{"id":330,"date":"2023-10-14T09:48:56","date_gmt":"2023-10-14T01:48:56","guid":{"rendered":"https:\/\/wp.minicoda.com\/?p=330"},"modified":"2025-03-18T19:26:26","modified_gmt":"2025-03-18T11:26:26","slug":"goto%e5%85%b3%e9%94%ae%e5%ad%97","status":"publish","type":"post","link":"https:\/\/wp.minicoda.com\/index.php\/goto%e5%85%b3%e9%94%ae%e5%ad%97\/","title":{"rendered":"goto\u5173\u952e\u5b57"},"content":{"rendered":"\n<p>  \u63d0\u5230goto, \u5927\u5bb6\u4e00\u5b9a\u80fd\u60f3\u5230\u8fea\u6770\u65af\u7279\u62c9\u53d1\u8868\u7684\u8457\u540d\u8bba\u6587goto\u6709\u5bb3\u8bba(Go To Statement Considered Harmful)\u3002\u6b63\u662f\u5b83\u63a8\u52a8\u4e86\u7ed3\u6784\u5316\u7a0b\u5e8f\u8bbe\u8ba1\u8bed\u8a00\u7684\u53d1\u5c55\u3002\u516c\u6b63\u5730\u8bf4\uff0cgoto\u5e76\u975e\u90a3\u4e48\u53ef\u6015\uff0c\u673a\u5668\u7801\/\u6c47\u7f16\u7801\u672c\u8eab\u652f\u6301\u8df3\u8f6c\uff0c\u5c31\u662fgoto\u7684\u5e95\u5c42\u5f62\u6001\u3002\u8ba1\u7b97\u673a\u7a0b\u5e8f\u4e2d\u6761\u4ef6\u9009\u62e9\u3001\u5faa\u73af\u7b49\u8bed\u53e5\u6700\u7ec8\u4f9d\u7136\u4f9d\u9760\u8df3\u8f6c\u6307\u4ee4\u5b8c\u6210\uff0c\u53ea\u662f\u9ad8\u7ea7\u7f16\u7a0b\u8bed\u8a00\u4e0d\u5efa\u8bae\u7528goto, \u4f1a\u9020\u6210\u7a0b\u5e8f\u5458\u7684\u56f0\u6270\u3002\u4f46\uff0c\u673a\u5668\u4ece\u6765\u90fd\u6ca1\u56f0\u6270\u8fc7\uff0cCPU\u6839\u636ejmp\u6216j*\u6307\u4ee4\u7684\u5730\u5740\u6539\u5199RIP\u5730\u5740\u5e76\u6267\u884c\uff0c\u4e1d\u6ed1\u65e0\u6bd4\uff0c\u4ece\u672a\u62b1\u6028\u8fc7\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\"\u4e07\u6076\"\u7684goto<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8d8a\u9760\u8fd1\u5e95\u5c42\u7684\u8bed\u8a00\u53ef\u80fd\u4f1a\u652f\u6301goto\uff0c\u4f8b\u5982\u6c47\u7f16\u548cC\/C++, \u66f4\u9ad8\u7ea7\u7684\u7f16\u7a0b\u8bed\u8a00\u5c3d\u53ef\u80fd\u5e9f\u5f03goto, C#\u53c8\u662f\u4e2a\u7279\u4f8b\uff0c\u5b83\u4e5f\u652f\u6301goto.<\/li>\n\n\n\n<li>goto\u5c31\u50cf\u4e00\u4e2a\u5c0f\u5b69\u5b50\uff0c\u4e00\u4f1a\u54ed\u4e00\u4f1a\u95f9\uff0c\u5b8c\u5168get\u4e0d\u5230\u4ed6\u60f3\u8981\u4ec0\u4e48\u3002\u4f46\u5982\u679c\u662f\u4e00\u4e2a\u4e13\u4e1a\u7684\u6280\u672f\u5458\uff0cgoto\u80fd\u53d1\u6325\u4ed6\u6700\u5927\u80fd\u529b\uff0c\u56e0\u4e3a\u4ed6\u968f\u65f6\u90fd\u77e5\u9053\u5e94\u8be5\u53bb\u54ea\u91cc\u505a\u4ec0\u4e48\u3002<\/li>\n\n\n\n<li>\u201cgoto\u662f\u9b54\u9b3c\u201d\u5e76\u4e0d\u603b\u6b63\u786e\u3002\u5185\u6838\u548c\u9a71\u52a8\u4ee3\u7801\u4e3a\u4e86\u66f4\u9c81\u68d2\uff0c\u6709\u5065\u5168\u7684\u51fa\u9519\u5904\u7406\u673a\u5236\uff0c\u51fa\u9519\u5904\u7406\u4e00\u822c\u4f1a\u88ab\u5b9a\u4e49\u6210label, \u5728\u51fa\u9519\u60c5\u5f62\u8f83\u591a\u65f6\u7528goto\u662f\u6700\u4f73\u5316\u8df3\u8f6c\uff0c\u800c\u4e0d\u662f\u591a\u79cd\u6761\u4ef6\u5224\u65ad\u51fa\u9519\u5904\u7406\u3002<\/li>\n\n\n\n<li>Rust\u6539\u8fdbC\u8bed\u8a00\u51fa\u9519\u5904\u7406\u903b\u8f91\uff0c\u907f\u514d\u8fc7\u591a\u5224\u65ad\uff0c\u5f15\u5165match\u8bed\u53e5\u5339\u914dOK\u6216fail\u573a\u666f\uff0c\u66f4\u6e05\u6670\u53ef\u9760\u3002<\/li>\n\n\n\n<li>Go\u8bed\u8a00\u662fC\u8bed\u8a00\u7684\u8fdb\u5316\u7248\uff0c\u5f15\u5165defer\u8bed\u53e5\u89e3\u51b3\u5ef6\u8fdf\u9519\u8bef\u5904\u7406\uff0c\u907f\u514dC\u8bed\u8a00\u5927\u91cf\u51fa\u9519\u5904\u7406\u3002<\/li>\n\n\n\n<li>PHP\u548cC\u8bed\u8a00\u7c7b\u4f3c\uff0c\u4e5f\u652f\u6301goto.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">goto\u7684\u5185\u90e8\u5b9e\u73b0<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>goto\u662f\u65e0\u6761\u4ef6\u8df3\u8f6c\uff0c\u53ef\u5bf9\u5e94\u6c47\u7f16jmp.<\/li>\n\n\n\n<li>\u6c47\u7f16\u4ee3\u7801\u9690\u5f0f\u5305\u542b\u6240\u5728\u4ee3\u7801\u201d\u5730\u5740\u201d, \u7a0b\u5e8f\u5458\u53ef\u4ee5\u624b\u52a8\u52a0\u4e0a\u4efb\u610flabel\u7ed9goto\u63d0\u4f9b\u8df3\u8f6c\u4f4d\u7f6e\u3002\n<ul class=\"wp-block-list\">\n<li>\u5f53\u7136\u4e5f\u53ef\u4ee5\u6839\u636e\u6c47\u7f16\u4ee3\u7801\u7684\u5806\u6808\u76f8\u5bf9\u4f4d\u7f6e(\u5982EBP\/ESP\/PC)\u8df3\u8f6c\uff0c\u4e0d\u9700\u8981\u989d\u5916\u5b9a\u4e49label.<\/li>\n\n\n\n<li>\u6807\u7b7elabel\u670d\u52a1\u4e8e\u7a0b\u5e8f\u5458\u548c\u7f16\u8bd1\u5668\uff0c\u4e0d\u4f1a\u589e\u52a0\u673a\u5668\u7801\u957f\u5ea6\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>break\/continue\/return\u672c\u8d28\u90fd\u662f\u53ef\u63a7\/\u53d7\u9650\u7684\u201dgoto\u201d.<\/li>\n\n\n\n<li>\u5f53\u7136\uff0c\u5173\u952e\u5b57\u548c\u6570\u5b57\u4e0d\u80fd\u5f53\u505alabel.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e0d\u540c\u7f16\u7a0b\u8bed\u8a00\u7684goto<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C# \u9664\u652f\u6301\u666e\u901a\u7684goto <em><strong>identifier<\/strong><\/em>, \u4e5f\u652f\u6301switch\u8bed\u53e5\u4e2dgoto case <strong><em>condition<\/em><\/strong>\u548cgoto default.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u63d0\u5230goto, \u5927\u5bb6\u4e00\u5b9a\u80fd\u60f3\u5230\u8fea\u6770\u65af\u7279\u62c9\u53d1\u8868\u7684\u8457\u540d\u8bba\u6587goto\u6709\u5bb3\u8bba(Go To Statement Considered Harmful)\u3002\u6b63\u662f\u5b83\u63a8\u52a8\u4e86\u7ed3\u6784\u5316\u7a0b\u5e8f\u8bbe\u8ba1\u8bed\u8a00\u7684\u53d1\u5c55\u3002\u516c\u6b63\u5730\u8bf4\uff0cgoto\u5e76&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,122],"tags":[9,123],"class_list":["post-330","post","type-post","status-publish","format-standard","hentry","category-8","category-122","tag-9","tag-123"],"views":162,"_links":{"self":[{"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/posts\/330","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/comments?post=330"}],"version-history":[{"count":4,"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/posts\/330\/revisions"}],"predecessor-version":[{"id":3995,"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/posts\/330\/revisions\/3995"}],"wp:attachment":[{"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/media?parent=330"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/categories?post=330"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.minicoda.com\/index.php\/wp-json\/wp\/v2\/tags?post=330"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}