{"id":205852,"date":"2025-06-12T12:30:50","date_gmt":"2025-06-12T04:30:50","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205852\/"},"modified":"2025-06-12T12:30:50","modified_gmt":"2025-06-12T04:30:50","slug":"%e5%a6%82%e4%bd%95%e6%8f%90%e5%8d%87-go-%e4%b8%ad%e6%96%87%e6%9c%ac%e5%8e%bb%e9%87%8d%e4%bb%a3%e7%a0%81%e7%9a%84%e6%80%a7%e8%83%bd%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205852\/","title":{"rendered":"\u5982\u4f55\u63d0\u5347 Go \u4e2d\u6587\u672c\u53bb\u91cd\u4ee3\u7801\u7684\u6027\u80fd\uff1f"},"content":{"rendered":"

\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u52aa\u529b\u5b66\u4e60\u5427\uff01\u672c\u6587
\n\u300a\u5982\u4f55\u63d0\u5347 Go \u4e2d\u6587\u672c\u53bb\u91cd\u4ee3\u7801\u7684\u6027\u80fd\uff1f\u300b<\/span>\u4e3b\u8981\u8bb2\u89e3\u4e86
\n<\/span>\u7b49\u7b49\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6211\u4f1a\u5728GOLANG\u4e2d\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u7684\u7cfb\u5217\u6587\u7ae0\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u5e76\u79ef\u6781\u7559\u8a00\u5efa\u8bae\u3002\u4e0b\u9762\u5c31\u5148\u4e00\u8d77\u6765\u770b\u4e00\u4e0b\u672c\u7bc7\u6b63\u6587\u5185\u5bb9\u5427\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01,
\n,
\n\u4f18\u5316 go \u4e2d\u6587\u672c\u53bb\u91cd\u4ee3\u7801<\/strong>,\u60a8\u63d0\u4f9b\u7684\u6587\u672c\u53bb\u91cd\u4ee3\u7801\u5b58\u5728\u4e00\u4e9b\u53ef\u4f18\u5316\u4e4b\u5904\uff0c\u53ef\u4ee5\u663e\u7740\u63d0\u5347\u5904\u7406\u901f\u5ea6\u3002,
\n1. \u4f7f\u7528 strings.builder \u63d0\u5347\u5b57\u7b26\u4e32\u62fc\u63a5\u6027\u80fd<\/strong>,\u539f\u4ee3\u7801\u4e2d\u4f7f\u7528\u5b57\u7b26\u4e32\u62fc\u63a5\u6765\u6784\u5efa\u53bb\u91cd\u7ed3\u679c\u3002\u8fd9\u5728\u5904\u7406\u5927\u91cf\u6570\u636e\u65f6\u6548\u7387\u8f83\u4f4e\uff0c\u56e0\u4e3a\u6bcf\u6b21\u62fc\u63a5\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u526f\u672c\u3002\u63a8\u8350\u6539\u7528 strings.builder \u6765\u9ad8\u6548\u5730\u6784\u5efa\u5b57\u7b26\u4e32\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5185\u5b58\u5206\u914d\u548c\u590d\u5236\u3002,\u4f18\u5316\u540e\u4ee3\u7801\uff1a,
\n2. \u9884\u5206\u914dmap \u7a7a\u95f4\u51cf\u5c11\u6269\u5bb9<\/strong>,\u5b58\u50a8\u53bb\u91cd\u7ed3\u679c\u7684map \u4f7f\u7528\u4e86make(map[string ]bool, 0)\uff0c\u76f8\u5f53\u4e8e\u9884\u5206\u914d\u4e860 \u4e2a\u7a7a\u95f4\u3002\u968f\u7740\u6570\u636e\u91cf\u7684\u589e\u52a0\uff0cmap \u9700\u8981\u4e0d\u65ad\u6269\u5bb9\uff0c\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u63a8\u8350\u9884\u5206\u914d\u4e00\u4e2a\u8f83\u5927\u7684\u7a7a\u95f4\uff0c\u4f8b\u5982 1000\uff0c\u4ee5\u51cf\u5c11\u6269\u5bb9\u9891\u7387\u3002,\u4f18\u5316\u540e\u4ee3\u7801\uff1a,\u901a\u8fc7\u4ee5\u4e0a\u4f18\u5316\uff0c\u60a8\u7684\u4ee3\u7801\u6027\u80fd\u5c06\u5f97\u5230\u663e\u7740\u63d0\u5347\u3002\u4f18\u5316\u540e\u7684\u4ee3\u7801\u5982\u4e0b\uff1a,\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u63d0\u5347 Go \u4e2d\u6587\u672c\u53bb\u91cd\u4ee3\u7801\u7684\u6027\u80fd\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,\u4f18\u5316 go \u4e2d\u6587\u672c\u53bb\u91cd\u4ee3\u7801,\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u52aa\u529b\u5b66\u4e60\u5427\uff01\u672c\u6587
\n\u300a\u5982\u4f55\u63d0\u5347 Go \u4e2d\u6587\u672c\u53bb\u91cd\u4ee3\u7801\u7684\u6027\u80fd\uff1f\u300b<\/span>\u4e3b\u8981\u8bb2\u89e3\u4e86
\n<\/span>\u7b49\u7b49\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6211\u4f1a\u5728GOLANG\u4e2d\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u7684\u7cfb\u5217\u6587\u7ae0\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u5e76\u79ef\u6781\u7559\u8a00\u5efa\u8bae\u3002\u4e0b\u9762\u5c31\u5148\u4e00\u8d77\u6765\u770b\u4e00\u4e0b\u672c\u7bc7\u6b63\u6587\u5185\u5bb9\u5427\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01,
\n<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5982\u4f55\u63d0\u5347 Go \u4e2d\u6587\u672c\u53bb\u91cd\u4ee3\u7801\u7684\u6027\u80fd\uff1f<\/span><\/p>\n

\u5982\u4f55\u63d0\u5347 Go \u4e2d\u6587\u672c\u53bb\u91cd\u4ee3\u7801\u7684\u6027\u80fd\uff1f<\/h1>\n

2024-10-27 16:58:06<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u52aa\u529b\u5b66\u4e60\u5427\uff01\u672c\u6587\u300a\u5982\u4f55\u63d0\u5347 Go \u4e2d\u6587\u672c\u53bb\u91cd\u4ee3\u7801\u7684\u6027\u80fd\uff1f\u300b<\/span>\u4e3b\u8981\u8bb2\u89e3\u4e86<\/span>\u7b49\u7b49\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6211\u4f1a\u5728GOLANG\u4e2d\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u7684\u7cfb\u5217\u6587\u7ae0\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u5e76\u79ef\u6781\u7559\u8a00\u5efa\u8bae\u3002\u4e0b\u9762\u5c31\u5148\u4e00\u8d77\u6765\u770b\u4e00\u4e0b\u672c\u7bc7\u6b63\u6587\u5185\u5bb9\u5427\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n

<\/p>\n

\u4f18\u5316 go \u4e2d\u6587\u672c\u53bb\u91cd\u4ee3\u7801<\/strong><\/p>\n

\u60a8\u63d0\u4f9b\u7684\u6587\u672c\u53bb\u91cd\u4ee3\u7801\u5b58\u5728\u4e00\u4e9b\u53ef\u4f18\u5316\u4e4b\u5904\uff0c\u53ef\u4ee5\u663e\u7740\u63d0\u5347\u5904\u7406\u901f\u5ea6\u3002 <\/p>\n

1. \u4f7f\u7528 strings.builder \u63d0\u5347\u5b57\u7b26\u4e32\u62fc\u63a5\u6027\u80fd<\/strong><\/p>\n

\u539f\u4ee3\u7801\u4e2d\u4f7f\u7528\u5b57\u7b26\u4e32\u62fc\u63a5\u6765\u6784\u5efa\u53bb\u91cd\u7ed3\u679c\u3002\u8fd9\u5728\u5904\u7406\u5927\u91cf\u6570\u636e\u65f6\u6548\u7387\u8f83\u4f4e\uff0c\u56e0\u4e3a\u6bcf\u6b21\u62fc\u63a5\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u526f\u672c\u3002\u63a8\u8350\u6539\u7528 strings.builder \u6765\u9ad8\u6548\u5730\u6784\u5efa\u5b57\u7b26\u4e32\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5185\u5b58\u5206\u914d\u548c\u590d\u5236\u3002 <\/p>\n

\u4f18\u5316\u540e\u4ee3\u7801\uff1a<\/p>\n

var result strings.builder<\/pre>\n
2. \u9884\u5206\u914dmap \u7a7a\u95f4\u51cf\u5c11\u6269\u5bb9<\/strong><\/p>\n
\u5b58\u50a8\u53bb\u91cd\u7ed3\u679c\u7684map \u4f7f\u7528\u4e86make(map[string ]bool, 0)\uff0c\u76f8\u5f53\u4e8e\u9884\u5206\u914d\u4e860 \u4e2a\u7a7a\u95f4\u3002\u968f\u7740\u6570\u636e\u91cf\u7684\u589e\u52a0\uff0cmap \u9700\u8981\u4e0d\u65ad\u6269\u5bb9\uff0c\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u63a8\u8350\u9884\u5206\u914d\u4e00\u4e2a\u8f83\u5927\u7684\u7a7a\u95f4\uff0c\u4f8b\u5982 1000\uff0c\u4ee5\u51cf\u5c11\u6269\u5bb9\u9891\u7387\u3002 <\/p>\n
\u4f18\u5316\u540e\u4ee3\u7801\uff1a<\/p>\n
var set = make(map[string]struct{}, 1000)<\/pre>\n
\u901a\u8fc7\u4ee5\u4e0a\u4f18\u5316\uff0c\u60a8\u7684\u4ee3\u7801\u6027\u80fd\u5c06\u5f97\u5230\u663e\u7740\u63d0\u5347\u3002\u4f18\u5316\u540e\u7684\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
package distinct\n\nimport (\n    \"bufio\"\n    \"fmt\"\n    \"io\"\n    \"os\"\n    \"strconv\"\n    \"strings\"\n)\n\n\/\/DistinctFile \u4e3a\u6307\u5b9a\u6587\u4ef6\u53bb\u91cd\nfunc DistinctFile(file string, output string) {\n    \/\/ \u8bfb\u53d6\u9700\u8981\u53bb\u91cd\u7684\u6587\u4ef6\u5185\u5bb9\n    f, _ := os.Open(file)\n    defer func() {\n        ferr := f.Close()\n        if ferr != nil {\n            fmt.Println(ferr.Error())\n        }\n    }()\n\n    reader := bufio.NewReader(f)\n\n    \/\/ \u53bb\u91cdmap\n    var set = make(map[string]struct{}, 1000)\n    \/\/ \u53bb\u91cd\u540e\u7684\u7ed3\u679c\n    var result strings.Builder\n\n    for {\n        line, isPrefix, err := reader.ReadLine()\n\n        if err != nil {\n            break\n        }\n\n        if !isPrefix {\n            lineStr := string(line)\n\n            \/\/ key\u5b58\u5728\u5219\u8df3\u51fa\u672c\u6b21\u5faa\u73af\n            if _, ok := set[lineStr]; ok {\n                continue\n            }\n\n            result.WriteString(fmt.Sprintf(\"%s\\n\", lineStr))\n\n            set[lineStr] = struct{}{}\n        }\n    }\n\n    \/\/ \u5199\u5165\u53e6\u4e00\u4e2a\u6587\u4ef6\n    nf, _ := os.Create(output)\n    io.Copy(nf, strings.NewReader(result.String()))\n\n    defer nf.Close()\n}<\/pre>\n
\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u63d0\u5347 Go \u4e2d\u6587\u672c\u53bb\u91cd\u4ee3\u7801\u7684\u6027\u80fd\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   Java \u4e2d\u7684\u7c7b\u578b\u53c2\u6570\u7684\u5177\u4f53\u542b\u4e49\u662f\u4ec0\u4e48\uff1f\n <\/dd>\n<\/dl>\n
\n
\n <\/dt>\n
\n   PHP\u51fd\u6570\u5982\u4f55\u63a5\u6536\u5bf9\u8c61\u53c2\u6570\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u52aa\u529b\u5b66\u4e60\u5427\uff01\u672c\u6587 \u300a...<\/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-205852","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205852","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=205852"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205852\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}