{"id":939,"date":"2024-11-07T16:18:02","date_gmt":"2024-11-07T08:18:02","guid":{"rendered":"https:\/\/fwq.ai\/blog\/939\/"},"modified":"2024-11-07T16:18:02","modified_gmt":"2024-11-07T08:18:02","slug":"go-%e8%af%ad%e8%a8%80%e4%b8%ad%e7%9a%84%e9%94%99%e8%af%af%e9%80%9a%e9%81%93%e4%bc%a0%e9%80%92%ef%bc%9aerrchan","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/939\/","title":{"rendered":"Go \u8bed\u8a00\u4e2d\u7684\u9519\u8bef\u901a\u9053\u4f20\u9012\uff1aerrChan"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-970\" src=\"https:\/\/fwq.ai\/blog\/wp-content\/uploads\/2024\/11\/173085194759234.jpg\" width=\"800\" height=\"320\" srcset=\"https:\/\/fwq.ai\/blog\/wp-content\/uploads\/2024\/11\/173085194759234.jpg 800w, https:\/\/fwq.ai\/blog\/wp-content\/uploads\/2024\/11\/173085194759234-300x120.jpg 300w, https:\/\/fwq.ai\/blog\/wp-content\/uploads\/2024\/11\/173085194759234-768x307.jpg 768w, https:\/\/fwq.ai\/blog\/wp-content\/uploads\/2024\/11\/173085194759234-670x268.jpg 670w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" title=\"Go \u8bed\u8a00\u4e2d\u7684\u9519\u8bef\u901a\u9053\u4f20\u9012\uff1aerrChan\u63d2\u56fe\" alt=\"Go \u8bed\u8a00\u4e2d\u7684\u9519\u8bef\u901a\u9053\u4f20\u9012\uff1aerrChan\u63d2\u56fe\" \/><\/p>\n<p><strong>\u9519\u8bef\u901a\u9053\u4f20\u9012\uff1aerrChan <\/strong><\/p>\n<p>\u5728 Go \u8bed\u8a00\u4e2d\uff0c\u4f7f\u7528\u901a\u9053\u8fdb\u884c\u534f\u7a0b\u4e4b\u95f4\u7684\u901a\u4fe1\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u4ee5\u4e0b\u95ee\u9898\uff1a<\/p>\n<p><strong>io.Reader \u548c io.Writer \u7684\u4f5c\u7528<\/strong><\/p>\n<ul>\n<li> <strong>io.Reader<\/strong>\uff1a\u5b9a\u4e49\u4e00\u4e2a\u8bfb\u53d6\u6570\u636e\u7684\u63a5\u53e3\uff0c\u4f8b\u5982\u6587\u4ef6\u3001HTTP \u54cd\u5e94\u6216\u7f51\u7edc\u8fde\u63a5\u3002<\/li>\n<li> <strong>io.Writer<\/strong>\uff1a\u5b9a\u4e49\u4e00\u4e2a\u5199\u5165\u6570\u636e\u7684\u63a5\u53e3\uff0c\u4f8b\u5982\u6587\u4ef6\u3001HTTP \u8bf7\u6c42\u6216\u7f51\u7edc\u8fde\u63a5\u3002<\/li>\n<\/ul>\n<p><strong>io.Copy(dst, src) \u7684\u4f5c\u7528<\/strong><\/p>\n<ul>\n<li>\u5b83\u662f\u4e00\u4e2a\u6807\u51c6\u5e93\u51fd\u6570\uff0c\u5b83\u4ece src \u8bfb\u53d6\u6570\u636e\u5e76\u5199\u5165 dst\uff0c\u76f4\u5230\u8bfb\u53d6\u5230 EOF\uff08\u6587\u4ef6\u7ed3\u5c3e\uff09\u6216\u9047\u5230\u9519\u8bef\u3002<\/li>\n<li>\u5b83\u5141\u8bb8\u4ee5\u6700\u5c11\u7684\u5de5\u4f5c\u8f7b\u677e\u5730\u8fdb\u884c\u6570\u636e\u590d\u5236\uff0c\u5c24\u5176\u662f\u5728\u534f\u7a0b\u4e4b\u95f4\u3002<\/li>\n<\/ul>\n<p><strong>errChan <\/strong><\/p>\n<p>\u5728\u4ee3\u7801\u7247\u6bb5\u4e2d\uff0cerrChan \u662f\u4e00\u4e2a\u9519\u8bef\u901a\u9053\uff0c\u7528\u4e8e\u5728\u534f\u7a0b\u4e4b\u95f4\u4f20\u9012\u4ece io.Copy \u8fd4\u56de\u7684\u9519\u8bef\u3002<\/p>\n<ul>\n<li><strong>errChan \uff1a\u5c06\u9519\u8bef\u4ece\u534f\u7a0b\u53d1\u9001\u5230\u5916\u90e8\u901a\u9053 errChan\u3002<\/strong><\/li>\n<li>\u5916\u90e8\u8c03\u7528\u8005\u53ef\u4ee5\u901a\u8fc7\u4ece errChan \u63a5\u6536\u6765\u83b7\u53d6\u9519\u8bef\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e2a\u673a\u5236\u5141\u8bb8\u5728\u534f\u7a0b\u8fd4\u56de\u4e4b\u524d\u4ece\u5916\u90e8\u83b7\u53d6\u9519\u8bef\uff0c\u4ece\u800c\u907f\u514d\u7b49\u5f85\u534f\u7a0b\u5b8c\u6210\u540e\u624d\u80fd\u8bbf\u95ee\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fGo \u8bed\u8a00\u4e2d\u7684\u9519\u8bef\u901a\u9053\u4f20\u9012\uff1aerrChan\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9519\u8bef\u901a\u9053\u4f20\u9012\uff1aerrChan \u5728 Go \u8bed\u8a00\u4e2d\uff0c\u4f7f\u7528\u901a\u9053\u8fdb\u884c\u534f\u7a0b\u4e4b\u95f4\u7684\u901a\u4fe1\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u4ee5\u4e0b\u95ee\u9898\uff1a io.Reader \u548c io.Writer \u7684\u4f5c\u7528 io.Reader\uff1a\u5b9a\u4e49\u4e00\u4e2a\u8bfb\u53d6\u6570\u636e\u7684\u63a5\u53e3\uff0c\u4f8b\u5982\u6587\u4ef6\u3001HTTP \u54cd\u5e94\u6216\u7f51\u7edc\u8fde\u63a5\u3002 io.Writer\uff1a\u5b9a\u4e49\u4e00\u4e2a\u5199\u5165\u6570\u636e\u7684\u63a5\u53e3\uff0c\u4f8b\u5982\u6587\u4ef6\u3001HTTP \u8bf7\u6c42\u6216\u7f51\u7edc\u8fde\u63a5\u3002 io.Copy(dst, src) \u7684\u4f5c\u7528 \u5b83\u662f\u4e00\u4e2a\u6807\u51c6\u5e93\u51fd\u6570\uff0c\u5b83\u4ece src \u8bfb\u53d6\u6570\u636e\u5e76\u5199\u5165 dst\uff0c\u76f4\u5230\u8bfb\u53d6\u5230 EOF\uff08\u6587\u4ef6\u7ed3\u5c3e\uff09\u6216\u9047\u5230\u9519\u8bef\u3002 \u5b83\u5141\u8bb8\u4ee5\u6700\u5c11\u7684\u5de5\u4f5c\u8f7b\u677e\u5730\u8fdb\u884c\u6570\u636e\u590d\u5236\uff0c\u5c24\u5176\u662f\u5728\u534f\u7a0b\u4e4b\u95f4\u3002 errChan \u5728\u4ee3\u7801\u7247\u6bb5\u4e2d\uff0cerrChan \u662f\u4e00\u4e2a\u9519\u8bef\u901a\u9053\uff0c\u7528\u4e8e\u5728\u534f\u7a0b\u4e4b\u95f4\u4f20\u9012\u4ece io.Copy \u8fd4\u56de\u7684\u9519\u8bef\u3002 errChan \uff1a\u5c06\u9519\u8bef\u4ece\u534f\u7a0b\u53d1\u9001\u5230\u5916\u90e8\u901a\u9053 errChan\u3002 \u5916\u90e8\u8c03\u7528\u8005\u53ef\u4ee5\u901a\u8fc7\u4ece errChan \u63a5\u6536\u6765\u83b7\u53d6\u9519\u8bef\u3002 \u8fd9\u4e2a\u673a\u5236\u5141\u8bb8\u5728\u534f\u7a0b\u8fd4\u56de\u4e4b\u524d\u4ece\u5916\u90e8\u83b7\u53d6\u9519\u8bef\uff0c\u4ece\u800c\u907f\u514d\u7b49\u5f85\u534f\u7a0b\u5b8c\u6210\u540e\u624d\u80fd\u8bbf\u95ee\u9519\u8bef\u4fe1\u606f\u3002 \u4ee5\u4e0a\u5c31\u662fGo \u8bed\u8a00\u4e2d\u7684\u9519\u8bef\u901a\u9053\u4f20\u9012\uff1aerrChan\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-939","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/939","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=939"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/939\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}