{"id":207103,"date":"2025-07-08T08:28:46","date_gmt":"2025-07-08T00:28:46","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207103\/"},"modified":"2025-07-08T08:28:46","modified_gmt":"2025-07-08T00:28:46","slug":"%e6%a3%80%e6%9f%a5-struct-%e4%b8%ad%e7%9a%84-int-%e5%ad%97%e6%ae%b5%e6%98%af%e5%90%a6%e4%b8%ba-nil%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207103\/","title":{"rendered":"\u68c0\u67e5 struct \u4e2d\u7684 int \u5b57\u6bb5\u662f\u5426\u4e3a nil\uff1f"},"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>\u68c0\u67e5 struct \u4e2d\u7684 int \u5b57\u6bb5\u662f\u5426\u4e3a nil\uff1f<\/span><\/p>\n<p><span>\u6765\u6e90\uff1astackoverflow<\/span><br \/>\n<span>2024-04-20 08:12:31<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p><span style=\"font-size: 15px\">\u5b66\u4e60\u77e5\u8bc6\u8981\u5584\u4e8e\u601d\u8003\uff0c\u601d\u8003\uff0c\u518d\u601d\u8003\uff01\u4eca\u5929\u5c0f\u7f16\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u68c0\u67e5 struct \u4e2d\u7684 int \u5b57\u6bb5\u662f\u5426\u4e3a nil\uff1f\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u5305\u542b<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60\u6216\u51c6\u5907\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\uff0c\u5c31\u90fd\u4e0d\u8981\u9519\u8fc7\u672c\u6587\u5566~\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff0c\u80fd\u5e2e\u52a9\u5230\u4f60\u5c31\u66f4\u597d\u4e86\uff01<\/span><\/p>\n<p> \u95ee\u9898\u5185\u5bb9<br \/>\n <\/p>\n<p>\u6211\u6709\u8fd9\u6bb5\u4ee3\u7801\uff0c\u5728\u5c06\u5176\u4f20\u9012\u7ed9\u6bd4\u8f83\u7ed3\u6784\u51fd\u6570\u4e4b\u524d\uff0c\u6211\u8bd5\u56fe\u68c0\u67e5 point.x\u3001point.y\u3001size.width\u3001size.height \u4e0a\u7684 nil\uff08\u5982\u679c\u6709 nil\uff0c\u5219\u8fd4\u56de\u9519\u8bef\uff09 \u3002\u6211\u603b\u662f\u5728\u5c1d\u8bd5\u5404\u79cd\u65b9\u6cd5\u65f6\u9047\u5230\u9519\u8bef\uff0c\u800c\u4e14\u6211\u4e0d\u7981\u8ba4\u4e3a\u6211\u5b8c\u5168\u662f\u60f3\u592a\u591a\u4e86\u3002<\/p>\n<p> <\/p>\n<h2>\u89e3\u51b3\u65b9\u6848<\/h2>\n<p> <\/p>\n<p>\u4f60\u4e0d\u80fd\u68c0\u67e5 nil\uff0c\u56e0\u4e3a int \u5728 Go \u4e2d\u4e0d\u53ef\u80fd\u662f nil\u3002\u5982\u679c\u60a8\u6ca1\u6709\u663e\u5f0f\u521d\u59cb\u5316\u5b83\uff0c\u5b83\u7684\u503c\u4e3a 0\u3002<\/p>\n<p>\u60a8\u5728\u4e00\u6761\u73b0\u5df2\u5220\u9664\u7684\u8bc4\u8bba\u4e2d\u8868\u793a\u62c5\u5fc3\uff0c\u60a8\u4f1a\u56e0\u6b64\u9047\u5230\u8fd0\u884c\u65f6\u9519\u8bef\u3002\u4f60\u4e0d\u4f1a\uff0c\u4f46\u4f60\u53ef\u80fd\u4e0d\u4f1a\u6709\u9884\u671f\u7684\u884c\u4e3a\u3002<\/p>\n<p>\u5982\u679c 0 \u5bf9\u4e8e\u60a8\u7684\u57df\u6765\u8bf4\u4e0d\u662f\u6709\u6548\u503c\uff0c\u60a8\u53ea\u9700\u68c0\u67e5 0 \u5373\u53ef\u3002<\/p>\n<p>\u5426\u5219\uff0c\u5982\u679c\u60a8\u60f3\u8ba9\u4e8b\u60c5\u53d8\u5f97\u66f4\u660e\u786e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u5176\u53ea\u80fd\u901a\u8fc7\u8c03\u7528\u60a8\u7f16\u5199\u7684\u51fd\u6570\u6765\u521d\u59cb\u5316\u503c\uff0c\u5e76\u4e14\u53ea\u80fd\u901a\u8fc7 getter \u516c\u5f00\u516c\u5f00\u8fd9\u4e9b\u503c\uff08\u4f7f\u503c\u4e0d\u53ef\u53d8\uff09\u3002<\/p>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8eGolang\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/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-207103","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207103","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=207103"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207103\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}