{"id":206404,"date":"2025-06-12T10:14:41","date_gmt":"2025-06-12T02:14:41","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206404\/"},"modified":"2025-06-12T10:14:41","modified_gmt":"2025-06-12T02:14:41","slug":"go-%e4%b8%ad%e7%9a%84-byte-%e5%92%8c-rune%ef%bc%9a%e4%b8%ba%e4%bb%80%e4%b9%88%e5%8f%af%e4%bb%a5%e7%94%a8%e5%ad%97%e8%8a%82%e7%b1%bb%e5%9e%8b%e6%af%94%e8%be%83%e5%ad%97%e7%ac%a6%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206404\/","title":{"rendered":"Go \u4e2d\u7684 `byte` \u548c `rune`\uff1a\u4e3a\u4ec0\u4e48\u53ef\u4ee5\u7528\u5b57\u8282\u7c7b\u578b\u6bd4\u8f83\u5b57\u7b26\uff1f"},"content":{"rendered":"<p>GOLANG\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u4e2d\u7684 `byte` \u548c `rune`\uff1a\u4e3a\u4ec0\u4e48\u53ef\u4ee5\u7528\u5b57\u8282\u7c7b\u578b\u6bd4\u8f83\u5b57\u7b26\uff1f\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\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\u4f60\u662f\u6b63\u5728\u5b66\u4e60<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241111\/17313109696731b57951888.jpg\" class=\"aligncenter\">,<br \/>\n<strong>\u7406\u89e3 go \u8bed\u8a00\u4e2d\u7684 byte \u548c rune<\/strong>,\u5728 go \u8bed\u8a00\u4e2d\uff0c\u201cbyte\u201d\u548c\u201crune\u201d\u662f\u4e24\u79cd\u4e0d\u540c\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5206\u522b\u7528\u4e8e\u8868\u793a\u5b57\u8282\u548c\u5b57\u7b26\u3002\u5b57\u8282\u901a\u5e38\u7528\u6765\u5b58\u50a8\u4e8c\u8fdb\u5236\u6570\u636e\uff0c\u800c\u5b57\u7b26\u662f unicode \u5b57\u7b26\u7684\u62bd\u8c61\u8868\u793a\u3002,\u56f0\u60d1\u4e4b\u5904\u5728\u4e8e\u4e0b\u8ff0\u4ee3\u7801\uff1a,\u8fd9\u6bb5\u4ee3\u7801\u6b63\u786e\u5730\u8ba1\u7b97\u4e86\u5b57\u8282\u5207\u7247 a \u4e2d\u7a7a\u683c\u7684\u6570\u91cf\uff0c\u5c3d\u7ba1\u5b83\u6bd4\u8f83\u4e86\u4e00\u4e2a\u5b57\u8282\u7c7b\u578b v \u548c\u4e00\u4e2a\u5b57\u7b26\u7c7b\u578b &#8216; &#8216;\u3002,\u7406\u89e3\u7684\u5173\u952e\u5728\u4e8e\uff0c\u201crune\u201d\u5b9e\u9645\u4e0a\u5c31\u662f int32\uff0c\u800c\u201cbyte\u201d\u5c31\u662f int8\u3002\u5373\u4f7f\u4e0d\u540c\u7c7b\u578b\uff0c\u6574\u6570\u7c7b\u578b\u5728\u7f16\u8bd1\u671f\u95f4\u4e5f\u80fd\u8fdb\u884c\u9690\u5f0f\u8f6c\u6362\u3002\u56e0\u6b64\uff0cv == &#8216; &#8216; \u5b9e\u9645\u4e0a\u662f\u5c06\u5b57\u8282 v \u9690\u5f0f\u8f6c\u6362\u4e3a int32\uff0c\u7136\u540e\u4e0e int32 \u5b57\u7b26 &#8216; &#8216; \u8fdb\u884c\u6bd4\u8f83\u3002,\u56e0\u6b64\uff0c\u7ed9\u5b9a\u7684\u4ee3\u7801\u6b63\u786e\u8fd0\u884c\uff0c\u8f93\u51fa\u7a7a\u683c\u7684\u6570\u91cf\u4e3a 1\u3002,\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aGo \u4e2d\u7684 `byte` \u548c `rune`\uff1a\u4e3a\u4ec0\u4e48\u53ef\u4ee5\u7528\u5b57\u8282\u7c7b\u578b\u6bd4\u8f83\u5b57\u7b26\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,\u7406\u89e3 go \u8bed\u8a00\u4e2d\u7684 byte \u548c rune,GOLANG\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u4e2d\u7684 `byte` \u548c `rune`\uff1a\u4e3a\u4ec0\u4e48\u53ef\u4ee5\u7528\u5b57\u8282\u7c7b\u578b\u6bd4\u8f83\u5b57\u7b26\uff1f\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\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\u4f60\u662f\u6b63\u5728\u5b66\u4e60<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\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 \u4e2d\u7684 `byte` \u548c `rune`\uff1a\u4e3a\u4ec0\u4e48\u53ef\u4ee5\u7528\u5b57\u8282\u7c7b\u578b\u6bd4\u8f83\u5b57\u7b26\uff1f<\/span><\/p>\n<h1>Go \u4e2d\u7684 `byte` \u548c `rune`\uff1a\u4e3a\u4ec0\u4e48\u53ef\u4ee5\u7528\u5b57\u8282\u7c7b\u578b\u6bd4\u8f83\u5b57\u7b26\uff1f<\/h1>\n<p><span>2024-11-11 15:43:05<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>GOLANG\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u4e2d\u7684 `byte` \u548c `rune`\uff1a\u4e3a\u4ec0\u4e48\u53ef\u4ee5\u7528\u5b57\u8282\u7c7b\u578b\u6bd4\u8f83\u5b57\u7b26\uff1f\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u662f\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241111\/17313109696731b57951888.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u7406\u89e3 go \u8bed\u8a00\u4e2d\u7684 byte \u548c rune<\/strong><\/p>\n<p>\u5728 go \u8bed\u8a00\u4e2d\uff0c\u201cbyte\u201d\u548c\u201crune\u201d\u662f\u4e24\u79cd\u4e0d\u540c\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5206\u522b\u7528\u4e8e\u8868\u793a\u5b57\u8282\u548c\u5b57\u7b26\u3002\u5b57\u8282\u901a\u5e38\u7528\u6765\u5b58\u50a8\u4e8c\u8fdb\u5236\u6570\u636e\uff0c\u800c\u5b57\u7b26\u662f unicode \u5b57\u7b26\u7684\u62bd\u8c61\u8868\u793a\u3002<\/p>\n<p>\u56f0\u60d1\u4e4b\u5904\u5728\u4e8e\u4e0b\u8ff0\u4ee3\u7801\uff1a<\/p>\n<pre>func main() {\n    a := []byte(\"Hello \u4e16\u754c\")\n    count := 0\n    for _, v := range a {\n        if v == ' ' {\n            count++\n        }\n    }\n    fmt.Println(count)\n}<\/pre>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u6b63\u786e\u5730\u8ba1\u7b97\u4e86\u5b57\u8282\u5207\u7247 a \u4e2d\u7a7a\u683c\u7684\u6570\u91cf\uff0c\u5c3d\u7ba1\u5b83\u6bd4\u8f83\u4e86\u4e00\u4e2a\u5b57\u8282\u7c7b\u578b v \u548c\u4e00\u4e2a\u5b57\u7b26\u7c7b\u578b &#8216; &#8216;\u3002<\/p>\n<p>\u7406\u89e3\u7684\u5173\u952e\u5728\u4e8e\uff0c\u201crune\u201d\u5b9e\u9645\u4e0a\u5c31\u662f int32\uff0c\u800c\u201cbyte\u201d\u5c31\u662f int8\u3002\u5373\u4f7f\u4e0d\u540c\u7c7b\u578b\uff0c\u6574\u6570\u7c7b\u578b\u5728\u7f16\u8bd1\u671f\u95f4\u4e5f\u80fd\u8fdb\u884c\u9690\u5f0f\u8f6c\u6362\u3002\u56e0\u6b64\uff0cv == &#8216; &#8216; \u5b9e\u9645\u4e0a\u662f\u5c06\u5b57\u8282 v \u9690\u5f0f\u8f6c\u6362\u4e3a int32\uff0c\u7136\u540e\u4e0e int32 \u5b57\u7b26 &#8216; &#8216; \u8fdb\u884c\u6bd4\u8f83\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u7ed9\u5b9a\u7684\u4ee3\u7801\u6b63\u786e\u8fd0\u884c\uff0c\u8f93\u51fa\u7a7a\u683c\u7684\u6570\u91cf\u4e3a 1\u3002<\/p>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aGo \u4e2d\u7684 `byte` \u548c `rune`\uff1a\u4e3a\u4ec0\u4e48\u53ef\u4ee5\u7528\u5b57\u8282\u7c7b\u578b\u6bd4\u8f83\u5b57\u7b26\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   \u5982\u4f55\u4f7f\u7528 GORM \u5728\u4e0d\u521b\u5efa\u5916\u952e\u7ea6\u675f\u7684\u60c5\u51b5\u4e0b\u8fdb\u884c\u5173\u8054\u67e5\u8be2\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   Go \u8bed\u8a00\u4e2d\u53d8\u91cf\u7684\u4f5c\u7528\u57df\u662f\u5982\u4f55\u89e3\u6790\u7684\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>GOLANG\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765 \u300a&#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-206404","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206404","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=206404"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206404\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}