{"id":206127,"date":"2025-06-12T08:43:06","date_gmt":"2025-06-12T00:43:06","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206127\/"},"modified":"2025-06-12T08:43:06","modified_gmt":"2025-06-12T00:43:06","slug":"go-%e4%b8%ad%e5%b0%81%e8%a3%85-log-printf-%e6%96%b9%e6%b3%95%ef%bc%8c%e5%a6%82%e4%bd%95%e9%81%bf%e5%85%8d%e6%a0%bc%e5%bc%8f%e5%8c%96%e6%97%a5%e5%bf%97%e9%94%99%e8%af%af%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206127\/","title":{"rendered":"Go \u4e2d\u5c01\u88c5 log.Printf \u65b9\u6cd5\uff0c\u5982\u4f55\u907f\u514d\u683c\u5f0f\u5316\u65e5\u5fd7\u9519\u8bef\uff1f"},"content":{"rendered":"<p>\u6765\u5230GOLANG\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60GOLANG\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300aGo \u4e2d\u5c01\u88c5 log.Printf \u65b9\u6cd5\uff0c\u5982\u4f55\u907f\u514d\u683c\u5f0f\u5316\u65e5\u5fd7\u9519\u8bef\uff1f\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241104\/17306931976728484de9659.jpg\" class=\"aligncenter\">,<br \/>\n<strong>\u5c01\u88c5 log.printf \u65b9\u6cd5<\/strong>,\u5728 go \u4e2d\uff0clog.printf \u7528\u4e8e\u683c\u5f0f\u5316\u5e76\u6253\u5370\u65e5\u5fd7\u4fe1\u606f\u3002\u4f46\u662f\uff0c\u6709\u65f6\u6211\u4eec\u9700\u8981\u63a7\u5236\u65e5\u5fd7\u662f\u5426\u8f93\u51fa\u6216\u81ea\u5b9a\u4e49\u65e5\u5fd7\u683c\u5f0f\u3002\u4e3a\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u5c01\u88c5 log \u76f8\u5173\u7684\u65b9\u6cd5\u3002\u4f46\u9700\u8981\u6ce8\u610f\uff0c\u5c01\u88c5\u4e2d\u7684 printf \u65b9\u6cd5\u53ef\u80fd\u5b58\u5728\u95ee\u9898\u3002,\u95ee\u9898\uff1a<br \/>\n<br \/>\u5c01\u88c5\u540e\u7684 printf \u65b9\u6cd5\u65e0\u6cd5\u6b63\u786e\u683c\u5f0f\u5316\u65e5\u5fd7\uff0c\u5bfc\u81f4\u8f93\u51fa\u4e0d\u7b26\u5408\u9884\u671f\u3002\u8fd9\u662f\u56e0\u4e3a\u5728 log.printf \u4e2d\uff0c\u53c2\u6570 arg \u9700\u8981\u5c55\u5f00\u4e3a\u53ef\u53d8\u53c2\u6570\u5217\u8868\u3002,\u4ee3\u7801\uff1a,\u8f93\u51fa\uff1a,\u89e3\u51b3\u65b9\u6848\uff1a<br \/>\n<br \/>\u5c06 log.printf \u4e2d\u7684 arg \u5c55\u5f00\u4e3a\u53ef\u53d8\u53c2\u6570\u5217\u8868\uff0c\u4fee\u6539\u4ee3\u7801\u5982\u4e0b\uff1a,\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aGo \u4e2d\u5c01\u88c5 log.Printf \u65b9\u6cd5\uff0c\u5982\u4f55\u907f\u514d\u683c\u5f0f\u5316\u65e5\u5fd7\u9519\u8bef\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,\u5c01\u88c5 log.printf \u65b9\u6cd5,\u6765\u5230GOLANG\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60GOLANG\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300aGo \u4e2d\u5c01\u88c5 log.Printf \u65b9\u6cd5\uff0c\u5982\u4f55\u907f\u514d\u683c\u5f0f\u5316\u65e5\u5fd7\u9519\u8bef\uff1f\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\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\u5c01\u88c5 log.Printf \u65b9\u6cd5\uff0c\u5982\u4f55\u907f\u514d\u683c\u5f0f\u5316\u65e5\u5fd7\u9519\u8bef\uff1f<\/span><\/p>\n<h1>Go \u4e2d\u5c01\u88c5 log.Printf \u65b9\u6cd5\uff0c\u5982\u4f55\u907f\u514d\u683c\u5f0f\u5316\u65e5\u5fd7\u9519\u8bef\uff1f<\/h1>\n<p><span>2024-11-04 12:06:53<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u6765\u5230GOLANG\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60GOLANG\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300aGo \u4e2d\u5c01\u88c5 log.Printf \u65b9\u6cd5\uff0c\u5982\u4f55\u907f\u514d\u683c\u5f0f\u5316\u65e5\u5fd7\u9519\u8bef\uff1f\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241104\/17306931976728484de9659.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u5c01\u88c5 log.printf \u65b9\u6cd5<\/strong><\/p>\n<p>\u5728 go \u4e2d\uff0clog.printf \u7528\u4e8e\u683c\u5f0f\u5316\u5e76\u6253\u5370\u65e5\u5fd7\u4fe1\u606f\u3002\u4f46\u662f\uff0c\u6709\u65f6\u6211\u4eec\u9700\u8981\u63a7\u5236\u65e5\u5fd7\u662f\u5426\u8f93\u51fa\u6216\u81ea\u5b9a\u4e49\u65e5\u5fd7\u683c\u5f0f\u3002\u4e3a\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u5c01\u88c5 log \u76f8\u5173\u7684\u65b9\u6cd5\u3002\u4f46\u9700\u8981\u6ce8\u610f\uff0c\u5c01\u88c5\u4e2d\u7684 printf \u65b9\u6cd5\u53ef\u80fd\u5b58\u5728\u95ee\u9898\u3002<\/p>\n<p>\u95ee\u9898\uff1a<br \/>\u5c01\u88c5\u540e\u7684 printf \u65b9\u6cd5\u65e0\u6cd5\u6b63\u786e\u683c\u5f0f\u5316\u65e5\u5fd7\uff0c\u5bfc\u81f4\u8f93\u51fa\u4e0d\u7b26\u5408\u9884\u671f\u3002\u8fd9\u662f\u56e0\u4e3a\u5728 log.printf \u4e2d\uff0c\u53c2\u6570 arg \u9700\u8981\u5c55\u5f00\u4e3a\u53ef\u53d8\u53c2\u6570\u5217\u8868\u3002<\/p>\n<p>\u4ee3\u7801\uff1a<\/p>\n<pre>func debugf(str string, arg ...interface{}) {\n    if true {\n        log.printf(str+\"\\n\", arg)\n    }\n}<\/pre>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>2021\/12\/17 16:35:16 \u6211\u53eb[jim %!s(int=18)],\u4eca\u5e74%!d(missing)<\/pre>\n<p>\u89e3\u51b3\u65b9\u6848\uff1a<br \/>\u5c06 log.printf \u4e2d\u7684 arg \u5c55\u5f00\u4e3a\u53ef\u53d8\u53c2\u6570\u5217\u8868\uff0c\u4fee\u6539\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre>func Debugf(str string, arg ...interface{}) {\n    if true {\n        log.Printf(str+\"\\n\", arg...)\n    }\n}<\/pre>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aGo \u4e2d\u5c01\u88c5 log.Printf \u65b9\u6cd5\uff0c\u5982\u4f55\u907f\u514d\u683c\u5f0f\u5316\u65e5\u5fd7\u9519\u8bef\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\u6b63\u5219\u8868\u8fbe\u5f0f\u9a8c\u8bc1\u8f93\u5165\u4e3a\u6b63\u6574\u6570\u6216\u5c0f\u6570\u70b9\u540e\u4e00\u4f4d\u7684\u5c0f\u6570\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u5feb\u901f\u5728\u7ebf\u67e5\u8be2\u7535\u8111\u6545\u969c\u89e3\u51b3\u65b9\u6cd5\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u6765\u5230GOLANG\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f&#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-206127","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206127","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=206127"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206127\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206127"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206127"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}