{"id":207388,"date":"2025-07-08T08:31:28","date_gmt":"2025-07-08T00:31:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207388\/"},"modified":"2025-07-08T08:31:28","modified_gmt":"2025-07-08T00:31:28","slug":"golang-%e5%b0%86%e8%87%aa%e5%ae%9a%e4%b9%89-os-file-%e6%b7%bb%e5%8a%a0%e5%88%b0-os-stdout","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207388\/","title":{"rendered":"Golang \u5c06\u81ea\u5b9a\u4e49 os.File \u6dfb\u52a0\u5230 os.Stdout"},"content":{"rendered":"<p><b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>Golang \u5c06\u81ea\u5b9a\u4e49 os.File \u6dfb\u52a0\u5230 os.Stdout<\/span><\/p>\n<p><span>\u6765\u6e90\uff1astackoverflow<\/span><br \/>\n<span>2024-04-22 09:24:30<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\u8981\u52aa\u529b\uff0c\u4f46\u662f\u4e0d\u8981\u6025\uff01\u4eca\u5929\u7684\u8fd9\u7bc7\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGolang \u5c06\u81ea\u5b9a\u4e49 os.File \u6dfb\u52a0\u5230 os.Stdout\u300b<\/span>\u5c06\u4f1a\u4ecb\u7ecd\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\u60f3\u6df1\u5165\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\uff0c\u53ef\u4ee5\u5173\u6ce8\u6211\uff01\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\u7684\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u80fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p> \u95ee\u9898\u5185\u5bb9<br \/>\n <\/p>\n<p>\u6bcf\u5f53\u6211\u5c06\u67d0\u4e9b\u5185\u5bb9\u6253\u5370\u5230\u63a7\u5236\u53f0\u65f6\uff0c\u6211\u90fd\u4f1a\u5c1d\u8bd5\u5c06\u8f93\u51fa\u5199\u5165\u6587\u4ef6\u3002\u4f3c\u4e4e\u6ca1\u6709\u4efb\u4f55\u4f7f\u7528\u8fde\u7eed\u6d41\u7684\u597d\u4f8b\u5b50\uff0c\u800c\u662f\u8bfb\u53d6\u5355\u4e2a\u503c\uff0c\u6240\u4ee5\u6211\u60f3\u51fa\u4e86\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>package main\n\nimport (\n    \"fmt\"\n    \"io\"\n    \"os\"\n)\n\ntype ahhh struct {\n    *os.File\n    __writer io.Writer\n}\n\nfunc (me *ahhh) Write(b []byte) (n int, err error) {\n    return me.__writer.Write(b)\n}\n\nfunc write_print_to_file(file_name string) {\n    file, _ := os.OpenFile(file_name, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)\n\n    new_stdout := &amp;ahhh{file, io.MultiWriter(file, os.Stdout)}\n\n    os.Stdout = new_stdout\n}\n\nfunc main() {\n    write_print_to_file(\"output.log\")\n    fmt.Println(\"Hello world!\")\n}<\/pre>\n<p>\u51fa\u4e8e\u67d0\u79cd\u539f\u56e0\uff0c<code>os.stdout = new_stdout<\/code> \u4e0d\u60f3\u5de5\u4f5c\u3002\u6211\u76f8\u5f53\u786e\u5b9a\u8fd9\u5e94\u8be5\u662f\u5141\u8bb8\u7684\u5206\u914d\uff0c\u56e0\u4e3a\u6211\u5728 fuse \u6587\u4ef6\u7cfb\u7edf\u4e2d\u4f7f\u7528\u7c7b\u4f3c\u7ed3\u6784\u7684\u4e1c\u897f\uff0c\u6240\u4ee5\u6211\u5f88\u597d\u5947\u4e3a\u4ec0\u4e48 <code>os.stdout<\/code> \u4e0d\u60f3\u63a5\u53d7\u6211\u7ee7\u627f\u7684 <code>os.file<\/code>\u3002<\/p>\n<p>\u6216\u8005\uff0c\u5982\u679c\u8fd9\u786e\u5b9e\u4e0d\u53ef\u80fd\uff0c\u6709\u4ec0\u4e48\u597d\u7684\u5efa\u8bae\u53ef\u4ee5\u5c06\u8fde\u7eed\u6570\u636e\u6d41\u5199\u5165\u6587\u4ef6\u5417\uff1f<\/p>\n<p> <\/p>\n<h2>\u89e3\u51b3\u65b9\u6848<\/h2>\n<p> <\/p>\n<p>\u5b83\u662f <code>*os.File<\/code> \u5417\uff1f\u4e0d\u3002\u4e3a\u4ec0\u4e48\u8981\u5141\u8bb8\u5b83\uff1f<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\uff01\u66f4\u591a\u5173\u4e8eGolang\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f53\u524d\u4f4d\u7f6e\uff1a &gt; &gt; &#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-207388","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207388","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=207388"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207388\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}