{"id":206744,"date":"2025-06-12T13:52:32","date_gmt":"2025-06-12T05:52:32","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206744\/"},"modified":"2025-06-12T13:52:32","modified_gmt":"2025-06-12T05:52:32","slug":"%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3-go-%e8%af%ad%e8%a8%80%e4%b8%ad%e7%bb%93%e6%9e%84%e4%bd%93-map-%e5%ad%97%e6%ae%b5%e7%9a%84%e8%87%aa%e5%8a%a8%e5%88%9d%e5%a7%8b%e5%8c%96%e9%97%ae%e9%a2%98%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206744\/","title":{"rendered":"\u5982\u4f55\u89e3\u51b3 GO \u8bed\u8a00\u4e2d\u7ed3\u6784\u4f53 Map \u5b57\u6bb5\u7684\u81ea\u52a8\u521d\u59cb\u5316\u95ee\u9898\uff1f"},"content":{"rendered":"

\u5077\u5077\u52aa\u529b\uff0c\u6084\u65e0\u58f0\u606f\u5730\u53d8\u5f3a\uff0c\u7136\u540e\u60ca\u8273\u6240\u6709\u4eba\uff01\u54c8\u54c8\uff0c\u5c0f\u4f19\u4f34\u4eec\u53c8\u6765\u5b66\u4e60\u5566~\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd
\n\u300a\u5982\u4f55\u89e3\u51b3 GO \u8bed\u8a00\u4e2d\u7ed3\u6784\u4f53 Map \u5b57\u6bb5\u7684\u81ea\u52a8\u521d\u59cb\u5316\u95ee\u9898\uff1f\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230
\n<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u4e0d\u77e5\u9053\u5927\u5bb6\u5bf9\u5176\u90fd\u6709\u591a\u5c11\u4e86\u89e3\uff0c\u4e0b\u9762\u6211\u4eec\u5c31\u4e00\u8d77\u6765\u770b\u4e00\u5427\uff01\u5f53\u7136\uff0c\u975e\u5e38\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u8bc4\u8bba\uff0c\u7ed9\u51fa\u5408\u7406\u7684\u5efa\u8bae\uff0c\u6211\u4eec\u4e00\u8d77\u5b66\u4e60\uff0c\u4e00\u8d77\u8fdb\u6b65\uff01,
\n,
\ngo \u8bed\u8a00\u4e2d\u7ed3\u6784\u4f53 map \u5b57\u6bb5\u7684\u81ea\u52a8\u521d\u59cb\u5316<\/strong>,\u5728 go \u8bed\u8a00\u4e2d\uff0c\u4f7f\u7528\u7ed3\u6784\u4f53\u65f6\uff0c\u5982\u679c\u5b57\u6bb5\u7c7b\u578b\u4e3a map\uff0c\u5728\u8fdb\u884c\u8d4b\u503c\u64cd\u4f5c\u65f6\u53ef\u80fd\u4f1a\u9047\u5230\u201cassignment to entry in nil map\u201d\u9519\u8bef\u3002\u8fd9\u8868\u660e\u5728\u8fdb\u884c\u8d4b\u503c\u4e4b\u524d\uff0cmap \u672a\u88ab\u521d\u59cb\u5316\u3002,\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a,\u4e00\u822c\u505a\u6cd5\u662f\u5b9a\u4e49\u4e00\u4e2a new \u51fd\u6570\u6765\u521d\u59cb\u5316\u7ed3\u6784\u4f53\uff0c\u786e\u4fdd map \u5b57\u6bb5\u88ab\u521d\u59cb\u5316\u3002\u4f8b\u5982\uff1a,\u5982\u679c\u662f\u53ef\u521d\u59cb\u5316\u4e3a zero value \u7684 map \u7c7b\u578b\uff0c\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u8d4b\u4e88 zero value \u7684\u65b9\u5f0f\u8fdb\u884c\u521d\u59cb\u5316\u3002\u4f8b\u5982\uff1a,\u5bf9\u4e8e\u4e0d\u53ef\u521d\u59cb\u5316\u4e3a zero value \u7684 map \u7c7b\u578b\uff0c\u53ef\u4ee5\u4f7f\u7528 make \u51fd\u6570\u6765\u521b\u5efa\u5e76\u521d\u59cb\u5316 map\u3002\u4f8b\u5982\uff1a,\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u89e3\u51b3 GO \u8bed\u8a00\u4e2d\u7ed3\u6784\u4f53 Map \u5b57\u6bb5\u7684\u81ea\u52a8\u521d\u59cb\u5316\u95ee\u9898\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,
\n\u4f7f\u7528 zero value<\/strong>,
\n\u4f7f\u7528 new \u51fd\u6570<\/strong>,go \u8bed\u8a00\u4e2d\u7ed3\u6784\u4f53 map \u5b57\u6bb5\u7684\u81ea\u52a8\u521d\u59cb\u5316,\u5077\u5077\u52aa\u529b\uff0c\u6084\u65e0\u58f0\u606f\u5730\u53d8\u5f3a\uff0c\u7136\u540e\u60ca\u8273\u6240\u6709\u4eba\uff01\u54c8\u54c8\uff0c\u5c0f\u4f19\u4f34\u4eec\u53c8\u6765\u5b66\u4e60\u5566~\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd
\n\u300a\u5982\u4f55\u89e3\u51b3 GO \u8bed\u8a00\u4e2d\u7ed3\u6784\u4f53 Map \u5b57\u6bb5\u7684\u81ea\u52a8\u521d\u59cb\u5316\u95ee\u9898\uff1f\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230
\n<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u4e0d\u77e5\u9053\u5927\u5bb6\u5bf9\u5176\u90fd\u6709\u591a\u5c11\u4e86\u89e3\uff0c\u4e0b\u9762\u6211\u4eec\u5c31\u4e00\u8d77\u6765\u770b\u4e00\u5427\uff01\u5f53\u7136\uff0c\u975e\u5e38\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u8bc4\u8bba\uff0c\u7ed9\u51fa\u5408\u7406\u7684\u5efa\u8bae\uff0c\u6211\u4eec\u4e00\u8d77\u5b66\u4e60\uff0c\u4e00\u8d77\u8fdb\u6b65\uff01,
\n<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5982\u4f55\u89e3\u51b3 GO \u8bed\u8a00\u4e2d\u7ed3\u6784\u4f53 Map \u5b57\u6bb5\u7684\u81ea\u52a8\u521d\u59cb\u5316\u95ee\u9898\uff1f<\/span><\/p>\n

\u5982\u4f55\u89e3\u51b3 GO \u8bed\u8a00\u4e2d\u7ed3\u6784\u4f53 Map \u5b57\u6bb5\u7684\u81ea\u52a8\u521d\u59cb\u5316\u95ee\u9898\uff1f<\/h1>\n

2024-11-21 15:34:06<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u5077\u5077\u52aa\u529b\uff0c\u6084\u65e0\u58f0\u606f\u5730\u53d8\u5f3a\uff0c\u7136\u540e\u60ca\u8273\u6240\u6709\u4eba\uff01\u54c8\u54c8\uff0c\u5c0f\u4f19\u4f34\u4eec\u53c8\u6765\u5b66\u4e60\u5566~\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u300a\u5982\u4f55\u89e3\u51b3 GO \u8bed\u8a00\u4e2d\u7ed3\u6784\u4f53 Map \u5b57\u6bb5\u7684\u81ea\u52a8\u521d\u59cb\u5316\u95ee\u9898\uff1f\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u4e0d\u77e5\u9053\u5927\u5bb6\u5bf9\u5176\u90fd\u6709\u591a\u5c11\u4e86\u89e3\uff0c\u4e0b\u9762\u6211\u4eec\u5c31\u4e00\u8d77\u6765\u770b\u4e00\u5427\uff01\u5f53\u7136\uff0c\u975e\u5e38\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u8bc4\u8bba\uff0c\u7ed9\u51fa\u5408\u7406\u7684\u5efa\u8bae\uff0c\u6211\u4eec\u4e00\u8d77\u5b66\u4e60\uff0c\u4e00\u8d77\u8fdb\u6b65\uff01<\/p>\n

<\/p>\n

go \u8bed\u8a00\u4e2d\u7ed3\u6784\u4f53 map \u5b57\u6bb5\u7684\u81ea\u52a8\u521d\u59cb\u5316<\/strong><\/p>\n

\u5728 go \u8bed\u8a00\u4e2d\uff0c\u4f7f\u7528\u7ed3\u6784\u4f53\u65f6\uff0c\u5982\u679c\u5b57\u6bb5\u7c7b\u578b\u4e3a map\uff0c\u5728\u8fdb\u884c\u8d4b\u503c\u64cd\u4f5c\u65f6\u53ef\u80fd\u4f1a\u9047\u5230\u201cassignment to entry in nil map\u201d\u9519\u8bef\u3002\u8fd9\u8868\u660e\u5728\u8fdb\u884c\u8d4b\u503c\u4e4b\u524d\uff0cmap \u672a\u88ab\u521d\u59cb\u5316\u3002<\/p>\n

\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n

    \n
  • \u4f7f\u7528 new \u51fd\u6570<\/strong><\/li>\n<\/ul>\n

    \u4e00\u822c\u505a\u6cd5\u662f\u5b9a\u4e49\u4e00\u4e2a new \u51fd\u6570\u6765\u521d\u59cb\u5316\u7ed3\u6784\u4f53\uff0c\u786e\u4fdd map \u5b57\u6bb5\u88ab\u521d\u59cb\u5316\u3002\u4f8b\u5982\uff1a<\/p>\n

    func newtrie() *trie {\n    return &trie{\n        true,\n        map[rune]*trie{},\n    }\n}<\/pre>\n
      \n
    • \u4f7f\u7528 zero value<\/strong><\/li>\n<\/ul>\n
      \u5982\u679c\u662f\u53ef\u521d\u59cb\u5316\u4e3a zero value \u7684 map \u7c7b\u578b\uff0c\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u8d4b\u4e88 zero value \u7684\u65b9\u5f0f\u8fdb\u884c\u521d\u59cb\u5316\u3002\u4f8b\u5982\uff1a<\/p>\n
      type trie struct {\n    isend    bool\n    children map[rune]*trie\n}\n\nroot := trie{\n    isend:    true,\n    children: map[rune]*trie{},\n}<\/pre>\n
        \n
      • \u4f7f\u7528 make \u51fd\u6570<\/strong><\/li>\n<\/ul>\n
        \u5bf9\u4e8e\u4e0d\u53ef\u521d\u59cb\u5316\u4e3a zero value \u7684 map \u7c7b\u578b\uff0c\u53ef\u4ee5\u4f7f\u7528 make \u51fd\u6570\u6765\u521b\u5efa\u5e76\u521d\u59cb\u5316 map\u3002\u4f8b\u5982\uff1a<\/p>\n
        root := Trie{\n    isEnd:    true,\n    children: make(map[rune]*Trie),\n}<\/pre>\n
        \u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u89e3\u51b3 GO \u8bed\u8a00\u4e2d\u7ed3\u6784\u4f53 Map \u5b57\u6bb5\u7684\u81ea\u52a8\u521d\u59cb\u5316\u95ee\u9898\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
        \n
        \n <\/dt>\n
        \n   \u5982\u4f55\u901a\u8fc7\u7535\u8111\u8f7b\u677e\u8bc6\u66f2\uff1a\u8ba9\u97f3\u4e50\u4e0e\u79d1\u6280\u5b8c\u7f8e\u7ed3\u5408\n <\/dd>\n<\/dl>\n
        \n
        \n <\/dt>\n
        \n   Vue3 computed \u5c5e\u6027\u76f8\u4e92\u4f9d\u8d56\u5bfc\u81f4\u6808\u6ea2\u51fa\uff1f\u5982\u4f55\u89e3\u51b3\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
        \u5077\u5077\u52aa\u529b\uff0c\u6084\u65e0\u58f0\u606f\u5730\u53d8\u5f3a\uff0c\u7136\u540e\u60ca...<\/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-206744","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206744","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=206744"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206744\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206744"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206744"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}