{"id":206257,"date":"2025-06-12T12:05:46","date_gmt":"2025-06-12T04:05:46","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206257\/"},"modified":"2025-06-12T12:05:46","modified_gmt":"2025-06-12T04:05:46","slug":"go-%e8%af%ad%e8%a8%80%e4%b8%ad%e6%95%b0%e5%ad%97%e4%b8%ad%e7%9a%84%e4%b8%8b%e5%88%92%e7%ba%bf%e6%98%af%e4%bb%80%e4%b9%88%e6%84%8f%e6%80%9d%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206257\/","title":{"rendered":"Go \u8bed\u8a00\u4e2d\u6570\u5b57\u4e2d\u7684\u4e0b\u5212\u7ebf\u662f\u4ec0\u4e48\u610f\u601d\uff1f"},"content":{"rendered":"<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u8bed\u8a00\u4e2d\u6570\u5b57\u4e2d\u7684\u4e0b\u5212\u7ebf\u662f\u4ec0\u4e48\u610f\u601d\uff1f\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9&#8230;\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241107\/1730972914672c8cf25d2a0.jpg\" class=\"aligncenter\">,go \u8bed\u8a00\u4e2d maxbytes := 1_048_576 \u4e2d\u7684\u6570\u5b57\u4e3a\u4ec0\u4e48\u662f int \u7c7b\u578b\uff0c\u91cc\u9762\u5305\u542b\u7684\u4e0b\u5212\u7ebf\u542b\u4e49\u662f\u4ec0\u4e48\uff1f,\u6b63\u5982\u95ee\u9898\u6240\u8ff0\uff0c\u5728 go \u8bed\u8a00\u4e2d\uff0cmaxbytes := 1_048_576 \u4e2d\u7684 1_048_576 \u662f\u4e00\u4e2a int \u7c7b\u578b\u3002\u8fd9\u662f\u56e0\u4e3a go \u8bed\u8a00\u7684\u89c4\u5219\u5141\u8bb8\u4f7f\u7528\u4e0b\u5212\u7ebf\u4f5c\u4e3a\u6574\u6570\u7684\u5343\u4f4d\u5206\u9694\u7b26\uff0c\u4ee5\u589e\u5f3a\u53ef\u8bfb\u6027\u3002\u4ece go 1.13 \u7248\u672c\u5f00\u59cb\uff0c\u5c31\u53ef\u4ee5\u5728\u6574\u6570\u3001\u6d6e\u70b9\u6570\u548c\u865a\u90e8\u6570\u5b57\u9762\u91cf\u4e2d\u4f7f\u7528\u4e0b\u5212\u7ebf\u4f5c\u4e3a\u5206\u6bb5\u7b26\u3002,\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u662f\u6709\u6548\u7684 go \u8bed\u8a00\u4ee3\u7801\uff1a,\u8fd9\u4e9b\u6570\u5b57\u901a\u8fc7\u4e0b\u5212\u7ebf\u5206\u6bb5\uff0c\u53ef\u4ee5\u66f4\u8f7b\u677e\u5730\u9605\u8bfb\u548c\u7406\u89e3\uff0c\u5c24\u5176\u662f\u5728\u6570\u5b57\u8f83\u5927\u6216\u5305\u542b\u5c0f\u6570\u90e8\u5206\u65f6\u3002,\u4eca\u5929\u5173\u4e8e\u300aGo \u8bed\u8a00\u4e2d\u6570\u5b57\u4e2d\u7684\u4e0b\u5212\u7ebf\u662f\u4ec0\u4e48\u610f\u601d\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728GOLANG\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01,\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u8bed\u8a00\u4e2d\u6570\u5b57\u4e2d\u7684\u4e0b\u5212\u7ebf\u662f\u4ec0\u4e48\u610f\u601d\uff1f\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9&#8230;\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\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\u4e2d\u6570\u5b57\u4e2d\u7684\u4e0b\u5212\u7ebf\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/span><\/p>\n<h1>Go \u8bed\u8a00\u4e2d\u6570\u5b57\u4e2d\u7684\u4e0b\u5212\u7ebf\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/h1>\n<p><span>2024-11-07 17:48:50<\/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\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u8bed\u8a00\u4e2d\u6570\u5b57\u4e2d\u7684\u4e0b\u5212\u7ebf\u662f\u4ec0\u4e48\u610f\u601d\uff1f\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9&#8230;\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241107\/1730972914672c8cf25d2a0.jpg\" class=\"aligncenter\"><\/p>\n<p>go \u8bed\u8a00\u4e2d maxbytes := 1_048_576 \u4e2d\u7684\u6570\u5b57\u4e3a\u4ec0\u4e48\u662f int \u7c7b\u578b\uff0c\u91cc\u9762\u5305\u542b\u7684\u4e0b\u5212\u7ebf\u542b\u4e49\u662f\u4ec0\u4e48\uff1f<\/p>\n<p>\u6b63\u5982\u95ee\u9898\u6240\u8ff0\uff0c\u5728 go \u8bed\u8a00\u4e2d\uff0cmaxbytes := 1_048_576 \u4e2d\u7684 1_048_576 \u662f\u4e00\u4e2a int \u7c7b\u578b\u3002\u8fd9\u662f\u56e0\u4e3a go \u8bed\u8a00\u7684\u89c4\u5219\u5141\u8bb8\u4f7f\u7528\u4e0b\u5212\u7ebf\u4f5c\u4e3a\u6574\u6570\u7684\u5343\u4f4d\u5206\u9694\u7b26\uff0c\u4ee5\u589e\u5f3a\u53ef\u8bfb\u6027\u3002\u4ece go 1.13 \u7248\u672c\u5f00\u59cb\uff0c\u5c31\u53ef\u4ee5\u5728\u6574\u6570\u3001\u6d6e\u70b9\u6570\u548c\u865a\u90e8\u6570\u5b57\u9762\u91cf\u4e2d\u4f7f\u7528\u4e0b\u5212\u7ebf\u4f5c\u4e3a\u5206\u6bb5\u7b26\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u662f\u6709\u6548\u7684 go \u8bed\u8a00\u4ee3\u7801\uff1a<\/p>\n<pre>maxBytes := 1_048_576\nmyFloat := 123.456_789<\/pre>\n<p>\u8fd9\u4e9b\u6570\u5b57\u901a\u8fc7\u4e0b\u5212\u7ebf\u5206\u6bb5\uff0c\u53ef\u4ee5\u66f4\u8f7b\u677e\u5730\u9605\u8bfb\u548c\u7406\u89e3\uff0c\u5c24\u5176\u662f\u5728\u6570\u5b57\u8f83\u5927\u6216\u5305\u542b\u5c0f\u6570\u90e8\u5206\u65f6\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300aGo \u8bed\u8a00\u4e2d\u6570\u5b57\u4e2d\u7684\u4e0b\u5212\u7ebf\u662f\u4ec0\u4e48\u610f\u601d\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728GOLANG\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u89e3\u51b3CSS\u5e03\u5c40\u4e2dH\u6807\u7b7e\u8d85\u51faDIV\u5757\u8303\u56f4\u7684\u95ee\u9898\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   MySQL \u4e2d IFNULL() \u4e0e NULLIF() \u5d4c\u5957\u4f7f\u7528\u4f1a\u9020\u6210\u6027\u80fd\u635f\u8017\u5417\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\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-206257","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206257","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=206257"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206257\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}