{"id":206519,"date":"2025-06-12T09:25:00","date_gmt":"2025-06-12T01:25:00","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206519\/"},"modified":"2025-06-12T09:25:00","modified_gmt":"2025-06-12T01:25:00","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-go-%e7%bb%93%e6%9e%84%e4%bd%93%e7%9a%84-map-%e5%ad%97%e6%ae%b5%e4%b8%ad%e4%bc%98%e9%9b%85%e5%9c%b0%e8%87%aa%e5%8a%a8%e5%88%9d%e5%a7%8b%e5%8c%96%e5%80%bc%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206519\/","title":{"rendered":"\u5982\u4f55\u5728 Go \u7ed3\u6784\u4f53\u7684 map \u5b57\u6bb5\u4e2d\u4f18\u96c5\u5730\u81ea\u52a8\u521d\u59cb\u5316\u503c\uff1f"},"content":{"rendered":"<p>\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300a\u5982\u4f55\u5728 Go \u7ed3\u6784\u4f53\u7684 map \u5b57\u6bb5\u4e2d\u4f18\u96c5\u5730\u81ea\u52a8\u521d\u59cb\u5316\u503c\uff1f\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241114\/17315516306735618e9b2e9.jpg\" class=\"aligncenter\">,<br \/>\n<strong>\u5982\u4f55\u4f18\u96c5\u5730\u5728 go \u7ed3\u6784\u4f53\u7684 map \u5b57\u6bb5\u4e2d\u81ea\u52a8\u521d\u59cb\u5316\u503c<\/strong>,\u5728 go \u4e2d\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5305\u542b map \u5b57\u6bb5\u7684\u7ed3\u6784\u4f53\uff0c\u5982\u4e0b\uff1a,\u5f53\u521d\u59cb\u5316\u4e00\u4e2a trie \u53d8\u91cf\u65f6\uff0c\u5982\u679c\u67d0\u4e2a children \u4e3a\u7a7a\uff0c\u5728\u5c1d\u8bd5\u8d4b\u503c\u65f6\u53ef\u80fd\u4f1a\u5f15\u53d1 panic \u9519\u8bef\u3002\u4e00\u79cd\u5e38\u89c1\u7684\u505a\u6cd5\u662f\u5148\u68c0\u67e5 map \u662f\u5426\u88ab\u521d\u59cb\u5316\uff0c\u518d\u8fdb\u884c\u8d4b\u503c\u3002,\u7136\u800c\uff0c\u4e00\u79cd\u66f4\u4f18\u96c5\u7684\u65b9\u6cd5\u662f\u5b9a\u4e49\u4e00\u4e2a\u6784\u9020\u51fd\u6570 newtrie\uff0c\u5b83\u8d1f\u8d23\u521b\u5efa\u548c\u521d\u59cb\u5316\u8be5\u7ed3\u6784\u4f53\uff1a,\u73b0\u5728\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7 newtrie \u51fd\u6570\u6765\u521b\u5efa trie \u5b9e\u4f8b\uff0c\u8fd9\u5c06\u81ea\u52a8\u521d\u59cb\u5316 children map\uff1a,\u8fd9\u79cd\u65b9\u6cd5\u7684\u597d\u5904\u5728\u4e8e\uff0c\u5b83\u5c06\u521d\u59cb\u5316\u903b\u8f91\u4e0e\u7ed3\u6784\u4f53\u672c\u8eab\u5206\u79bb\u5f00\u6765\uff0c\u4f7f\u4ee3\u7801\u66f4\u52a0\u7b80\u6d01\u548c\u53ef\u8bfb\u3002\u540c\u65f6\uff0c\u5b83\u8fd8\u786e\u4fdd children map \u5728\u9996\u6b21\u5c1d\u8bd5\u8bbf\u95ee\u4e4b\u524d\u59cb\u7ec8\u88ab\u521d\u59cb\u5316\uff0c\u4ece\u800c\u907f\u514d\u4e86\u6f5c\u5728\u7684\u9519\u8bef\u3002,\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u5728 Go \u7ed3\u6784\u4f53\u7684 map \u5b57\u6bb5\u4e2d\u4f18\u96c5\u5730\u81ea\u52a8\u521d\u59cb\u5316\u503c\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01,\u5982\u4f55\u4f18\u96c5\u5730\u5728 go \u7ed3\u6784\u4f53\u7684 map \u5b57\u6bb5\u4e2d\u81ea\u52a8\u521d\u59cb\u5316\u503c,\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300a\u5982\u4f55\u5728 Go \u7ed3\u6784\u4f53\u7684 map \u5b57\u6bb5\u4e2d\u4f18\u96c5\u5730\u81ea\u52a8\u521d\u59cb\u5316\u503c\uff1f\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002,<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>\u5982\u4f55\u5728 Go \u7ed3\u6784\u4f53\u7684 map \u5b57\u6bb5\u4e2d\u4f18\u96c5\u5730\u81ea\u52a8\u521d\u59cb\u5316\u503c\uff1f<\/span><\/p>\n<h1>\u5982\u4f55\u5728 Go \u7ed3\u6784\u4f53\u7684 map \u5b57\u6bb5\u4e2d\u4f18\u96c5\u5730\u81ea\u52a8\u521d\u59cb\u5316\u503c\uff1f<\/h1>\n<p><span>2024-11-14 10:34:06<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300a\u5982\u4f55\u5728 Go \u7ed3\u6784\u4f53\u7684 map \u5b57\u6bb5\u4e2d\u4f18\u96c5\u5730\u81ea\u52a8\u521d\u59cb\u5316\u503c\uff1f\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241114\/17315516306735618e9b2e9.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u5982\u4f55\u4f18\u96c5\u5730\u5728 go \u7ed3\u6784\u4f53\u7684 map \u5b57\u6bb5\u4e2d\u81ea\u52a8\u521d\u59cb\u5316\u503c<\/strong><\/p>\n<p>\u5728 go \u4e2d\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5305\u542b map \u5b57\u6bb5\u7684\u7ed3\u6784\u4f53\uff0c\u5982\u4e0b\uff1a<\/p>\n<pre>type trie struct {\n    isend    bool\n    children map[rune]*trie\n}<\/pre>\n<p>\u5f53\u521d\u59cb\u5316\u4e00\u4e2a trie \u53d8\u91cf\u65f6\uff0c\u5982\u679c\u67d0\u4e2a children \u4e3a\u7a7a\uff0c\u5728\u5c1d\u8bd5\u8d4b\u503c\u65f6\u53ef\u80fd\u4f1a\u5f15\u53d1 panic \u9519\u8bef\u3002\u4e00\u79cd\u5e38\u89c1\u7684\u505a\u6cd5\u662f\u5148\u68c0\u67e5 map \u662f\u5426\u88ab\u521d\u59cb\u5316\uff0c\u518d\u8fdb\u884c\u8d4b\u503c\u3002<\/p>\n<pre>root := trie{}\nif len(root.children) == 0 {\n    root.children = map[rune]*trie{}\n}<\/pre>\n<p>\u7136\u800c\uff0c\u4e00\u79cd\u66f4\u4f18\u96c5\u7684\u65b9\u6cd5\u662f\u5b9a\u4e49\u4e00\u4e2a\u6784\u9020\u51fd\u6570 newtrie\uff0c\u5b83\u8d1f\u8d23\u521b\u5efa\u548c\u521d\u59cb\u5316\u8be5\u7ed3\u6784\u4f53\uff1a<\/p>\n<pre>func newtrie() *trie {\n    return &amp;trie{\n        true,\n        map[rune]*trie{},\n    }\n}<\/pre>\n<p>\u73b0\u5728\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7 newtrie \u51fd\u6570\u6765\u521b\u5efa trie \u5b9e\u4f8b\uff0c\u8fd9\u5c06\u81ea\u52a8\u521d\u59cb\u5316 children map\uff1a<\/p>\n<pre>root := NewTrie()<\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u7684\u597d\u5904\u5728\u4e8e\uff0c\u5b83\u5c06\u521d\u59cb\u5316\u903b\u8f91\u4e0e\u7ed3\u6784\u4f53\u672c\u8eab\u5206\u79bb\u5f00\u6765\uff0c\u4f7f\u4ee3\u7801\u66f4\u52a0\u7b80\u6d01\u548c\u53ef\u8bfb\u3002\u540c\u65f6\uff0c\u5b83\u8fd8\u786e\u4fdd children map \u5728\u9996\u6b21\u5c1d\u8bd5\u8bbf\u95ee\u4e4b\u524d\u59cb\u7ec8\u88ab\u521d\u59cb\u5316\uff0c\u4ece\u800c\u907f\u514d\u4e86\u6f5c\u5728\u7684\u9519\u8bef\u3002<\/p>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u5728 Go \u7ed3\u6784\u4f53\u7684 map \u5b57\u6bb5\u4e2d\u4f18\u96c5\u5730\u81ea\u52a8\u521d\u59cb\u5316\u503c\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   Goland \u51fd\u6570\u5b9a\u4e49\u51fa\u73b0\u201c\u672a\u89e3\u6790\u5f15\u7528\u201d\u600e\u4e48\u529e\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   Go \u8bed\u8a00\u4e2d defer \u51fd\u6570\u4e0e\u8fd4\u56de\u503c\uff1a\u4e3a\u4ec0\u4e48 f0 \u8fd4\u56de 0 \u4f46\u6253\u5370\u7ed3\u679c\u4e3a 1\uff0cf1 \u672a\u660e\u786e\u8fd4\u56de\u503c\u5374\u6253\u5370\u51fa 0\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300a\u5982\u4f55\u5728 Go&#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-206519","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206519","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=206519"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206519\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206519"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206519"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}