{"id":206431,"date":"2025-06-12T11:40:32","date_gmt":"2025-06-12T03:40:32","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206431\/"},"modified":"2025-06-12T11:40:32","modified_gmt":"2025-06-12T03:40:32","slug":"go-%e8%af%ad%e8%a8%80%e7%bb%93%e6%9e%84%e4%bd%93-map-%e5%ad%97%e6%ae%b5%e5%a6%82%e4%bd%95%e9%81%bf%e5%85%8d%e5%88%9d%e5%a7%8b%e5%8c%96%e6%97%b6%e7%9a%84-panic-%e9%94%99%e8%af%af%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206431\/","title":{"rendered":"Go \u8bed\u8a00\u7ed3\u6784\u4f53 map \u5b57\u6bb5\u5982\u4f55\u907f\u514d\u521d\u59cb\u5316\u65f6\u7684 panic \u9519\u8bef\uff1f"},"content":{"rendered":"<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u8bed\u8a00\u7ed3\u6784\u4f53 map \u5b57\u6bb5\u5982\u4f55\u907f\u514d\u521d\u59cb\u5316\u65f6\u7684 panic \u9519\u8bef\uff1f \u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241111\/173133670467321a00f19b6.jpg\" class=\"aligncenter\">,<br \/>\n<strong>go \u8bed\u8a00\u7ed3\u6784\u4f53 map \u5b57\u6bb5\u81ea\u52a8\u521d\u59cb\u5316<\/strong>,\u5728 go \u8bed\u8a00\u4e2d\uff0c\u7ed3\u6784\u4f53\u7684 map \u5b57\u6bb5\u5728\u521d\u59cb\u5316\u65f6\u53ef\u80fd\u4e3a\u7a7a\uff0c\u5bfc\u81f4\u5bf9\u5176\u8fdb\u884c\u64cd\u4f5c\u65f6\u51fa\u73b0 panic \u9519\u8bef\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5c1d\u8bd5\u5411\u4e00\u4e2a trie \u7ed3\u6784\u4f53\u7684 children map \u4e2d\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u5143\u7d20\uff1a,\u8fd9\u5c06\u5bfc\u81f4\u4ee5\u4e0b\u9519\u8bef\uff1a,\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u53ef\u4ee5\u5728\u521d\u59cb\u5316\u7ed3\u6784\u4f53\u65f6\u660e\u786e\u521d\u59cb\u5316 map \u5b57\u6bb5\u3002\u7136\u800c\uff0c\u8fd9\u9700\u8981\u660e\u786e\u68c0\u67e5 map \u662f\u5426\u4e3a\u7a7a\uff0c\u7136\u540e\u518d\u5bf9\u5176\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u5982\u4e0b\u6240\u793a\uff1a,\u4e00\u79cd\u66f4\u4f18\u96c5\u7684\u505a\u6cd5\u662f\u521b\u5efa\u5de5\u5382\u51fd\u6570\uff0c\u5728\u521b\u5efa\u7ed3\u6784\u4f53\u65f6\u81ea\u52a8\u521d\u59cb\u5316 map \u5b57\u6bb5\u3002\u5bf9\u4e8e trie \u7ed3\u6784\u4f53\uff0c\u53ef\u4ee5\u5b9a\u4e49\u4ee5\u4e0b\u5de5\u5382\u51fd\u6570\uff1a,\u7136\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u521d\u59cb\u5316 trie \u7ed3\u6784\u4f53\uff1a,\u8fd9\u6837\uff0c\u65e0\u9700\u624b\u52a8\u521d\u59cb\u5316 map \u5b57\u6bb5\uff0c\u5373\u53ef\u5411 children map \u4e2d\u6dfb\u52a0\u5143\u7d20\u3002,\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aGo \u8bed\u8a00\u7ed3\u6784\u4f53 map \u5b57\u6bb5\u5982\u4f55\u907f\u514d\u521d\u59cb\u5316\u65f6\u7684 panic \u9519\u8bef\uff1f \u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591aGOLANG\u77e5\u8bc6\uff01,go \u8bed\u8a00\u7ed3\u6784\u4f53 map \u5b57\u6bb5\u81ea\u52a8\u521d\u59cb\u5316,\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u8bed\u8a00\u7ed3\u6784\u4f53 map \u5b57\u6bb5\u5982\u4f55\u907f\u514d\u521d\u59cb\u5316\u65f6\u7684 panic \u9519\u8bef\uff1f \u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01,<br \/>\n<b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span> <span>Go \u8bed\u8a00\u7ed3\u6784\u4f53 map \u5b57\u6bb5\u5982\u4f55\u907f\u514d\u521d\u59cb\u5316\u65f6\u7684 panic \u9519\u8bef\uff1f <\/span><\/p>\n<h1>Go \u8bed\u8a00\u7ed3\u6784\u4f53 map \u5b57\u6bb5\u5982\u4f55\u907f\u514d\u521d\u59cb\u5316\u65f6\u7684 panic \u9519\u8bef\uff1f <\/h1>\n<p><span>2024-11-11 22:52:00<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u8bed\u8a00\u7ed3\u6784\u4f53 map \u5b57\u6bb5\u5982\u4f55\u907f\u514d\u521d\u59cb\u5316\u65f6\u7684 panic \u9519\u8bef\uff1f \u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241111\/173133670467321a00f19b6.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>go \u8bed\u8a00\u7ed3\u6784\u4f53 map \u5b57\u6bb5\u81ea\u52a8\u521d\u59cb\u5316<\/strong><\/p>\n<p>\u5728 go \u8bed\u8a00\u4e2d\uff0c\u7ed3\u6784\u4f53\u7684 map \u5b57\u6bb5\u5728\u521d\u59cb\u5316\u65f6\u53ef\u80fd\u4e3a\u7a7a\uff0c\u5bfc\u81f4\u5bf9\u5176\u8fdb\u884c\u64cd\u4f5c\u65f6\u51fa\u73b0 panic \u9519\u8bef\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5c1d\u8bd5\u5411\u4e00\u4e2a trie \u7ed3\u6784\u4f53\u7684 children map \u4e2d\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u5143\u7d20\uff1a<\/p>\n<pre>type trie struct {\n    isend    bool\n    children map[rune]*trie\n}\n\nroot := trie{}\nif root.children['a'] == nil {\n    root.children['a'] = &amp;trie{}\n}<\/pre>\n<p>\u8fd9\u5c06\u5bfc\u81f4\u4ee5\u4e0b\u9519\u8bef\uff1a<\/p>\n<pre>panic: assignment to entry in nil map<\/pre>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u53ef\u4ee5\u5728\u521d\u59cb\u5316\u7ed3\u6784\u4f53\u65f6\u660e\u786e\u521d\u59cb\u5316 map \u5b57\u6bb5\u3002\u7136\u800c\uff0c\u8fd9\u9700\u8981\u660e\u786e\u68c0\u67e5 map \u662f\u5426\u4e3a\u7a7a\uff0c\u7136\u540e\u518d\u5bf9\u5176\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre>root := trie{}\nif len(root.children) == 0 {\n    root.children = map[rune]*trie{}\n}\nif root.children['a'] == nil {\n    root.children['a'] = &amp;trie{}\n}<\/pre>\n<p>\u4e00\u79cd\u66f4\u4f18\u96c5\u7684\u505a\u6cd5\u662f\u521b\u5efa\u5de5\u5382\u51fd\u6570\uff0c\u5728\u521b\u5efa\u7ed3\u6784\u4f53\u65f6\u81ea\u52a8\u521d\u59cb\u5316 map \u5b57\u6bb5\u3002\u5bf9\u4e8e trie \u7ed3\u6784\u4f53\uff0c\u53ef\u4ee5\u5b9a\u4e49\u4ee5\u4e0b\u5de5\u5382\u51fd\u6570\uff1a<\/p>\n<pre>func newtrie() *trie {\n    return &amp;trie{\n        true,\n        map[rune]*trie{}\n    }\n}<\/pre>\n<p>\u7136\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u521d\u59cb\u5316 trie \u7ed3\u6784\u4f53\uff1a<\/p>\n<pre>root := NewTrie()<\/pre>\n<p>\u8fd9\u6837\uff0c\u65e0\u9700\u624b\u52a8\u521d\u59cb\u5316 map \u5b57\u6bb5\uff0c\u5373\u53ef\u5411 children map \u4e2d\u6dfb\u52a0\u5143\u7d20\u3002<\/p>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aGo \u8bed\u8a00\u7ed3\u6784\u4f53 map \u5b57\u6bb5\u5982\u4f55\u907f\u514d\u521d\u59cb\u5316\u65f6\u7684 panic \u9519\u8bef\uff1f \u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591aGOLANG\u77e5\u8bc6\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   Migrar de SQLite a MySQL\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u901a\u8fc7\u4fee\u6539 dialog \u7ec4\u4ef6\u4ee3\u7801\uff0c\u4ec5\u5728\u7ec4\u4ef6\u5185\u63a7\u5236\u5f39\u7a97\u7684\u663e\u793a\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9&#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-206431","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206431","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=206431"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206431\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206431"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206431"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}