1\u606f)\u6d41\u5411L(\u4f4e\u5b89\u5168\u7b49\u7ea7\u4fe1\u606f)\uff0c\u800c\u5b8c\u6574\u6027\u662f\u9632\u6b62L(\u4e0d\u53d7\u4fe1\u4efb\u7684\u4fe1\u606f)\u6d41\u5411H(\u53d7\u4fe1\u4efb\u7684\u4fe1\u606f)\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2FQQ%E6%88%AA%E5%9B%BE20250109151940-5.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2FQQ%E6%88%AA%E5%9B%BE20250109151940-5.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e7f\u4e49\u7684\u5b8c\u6574\u6027<\/h3>\n\n\n\n<p>\u5e7f\u4e49\u7684\u5b8c\u6574\u6027\uff0c\u8fd8\u9700\u8981\u7ef4\u62a4\u548c\u4fdd\u8bc1\u6570\u636e\u7684<strong>\u51c6\u786e\u6027(Accuracy)<\/strong>\u3001<strong>\u5b8c\u5168\u6027(Completeness)<\/strong>\u548c<strong>\u4e00\u81f4\u6027(Consistency)<\/strong><\/p>\n\n\n\n<p><strong>\u51c6\u786e\u6027(Accuracy)<\/strong>\uff1a\u4e3a\u4e86\u4fdd\u8bc1\u4fe1\u606f\u6d41\u7684\u5b8c\u6574\u6027\uff0c\uff08\u53ef\u4fe1\u7684\uff09\u5173\u952e\u6570\u636e\u4e0d\u5e94\u88ab\u4e0d\u53ef\u4fe1\u7684\u6570\u636e\u7834\u574f<br><strong>\u5b8c\u5168\u6027(Completeness)<\/strong>\uff1a\u6570\u636e\u5e93\u7cfb\u7edf\u5e94\u5b8c\u6574\u5b58\u50a8\u6240\u6709\u6570\u636e<br><strong>\u4e00\u81f4\u6027(Consistency)<\/strong>\uff1a\u6587\u4ef6\u4f20\u8f93\u7cfb\u7edf\u5e94\u786e\u4fdd\u4e24\u7aef\uff08\u53d1\u9001\u65b9\u548c\u63a5\u6536\u65b9\uff09\u7684\u6587\u4ef6\u5185\u5bb9\u76f8\u540c<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u663e\u5f0f\u6d41(Explicit Flows)\u548c\u9690\u853d\u4fe1\u9053(overt Channels)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4fe1\u606f\u5982\u4f55\u6d41\u52a8<\/h3>\n\n\n\n<p>\u4fe1\u606f\u901a\u8fc7\u76f4\u63a5\u590d\u5236\u8fdb\u884c\u6d41\u52a8\uff0c\u8fd9\u53eb\u505a<strong>\u663e\u5f0f\u6d41(Explicit Flows)<\/strong>\uff0c\u6bd4\u5982a = b\u8fd9\u79cd<\/p>\n\n\n\n<p>\u4f46\u4fe1\u606f\u4e5f\u53ef\u4ee5\u901a\u8fc7\u5f71\u54cd\u63a7\u5236\u6d41\u7684\u65b9\u5f0f\u5411\u5916\u4f20\u9012\uff0c\u8fd9\u6837\u7684\u4fe1\u606f\u6d41\u79f0\u4e3a<strong>\u9690\u5f0f\u6d41\uff08Implicit Flow\uff09<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>secret = getSectre();\nif (secret &lt; 0)\n    publik = 1;\nelse\n    publik = 0;<\/code><\/pre>\n\n\n\n<p>\u79d8\u5bc6\u63a7\u5236\u4e0b\u526f\u4f5c\u7528\u7684\u4efb\u4f55\u5dee\u5f02\u90fd\u4f1a\u5bf9\u6709\u5173\u63a7\u5236\u7684\u4fe1\u606f\u8fdb\u884c\u7f16\u7801\uff0c\u8fd9\u4e9b\u4fe1\u606f\u53ef\u80fd\u4f1a\u88ab\u516c\u5f00\u89c2\u5bdf\u5e76\u6cc4\u9732\u79d8\u5bc6\u4fe1\u606f\u3002\u8fd9\u91cc\u6211\u4eec\u5c31\u53ef\u4ee5\u901a\u8fc7\u89c2\u5bdf&nbsp;<code>publik<\/code>&nbsp;\u7684\u65b9\u5f0f\u63a8\u6d4b\u51fa&nbsp;<code>secret<\/code>&nbsp;\u662f\u5426\u4e3a\u8d1f\uff0c\u8fd9\u6837\u5c31\u6cc4\u6f0f\u4e861\u6bd4\u7279\u7684\u4fe1\u606f\uff0c\u5f53\u7136\uff0c\u76f8\u6bd4\u4e8e\u663e\u5f0f\u6d41\uff0c\u9690\u5f0f\u6d41\u7684\u6cc4\u9732\u5f71\u54cd\u5c0f\u7684\u591a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u9690\u853d\u4fe1\u9053<\/h3>\n\n\n\n<p>\u6211\u4eec\u5c06\u5728\u8ba1\u7b97\u7cfb\u7edf\u4e2d\u6307\u793a\u4fe1\u606f\u7684\u673a\u5236\u4e3a&nbsp;<strong>\u4fe1\u9053\uff08Channels\uff09<\/strong>&nbsp;\u3002\u5982\u679c\u8fd9\u4e2a\u6307\u793a\u4fe1\u606f\u7684\u673a\u5236\u7684\u672c\u610f\u5e76\u4e0d\u662f\u4fe1\u606f\u4f20\u9012\uff0c\u8fd9\u6837\u7684\u4fe1\u9053\u79f0\u4e3a&nbsp;<strong>\u9690\u853d\u4fe1\u9053\uff08Covert\/Hidden Channels\uff09<\/strong>&nbsp;\uff0c\u4e5f\u5c31\u662f\u8bf4\u9690\u853d\u4fe1\u9053\u5b9e\u9645\u4e0a\u662f\u6b63\u5e38\u4fe1\u9053\u4f20\u64ad\u4e2d\u4ea7\u751f\u7684\u526f\u4f5c\u7528\uff0c\u53ea\u4e0d\u8fc7\u8fd9\u79cd\u526f\u4f5c\u7528\u5b58\u5728\u4e86\u6cc4\u9732\u4fe1\u606f\u7684\u53ef\u80fd\u3002<\/p>\n\n\n\n<p>\u5e38\u89c1\u7684\u9690\u853d\u4fe1\u9053\u6709\u5f88\u591a\u79cd\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u9690\u5f0f\u6d41<\/h4>\n\n\n\n<p>\u901a\u8fc7\u7a0b\u5e8f\u7684\u63a7\u5236\u7ed3\u6784\u6765\u6307\u793a\u4fe1\u606f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>if (secret &lt; 0)\n    public = 1;\nelse\n    public = 0;<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7public\u7684\u4fe1\u606f\u5224\u65adsecret\u7684\u53d6\u503c<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u7ec8\u6b62\u4fe1\u9053\uff08Termination Channels\uff09<\/h4>\n\n\n\n<p>\u901a\u8fc7\u7a0b\u5e8f\u662f\u5426\u7ec8\u6b62\u6765\u6307\u793a\u4fe1\u606f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>  while (secret &lt; 0)\n       ...;<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u65f6\u95f4\u4fe1\u9053<\/h4>\n\n\n\n<p>\u901a\u8fc7\u7a0b\u5e8f\u7684\u8ba1\u7b97\u65f6\u95f4\u6765\u6307\u793a\u4fe1\u606f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>if (secret &lt; 0)\n    for (int i = 0; i &lt; 1000000; i++)\n        ...;<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u5f02\u5e38<\/h4>\n\n\n\n<p>\u901a\u8fc7\u7a0b\u5e8f\u7684\u5f02\u5e38\u6765\u6307\u793a\u4fe1\u606f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>if (secret &lt; 0)\n    throw new Exception(\"...\");<\/code><\/pre>\n\n\n\n<p>\u6216\u8005<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int sa&#91;] = getSecretArray();\nsa&#91;secret] = 0; \/\/ \u82e5secret\u7684\u503c\u4e3a\u8d1f\u6570\uff0c\u8fd9\u6761\u6307\u4ee4\u5c31\u4f1a\u62a5\u9519<\/code><\/pre>\n\n\n\n<p>\u540c\u6837\u7684\uff0c\u4e0e\u6b63\u5e38\u4fe1\u9053\u76f8\u6bd4\uff0c\u9690\u853d\u4fe1\u9053\u7684\u4fe1\u606f\u6cc4\u9732\u6548\u679c\u4f1a\u5dee\u7684\u591a\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6c61\u70b9\u5206\u6790(Taint Analysis)<\/h2>\n\n\n\n<p><strong>\u6c61\u70b9\u5206\u6790(Taint Analysis)<\/strong>\u662f\u6700\u5e38\u89c1\u7684\u4fe1\u606f\u6d41\u5206\u6790\u6280\u672f\u3002\u5b83\u5c06\u7a0b\u5e8f\u6570\u636e\u5206\u4e3a\u4e24\u7c7b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u611f\u5174\u8da3\u7684\u6570\u636e(\u5206\u6790<strong>\u5b8c\u6574\u6027<\/strong>\u65f6\u6307\u7684\u662f<strong>\u4e0d\u53d7\u4fe1\u4efb\u7684\u6570\u636e<\/strong>\uff0c\u5206\u6790<strong>\u673a\u5bc6\u6027<\/strong>\u65f6\u6307\u7684\u662f<strong>\u654f\u611f\u6570\u636e<\/strong>)\uff0c\u6211\u4eec\u4f1a\u7ed9\u8fd9\u4e9b\u6570\u636e\u52a0\u6807\u7b7e\uff0c\u52a0\u4e0a\u6807\u7b7e\u540e\u53eb\u505a<strong>\u6c61\u70b9\u6570\u636e\uff08Tainted Data\uff09<\/strong><\/li>\n\n\n\n<li>\u5176\u4ed6\u6570\u636e\uff0c\u79f0\u4e3a<strong>\u65e0\u6c61\u70b9\u6570\u636e\uff08Untainted Data\uff09<\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u6c61\u70b9\u5206\u6790\u8ffd\u8e2a\u6c61\u70b9\u6570\u636e\u662f\u5982\u4f55\u5728\u7a0b\u5e8f\u4e2d\u6d41\u52a8\u7684\uff0c\u5e76\u4e14\u89c2\u5bdf\u5b83\u4eec\u662f\u5426\u6d41\u52a8\u5230\u4e86\u4e00\u4e9b\u6211\u4eec\u5173\u5fc3\u7684\u654f\u611f\u7684\u5730\u65b9\u3002\u5176\u4e2d\uff0c\u6c61\u70b9\u6570\u636e\u4ea7\u751f\u7684\u5730\u65b9\u79f0\u4e3a&nbsp;<strong>\u6e90\u5934\uff08Source\uff09<\/strong>&nbsp;\uff0c\u6211\u4eec\u4e0d\u5e0c\u671b\u6c61\u70b9\u6570\u636e\u6d41\u5411\u7684\u654f\u611f\u5730\u5e26\u79f0\u4e3a&nbsp;<strong>\u6c34\u69fd\uff08Sink\uff09<\/strong>&nbsp;\u3002\u5728\u5b9e\u9645\u4e2d\uff0c\u6c61\u70b9\u5206\u6790\u7684source\u901a\u5e38\u662f\u4e00\u4e9b\u7279\u6b8a\u7684\u65b9\u6cd5\uff0c\u8fd9\u4e9b\u65b9\u6cd5\u4f1a\u8fd4\u56de\u4e00\u4e9b\u6c61\u70b9\u6570\u636e\uff08\u6bd4\u5982\u8bf4\u5bc6\u7801\u3001\u547d\u4ee4\u4e4b\u7c7b\u7684\uff09\uff1b\u800c\u6c61\u70b9\u5206\u6790\u7684sink\u70b9\u901a\u5e38\u4e5f\u662f\u4e00\u4e9b\u654f\u611f\u7684\u65b9\u6cd5\uff08\u6bd4\u5982\u8bf4\u5199\u65e5\u5fd7\u3001\u6267\u884c\u547d\u4ee4\u4e4b\u7c7b\u7684\uff09\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u73b0\u5728\u6765\u770b\u770b\u6c61\u70b9\u5206\u6790\u5982\u4f55\u5e2e\u52a9\u6211\u4eec\u89e3\u51b3\u7a0b\u5e8f\u7684\u5b8c\u6574\u6027\u548c\u673a\u5bc6\u6027\u95ee\u9898\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u673a\u5bc6\u6027<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>source\uff1a\u4fdd\u5bc6\u6570\u636e\u6e90 <\/li>\n\n\n\n<li>sink\uff1a\u6cc4\u6f0f\u70b9 <\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u65f6\u6c61\u70b9\u5206\u6790\u5e38\u7528\u4e8e\u5904\u7406\u4fe1\u606f\u6cc4\u6f0f\uff0c\u6bd4\u5982\u8bf4\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = getPassword(); \/\/ source \ny = x\nlog(y); \/\/ sink<\/code><\/pre>\n\n\n\n<p>\u8fd9\u65f6\u6c61\u70b9\u6570\u636e(\u8fd9\u65f6\u7684\u6c61\u70b9\u6570\u636e\u6307\u7684\u662f\u654f\u611f\u6570\u636e)\u5728<code>x = getPassword()<\/code>\u4ea7\u751f\uff0c\u8fd9\u91cc\u4e5f\u5c31\u662f<strong>source\u70b9<\/strong>\uff1b\u800c\u6211\u4eec\u4e0d\u5e0c\u671b\u6c61\u70b9\u6570\u636e\u6d41\u5411\u7684\u654f\u611f\u5730\u5e26<strong>sink<\/strong>\u70b9\u662f<code>log(y)<\/code>\uff0c\u56e0\u6b64\uff0c\u8fd9\u65f6\u6211\u4eec\u5c31\u9700\u8981\u5224\u65ad\u4ece<code>x = getPassword()<\/code>\u8fd9\u4e2a<strong>source\u70b9<\/strong>\u4ea7\u751f\u7684\u6c61\u70b9\u6570\u636e\u662f\u5426\u6700\u7ec8\u4f1a\u6d41\u5411<strong>sink\u70b9<\/strong><code>log(y)<\/code>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b8c\u6574\u6027<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>source\uff1a\u4e0d\u53d7\u4fe1\u4efb\u7684\u6570\u636e\u6e90<\/li>\n\n\n\n<li>sink\uff1a\u654f\u611f\u51fd\u6570<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u65f6\u6c61\u70b9\u5206\u6790\u5e38\u7528\u4e8e\u5904\u7406\u4ee3\u7801\u6ce8\u5165\u7b49\u6ce8\u5165\u76f8\u5173\u7684\u6f0f\u6d1e\uff0c\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = readInput(); \/\/ source\ncmd = \"...\" + x;\nexecute(cmd); \/\/ sink<\/code><\/pre>\n\n\n\n<p>\u8fd9\u65f6\u6c61\u70b9\u6570\u636e(\u8fd9\u65f6\u7684\u6c61\u70b9\u6570\u636e\u6307\u7684\u662f\u4e0d\u53d7\u4fe1\u4efb\u7684\u6570\u636e)\u5728<code>x = readInput()<\/code>\u4ea7\u751f\uff0c\u8fd9\u91cc\u662f<strong>source\u70b9<\/strong>\uff1b\u800c\u6211\u4eec\u4e0d\u5e0c\u671b\u6c61\u70b9\u6570\u636e\u6d41\u5411\u7684\u654f\u611f\u5730\u5e26<strong>sink\u70b9<\/strong>\u662f<code>execute(cmd)<\/code>\uff0c\u56e0\u6b64\u6211\u4eec\u9700\u8981\u5224\u65ad\u4ece<code>x = readInput()<\/code>\u4ea7\u751f\u7684\u6c61\u70b9\u6570\u636e\u6700\u540e\u662f\u5426\u4f1a\u6d41\u5411<strong>sink\u70b9<\/strong><code>execute(cmd)<\/code>\u3002<\/p>\n\n\n\n<p>\u5728\u5b9e\u9645\u4e2d\uff0c\u6211\u4eec\u5e38\u5e38\u5c06\u6c61\u70b9\u5206\u6790\u62bd\u8c61\u6210<strong>&lt;sources,sinks,sanitizers&gt;<\/strong>\u7684\u5f62\u5f0f\uff0c<strong>source<\/strong>\u548c<strong>sink<\/strong>\u4e0a\u9762\u5df2\u7ecf\u89e3\u91ca\uff0c\u6b64\u5904\u4e0d\u518d\u8d58\u8ff0\uff0c\u90a3\u4e48<strong>sanitizer<\/strong>\u6307\u7684\u662f\u4ec0\u4e48\u5462\uff1f<strong>sanitizer<\/strong>\u7ffb\u8bd1\u8fc7\u6765\u53eb\u505a\u6d88\u6bd2\u5242\uff0c\u8fd9\u91cc\u6211\u4eec\u5e94\u5f53\u7406\u89e3\u6210<strong>\u65e0\u5bb3\u5316\u5904\u7406<\/strong>\uff0c\u5373\u4ee3\u8868\u901a\u8fc7\u6570\u636e\u52a0\u5bc6\u6216\u8005\u79fb\u9664\u5371\u5bb3\u64cd\u4f5c\u7b49\u624b\u6bb5\u4f7f\u6570\u636e\u4f20\u64ad\u4e0d\u518d\u5bf9\u8f6f\u4ef6\u7cfb\u7edf\u7684\u4fe1\u606f\u5b89\u5168\u4ea7\u751f\u5371\u5bb3<\/p>\n\n\n\n<p>\u901a\u8fc7\u4e0a\u9762\u7684\u6a21\u578b\uff0c\u73b0\u5728\u6c61\u70b9\u5206\u6790\u8f6c\u5316\u4e3a\u5206\u6790\u7a0b\u5e8f\u4e2d\u7531\u6c61\u70b9\u6e90\u5f15\u5165\u7684\u6570\u636e\u662f\u5426\u80fd\u591f\u4e0d\u7ecf\u65e0\u5bb3\u5904\u7406\uff0c\u800c\u76f4\u63a5\u4f20\u64ad\u5230\u6c61\u70b9\u6c47\u805a\u70b9\u3002\u5982\u679c\u4e0d\u80fd\uff0c\u8bf4\u660e\u7cfb\u7edf\u662f\u4fe1\u606f\u6d41\u5b89\u5168\u7684\uff1b\u5426\u5219\uff0c\u8bf4\u660e\u7cfb\u7edf\u4ea7\u751f\u4e86\u9690\u79c1\u6570\u636e\u6cc4\u9732\u6216\u5371\u9669\u6570\u636e\u64cd\u4f5c\u7b49\u5b89\u5168\u95ee\u9898<\/p>\n\n\n\n<p>\u4e3a\u4ec0\u4e48\u975e\u8981\u52a0\u4e0a\u4e00\u4e2a<strong>sanitizer<\/strong>\u5462\uff0c\u8fd9\u4e2a\u5176\u5b9e\u5f88\u597d\u7406\u89e3\uff0c\u5bf9\u4e8e\u5e38\u89c1\u7684\u9759\u6001\u5206\u6790\u8f6f\u4ef6\uff0c\u6bd4\u5982Seay\u8fd9\u79cd\u57fa\u4e8e\u6b63\u5219\u5339\u914d\u7684\u4ee3\u7801\u5ba1\u8ba1\u7a0b\u5e8f\uff0c\u4e0d\u4f46\u96be\u4ee5\u5206\u6790\u53ef\u63a7\u6570\u636e\u80fd\u5426\u771f\u7684\u6d41\u5411\u5371\u9669\u51fd\u6570\uff0c\u5373\u4f7f\u771f\u7684\u6d41\u5411\u4e86\u5371\u9669\u51fd\u6570\uff0c\u6211\u4eec\u4e5f\u5f88\u96be\u5224\u65ad\u53ef\u63a7\u6570\u636e\u5728\u6d41\u5411\u5371\u9669\u51fd\u6570\u65f6\u662f\u5426\u4ecd\u7136\u5177\u6709\u5a01\u80c1\u6027\uff0c\u6bd4\u5982\u4e0b\u9762\u7684\u4ee3\u7801<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;?php eval(md5($_POST&#91;'a']));  ?&gt;<\/code><\/pre>\n\n\n\n<p>\u4f5c\u4e3a\u5b89\u5168\u5206\u6790\u8005\u7684\u6211\u4eec\u77e5\u9053\uff0c\u867d\u7136<strong>source\u70b9<\/strong><code>$_POST['a']<\/code>\u4ea7\u751f\u7684\u6c61\u70b9\u6570\u636e\u786e\u5b9e\u6d41\u5411\u4e86<strong>sink\u70b9<\/strong><code>eval()<\/code>\uff0c\u4f46\u7531\u4e8e\u6570\u636e\u6d41\u7ecf\u8fc7\u4e86<strong>sanitizer<\/strong>\u51fd\u6570<code>md5()<\/code>\u7684\u5904\u7406\uff0c\u4e0d\u53d7\u4fe1\u4efb\u7684\u6570\u636e\u5df2\u7ecf\u4e0d\u518d\u5177\u6709\u5a01\u80c1\u6027\uff0c\u800c\u5bf9\u4e8eSeay\u8fd9\u79cd\u57fa\u4e8e\u6b63\u5219\u7684\u539f\u59cb\u4ee3\u7801\u5ba1\u8ba1\u8f6f\u4ef6\u662f\u6ca1\u6709\u8fd9\u4e48\u667a\u80fd\u7684\uff0c\u53ea\u4f1a\u5339\u914d\u5230eval\u5c31\u62a5\u6f0f\u6d1e<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2FQQ%E6%88%AA%E5%9B%BE20250109164558-6.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2FQQ%E6%88%AA%E5%9B%BE20250109164558-6.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/figure>\n\n\n\n<p>\u5e76\u4e14\u6211\u4eec\u4e5f\u53ef\u4ee5\u975e\u5e38\u76f4\u89c2\u7684\u611f\u53d7\u5230\uff0c\u901a\u8fc7<strong>sanitizer<\/strong>\u6211\u4eec\u662f\u975e\u5e38\u5bb9\u6613\u5206\u6790\u672a\u6388\u6743\u6f0f\u6d1e\u7684\uff0c\u6bd4\u5982\u6709\u4e00\u4e2a\u9274\u6743\u4ee3\u7801include(CheckSession.php)\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5206\u6790\u6211\u4eec\u7684\u6c61\u70b9\u6570\u636e\u662f\u5426\u80fd\u4e0d\u7ecf\u8fc7\u8fd9\u4e2a<strong>sanitizer<\/strong>\u6d41\u5411<strong>sink\u70b9<\/strong>\u5373\u53ef<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6c61\u70b9\u5206\u6790\u7684\u5904\u7406\u8fc7\u7a0b<\/h3>\n\n\n\n<p>\u6c61\u70b9\u5206\u6790\u7684\u5904\u7406\u8fc7\u7a0b\u53ef\u4ee5\u5206\u4e3a\u4e09\u4e2a\u9636\u6bb5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8bc6\u522b\u6c61\u70b9\u6e90(source)\u548c\u6c47\u805a\u70b9(sink)<\/li>\n\n\n\n<li>\u6c61\u70b9\u4f20\u64ad\u5206\u6790<\/li>\n\n\n\n<li>\u65e0\u5bb3\u5904\u7406<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2F%E7%AE%80%E5%8D%95%E7%90%86%E8%A7%A3%E6%B1%A1%E7%82%B9%E5%88%86%E6%9E%90%E6%8A%80%E6%9C%AF-7.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2F%E7%AE%80%E5%8D%95%E7%90%86%E8%A7%A3%E6%B1%A1%E7%82%B9%E5%88%86%E6%9E%90%E6%8A%80%E6%9C%AF-7.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">\u8bc6\u522b\u6c61\u70b9\u6e90(source)\u548c\u6c47\u805a\u70b9(sink)<\/h4>\n\n\n\n<p>\u4e0d\u540c\u7a0b\u5e8f\u4e2dsource\u548csink\u7684\u8bc6\u522b\u65b9\u5f0f\u4e0d\u540c\uff0c\u4e00\u822c\u7684\uff0c\u6211\u4eec\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528\u542f\u53d1\u5f0f\u7684\u7b56\u7565\u8fdb\u884c\u6807\u8bb0\uff0c\u4f8b\u5982\u628a\u6765\u81ea\u7a0b\u5e8f\u5916\u90e8\u8f93\u5165\u7684\u6570\u636e\u7edf\u79f0\u4e3a\u201c\u6c61\u70b9\u201d\u6570\u636e\uff0c\u4fdd\u5b88\u5730\u8ba4\u4e3a\u8fd9\u4e9b\u6570\u636e\u6709\u53ef\u80fd\u5305\u542b\u6076\u610f\u7684\u653b\u51fb\u6570\u636e\uff0c\u4e5f\u5c31\u662f\u4e00\u79cd<strong>Overapproximate<\/strong>\uff0c\u5f53\u7136\u4e3a\u4e86\u5b9e\u73b0Sound\uff0c\u8fd9\u4e00\u70b9\u65e0\u53ef\u539a\u975e<\/li>\n\n\n\n<li>\u6839\u636e\u5177\u4f53\u5e94\u7528\u7a0b\u5e8f\u8c03\u7528\u7684 API \u6216\u8005\u91cd\u8981\u7684\u6570\u636e\u7c7b\u578b\uff0c\u624b\u5de5\u6807\u8bb0Source\u548cSink<\/li>\n\n\n\n<li>\u4f7f\u7528\u7edf\u8ba1\u6216\u673a\u5668\u5b66\u4e60\u6280\u672f\u81ea\u52a8\u5730\u8bc6\u522b\u548c\u6807\u8bb0Source\u53caSink<\/li>\n<\/ul>\n\n\n\n<p>\u4e0b\u56fe\u662f\u4e00\u4e9b\u5b66\u672f\u8bba\u6587\u4e2d\u63d0\u51fa\u7684Web\u5e94\u7528\u7a0b\u5e8f\u6f0f\u6d1e\u68c0\u6d4b\u4e2d\u7684<strong>Source\u70b9<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2F%E7%AE%80%E5%8D%95%E7%90%86%E8%A7%A3%E6%B1%A1%E7%82%B9%E5%88%86%E6%9E%90%E6%8A%80%E6%9C%AF-8.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2F%E7%AE%80%E5%8D%95%E7%90%86%E8%A7%A3%E6%B1%A1%E7%82%B9%E5%88%86%E6%9E%90%E6%8A%80%E6%9C%AF-8.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">\u6c61\u70b9\u4f20\u64ad\u5206\u6790<\/h4>\n\n\n\n<p>\u6c61\u70b9\u4f20\u64ad\u5206\u6790\uff0c\u987e\u540d\u601d\u4e49\uff0c\u4fbf\u662f\u5206\u6790\u6c61\u70b9\u771f\u6b63\u7684\u6570\u636e\u6d41\u52a8\u8f68\u8ff9\uff0c\u73b0\u5728\u4e3b\u8981\u5206\u4e3a\u663e\u5f0f\u6d41\u5206\u6790\u548c\u9690\u5f0f\u6d41\u5206\u6790\u4e24\u79cd<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u663e\u5f0f\u6d41\u5206\u6790<\/h5>\n\n\n\n<p>\u8fd9\u91cc\u524d\u9762\u5176\u5b9e\u5df2\u7ecf\u89e3\u91ca\u8fc7\u57fa\u672c\u6982\u5ff5\uff0c\u4e5f\u5c31\u662f\u5206\u6790\u6c61\u70b9\u6807\u8bb0\u5982\u4f55\u968f\u7a0b\u5e8f\u4e2d\u53d8\u91cf\u4e4b\u95f4\u7684<strong>\u6570\u636e\u4f9d\u8d56\u5173\u7cfb<\/strong>\u4f20\u64ad\uff0c\u8fd9\u91cc\u4e3b\u8981\u7ed9\u4e2a\u4f8b\u5b50\u6765\u5177\u4f53\u770b\u770b\u5982\u4f55\u5728\u4ee3\u7801\u4e2d\u5206\u6790\u663e\u5f0f\u6d41\u548c\u9690\u5f0f\u6d41<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2F%E7%AE%80%E5%8D%95%E7%90%86%E8%A7%A3%E6%B1%A1%E7%82%B9%E5%88%86%E6%9E%90%E6%8A%80%E6%9C%AF-9.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2F%E7%AE%80%E5%8D%95%E7%90%86%E8%A7%A3%E6%B1%A1%E7%82%B9%E5%88%86%E6%9E%90%E6%8A%80%E6%9C%AF-9.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/figure>\n\n\n\n<pre class=\"wp-block-code\"><code><code>int a =source<\/code> \u2193<code>x = a * 2<\/code> \u2193<code>sink(x)<\/code>     <code>int b =source<\/code> \u2193<code>y = b + 4<\/code> \u2193<code>sink(y)<\/code><\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e24\u6761\u5c31\u5c5e\u4e8e\u975e\u5e38\u76f4\u63a5\u7684\u3001\u8089\u773c\u53ef\u89c1\u7684\u4eceSource\u5230Sink\u7684\u6d41\u52a8\uff0c\u901a\u8fc7\u76f4\u63a5\u7684\u8d4b\u503c\u3001\u51fd\u6570\u8c03\u7528\u5b9e\u73b0\u4fe1\u606f\u7684\u6d41\u52a8<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u9690\u5f0f\u6d41\u5206\u6790<\/h5>\n\n\n\n<p>\u9690\u5f0f\u6d41\u5206\u6790\u662f\u5206\u6790\u6c61\u70b9\u6807\u8bb0\u5982\u4f55\u968f\u7a0b\u5e8f\u4e2d\u53d8\u91cf\u4e4b\u95f4\u7684<strong>\u63a7\u5236\u4f9d\u8d56\u5173\u7cfb<\/strong>\u4f20\u64ad,\u4e5f\u5c31\u662f\u5206\u6790\u6c61\u70b9\u6807\u8bb0\u5982\u4f55\u4ece\u6761\u4ef6\u6307\u4ee4\u4f20\u64ad\u5230\u5176\u6240\u63a7\u5236\u7684\u8bed\u53e5<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2F%E7%AE%80%E5%8D%95%E7%90%86%E8%A7%A3%E6%B1%A1%E7%82%B9%E5%88%86%E6%9E%90%E6%8A%80%E6%9C%AF-10.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/fushuling-1309926051.cos.ap-shanghai.myqcloud.com\/2025%2F01%2F09%2F%E7%AE%80%E5%8D%95%E7%90%86%E8%A7%A3%E6%B1%A1%E7%82%B9%E5%88%86%E6%9E%90%E6%8A%80%E6%9C%AF-10.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/figure>\n\n\n\n<p>\u8fd9\u91cc\u7684\u663e\u5f0f\u6d41\u8f83\u4e3a\u660e\u663e\uff0c\u4e0d\u518d\u8d58\u8ff0\uff0c\u4e3b\u8981\u5c31\u662f\u9690\u5f0f\u6d41\u6bd4\u8f83\u6709\u610f\u601d\u3002\u867d\u7136x\u548cy\u4e4b\u95f4\u5e76\u4e0d\u5b58\u5728\u76f4\u63a5\u7684\u8d4b\u503c\u6216\u8005\u8c03\u7528\uff0c\u4f46\u662f\u4fe1\u606f\u4ecd\u7136\u901a\u8fc7\u63a7\u5236\u4f9d\u8d56\u4ecex\u4f20\u64ad\u5230\u4e86y<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>for (int i=0;i&lt;X.length();i++){\n  int x=(int)X.charAt(i);\n  int y=0;\n  for (int j= 0;j&lt; x; j++){\n    y=y+1;\n}<\/code><\/pre>\n\n\n\n<p>x\u5177\u4f53\u4ee3\u8868\u7684\u503c\u6211\u4eec\u4e0d\u77e5\u9053\uff0c\u4f46\u8fd9\u91cc\u7684for\u5faa\u73af\u7684\u542b\u4e49\u5b9e\u9645\u4e0a\u5c31\u662fx\u662f\u591a\u5c11\uff0cy\u5c31\u589e\u52a0\u591a\u5c11\uff0c\u6700\u540efor\u5faa\u73af\u7ed3\u675f\u5b9e\u9645\u4e0ax\u548cy\u7684\u503c\u662f\u4e00\u6837\u7684\u3002\u56e0\u6b64\u867d\u7136\u4e0d\u5b58\u5728\u76f4\u63a5\u7684\u6570\u636e\u5173\u7cfb\uff0c\u4fe1\u606f\u4ecd\u7136\u4ecex\u6d41\u5411\u4e86y\uff0c\u8fd9\u5c31\u53eb\u9690\u5f0f\u6d41\u4f20\u64ad<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u65e0\u5bb3\u5904\u7406(sanitizer)<\/h4>\n\n\n\n<p>\u6c61\u70b9\u6570\u636e\u7ecf\u8fc7<strong>sanitizer<\/strong>\u7684\u5904\u7406\u540e\uff0c\u6570\u636e\u672c\u8eab\u4e0d\u518d\u643a\u5e26\u654f\u611f\u4fe1\u606f\u6216\u8005\u9488\u5bf9\u8be5\u6570\u636e\u7684\u64cd\u4f5c\u4e0d\u4f1a\u518d\u5bf9\u7cfb\u7edf\u4ea7\u751f\u5371\u5bb3\u3002 \u6b63\u786e\u5730\u4f7f\u7528\u65e0\u5bb3\u5904\u7406\u53ef\u4ee5\u964d\u4f4e\u7cfb\u7edf\u4e2d\u6c61\u70b9\u6807\u8bb0\u7684\u6570\u91cf\uff0c\u63d0\u9ad8\u6c61\u70b9\u5206\u6790\u7684\u6548\u7387\uff0c\u5e76\u4e14\u907f\u514d\u7531\u4e8e\u6c61\u70b9\u6269\u6563\u5bfc\u81f4\u7684\u5206\u6790\u7ed3\u679c\u4e0d\u7cbe\u786e\u7684\u95ee\u9898\u3002\u4f8b\u5982\uff0c\u52a0\u5bc6\u5e93\u51fd\u6570\u50cf\u662f\u4e0a\u9762\u4f8b\u5b50\u4e2d\u7684<code>md5()<\/code>\u5e94\u8be5\u88ab\u8bc6\u522b\u6210\u65e0\u5bb3\u5904\u7406\u6a21\u5757\uff0c\u7ecf\u8fc7<code>md5()<\/code>\u5904\u7406\u540e\u7684<code>md5($_POST['a'])<\/code>\u4e0d\u5e94\u518d\u88ab\u8ba4\u4e3a\u662f\u6c61\u70b9\u6570\u636e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 \u53d7yulate\u5f3a\u70c8\u63a8\u8350\uff0c\u53bbB\u7ad9\u770b\u4e86\u4e00\u4e0b\u76ee\u524d\u56fd\u5185\u5b66\u672f\u754c\u9759\u6001\u5206\u6790\u6700\u524d\u6cbf\u7684\u9759\u6001\u5206\u6790\u8bfe\uff0c\u7531\u5357\u4eac\u5927\u5b66\u674e\u6a3e\u8001\u5e08\u548c\u8c2d\u6dfb [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-3351","post","type-post","status-publish","format-standard","hentry","category-13"],"_links":{"self":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/3351","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/comments?post=3351"}],"version-history":[{"count":33,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/3351\/revisions"}],"predecessor-version":[{"id":3416,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/3351\/revisions\/3416"}],"wp:attachment":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/media?parent=3351"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/categories?post=3351"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/tags?post=3351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}