{"id":207550,"date":"2025-07-08T10:14:14","date_gmt":"2025-07-08T02:14:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207550\/"},"modified":"2025-07-08T10:14:14","modified_gmt":"2025-07-08T02:14:14","slug":"%e4%bd%bf-go-%e6%b5%8b%e8%af%95%e5%bd%bc%e6%ad%a4%e7%8b%ac%e7%ab%8b%ef%bc%88%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%84%e7%aa%81%e5%8f%98%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207550\/","title":{"rendered":"\u4f7f Go \u6d4b\u8bd5\u5f7c\u6b64\u72ec\u7acb\uff08\u5168\u5c40\u53d8\u91cf\u7684\u7a81\u53d8\uff09"},"content":{"rendered":"<p><b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>\u4f7f Go \u6d4b\u8bd5\u5f7c\u6b64\u72ec\u7acb\uff08\u5168\u5c40\u53d8\u91cf\u7684\u7a81\u53d8\uff09<\/span><\/p>\n<p><span>\u6765\u6e90\uff1astackoverflow<\/span><br \/>\n<span>2024-04-23 15:39:34<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u79ef\u7d2f\u77e5\u8bc6\uff0c\u80dc\u8fc7\u79ef\u84c4\u91d1\u94f6\uff01\u6bd5\u7adf\u5728Golang\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837\u7684\u95ee\u9898\uff0c\u5f80\u5f80\u90fd\u662f\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u6ca1\u6709\u638c\u63e1\u597d\u800c\u5bfc\u81f4\u7684\uff0c\u56e0\u6b64\u57fa\u7840\u77e5\u8bc6\u70b9\u7684\u79ef\u7d2f\u662f\u5f88\u91cd\u8981\u7684\u3002\u4e0b\u9762\u672c\u6587\u300a\u4f7f Go \u6d4b\u8bd5\u5f7c\u6b64\u72ec\u7acb\uff08\u5168\u5c40\u53d8\u91cf\u7684\u7a81\u53d8\uff09\u300b\uff0c\u5c31\u5e26\u5927\u5bb6\u8bb2\u89e3\u4e00\u4e0b\u77e5\u8bc6\u70b9\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/p>\n<p> \u95ee\u9898\u5185\u5bb9<br \/>\n <\/p>\n<p>\u5047\u8bbe\u6211\u8fd0\u884c\u4e86\u4ee5\u4e0b\u6d4b\u8bd5\uff1a<\/p>\n<pre>const unchanged = \"unchanged\"\n\nvar myField = unchanged\n\nfunc TestChangeField1(t *testing.T) {\n    if myField != unchanged {\n        t.FailNow()\n    }\n    myField = \"changed\"\n}\n\nfunc TestChangeField2(t *testing.T) {\n    if myField != unchanged {\n        t.FailNow()\n    }\n    myField = \"changed\"\n}<\/pre>\n<p>\u7b2c\u4e8c\u4e2a\u6d4b\u8bd5\u5c06\u5931\u8d25\uff0c\u56e0\u4e3a\u53d8\u91cf\u5df2\u5728\u53e6\u4e00\u4e2a\u6d4b\u8bd5\u4e2d\u66f4\u6539\u3002<\/p>\n<p>\u6211\u77e5\u9053\u6709\u4e00\u4e9b\u89e3\u51b3\u65b9\u6cd5\uff0c\u4f8b\u5982\u4f7f\u7528\u6d4b\u8bd5\u5957\u4ef6\uff0c\u8be5\u5957\u4ef6\u63d0\u4f9b\u6302\u94a9\u6765\u5c06\u6b64\u503c\u91cd\u7f6e\u4e3a\u6d4b\u8bd5\u4e4b\u95f4\u7684\u521d\u59cb\u72b6\u6001\u3002\u4f46\u9996\u5148\u8fd9\u610f\u5473\u7740\u4e00\u4e9b\u5f00\u9500\uff0c\u5176\u6b21\u6211\u89c9\u5f97\u6574\u4e2a\u884c\u4e3a\u4ee4\u4eba\u60ca\u8bb6\uff0c\u6240\u4ee5\u6211\u4e0d\u80fd\u771f\u6b63\u786e\u5b9a\u6211\u7684\u9879\u76ee\u4e2d\u7684\u6bcf\u4e2a\u4eba\u90fd\u8bb0\u4f4f\u5e76\u9075\u5b88\u8fd9\u4e00\u70b9\u3002<\/p>\n<p><code>go test<\/code> \u662f\u5426\u6709\u66f4\u76f4\u63a5\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u4f8b\u5982\u6211\u5c1a\u672a\u627e\u5230\u7684\u6807\u5fd7\uff1f<\/p>\n<p> <\/p>\n<h2>\u89e3\u51b3\u65b9\u6848<\/h2>\n<p> <\/p>\n<p>@jimb \u5728\u8bc4\u8bba\u4e2d\u63d0\u5230\u4e86\u8fd9\u4e00\u70b9\uff0c\u4f46\u5982\u679c\u60a8\u9700\u8981\u5728\u6d4b\u8bd5\u7528\u4f8b\u540e\u8fd0\u884c\u6e05\u7406\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 <code>t.cleanup<\/code> \u6ce8\u518c\u6bcf\u6b21\u6d4b\u8bd5\u540e\u8fd0\u884c\u7684\u51fd\u6570\u3002<\/p>\n<pre>package main_test\n\nimport (\n    \"testing\"\n)\n\nconst Default = \"default\"\nconst SomethingElse = \"something else\"\n\nvar someVar = Default\n\nfunc TestOne(t *testing.T) {\n    t.Cleanup(resetState)\n    if someVar != Default {\n        t.FailNow()\n    }\n    someVar = SomethingElse\n}\n\nfunc TestTwo(t *testing.T) {\n    t.Cleanup(resetState)\n    if someVar != Default {\n        t.FailNow()\n    }\n    someVar = SomethingElse\n}\n\nfunc resetState() {\n    someVar = Default\n}<\/pre>\n<p>\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300a\u4f7f Go \u6d4b\u8bd5\u5f7c\u6b64\u72ec\u7acb\uff08\u5168\u5c40\u53d8\u91cf\u7684\u7a81\u53d8\uff09\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f53\u524d\u4f4d\u7f6e\uff1a &gt; &gt; &#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207550","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207550","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207550"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207550\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207550"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207550"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}