{"id":1587,"date":"2020-09-28T05:18:39","date_gmt":"2020-09-27T21:18:39","guid":{"rendered":"https:\/\/www.develop-note.com\/blog\/?p=1587"},"modified":"2022-02-16T21:56:03","modified_gmt":"2022-02-16T13:56:03","slug":"go-defer-2021ironman","status":"publish","type":"post","link":"https:\/\/www.develop-note.com\/blog\/2020\/09\/28\/go-defer-2021ironman\/","title":{"rendered":"Iris \u9019\u500b\u5728 go \u8a9e\u8a00\u4e0a\u5730\u8868\u6700\u5feb\u7684\u7db2\u9801\u6846\u67b6-\u5ef6\u9072\u57f7\u884c"},"content":{"rendered":"

\u5ef6\u9072\u57f7\u884c<\/h1>\n

\u8aaa\u660e\u5b8c\u6307\u6a19\u3001\u65b9\u6cd5\u3001\u985e\u5225\u8207\u4ecb\u9762\u5f8c\u6211\u5011\u518d\u56de\u5230\u95dc\u65bc go \u7684\u65b9\u6cd5\u6d41\u7a0b\u7684\u4ecb\u7d39\uff0c go \u6d41\u7a0b\u662f\u7531\u4e0a\u800c\u4e0b\u9010\u6b65\u57f7\u884c\uff0c\u4f46\u662f\u9019\u53ea\u662f\u901a\u5247\u800c\u5df2\uff0c\u56e0\u70ba\u63a5\u4e0b\u4f86\u8981\u4ecb\u7d39\u7684\u5167\u5bb9\u5982\uff0c\u591a\u57f7\u884c\u7e8c\u4ee5\u53ca\u672c\u7bc7\u8981\u8aaa\u660e\u7684\u5ef6\u9072\u57f7\u884c defer<\/code> \u5247\u662f\u4f8b\u5916\uff0c\u672c\u7bc7\u6703\u5148\u8aaa\u660e\u5ef6\u9072\u57f7\u884c\u7684\u5167\u5bb9\u3002<\/p>\n

<\/p>\n

\u5ef6\u9072\u57f7\u884c\u7684\u64b0\u5beb<\/h2>\n

\u7a76\u7adf\u5ef6\u9072\u57f7\u884c\u662f\u751a\u9ebc\u6a23\u7684\u8a9e\u6cd5\u5462\uff0c\u7c21\u55ae\u8b1b\u5c31\u662f\u5148\u8df3\u904e defer<\/code> \u9019\u95dc\u9375\u5b57\u6240\u5728\u7684\u8a9e\u6cd5\u5f80\u4e0b\u57f7\u884c\uff0c\u76f4\u5230\u65b9\u6cd5\u7d50\u675f\u5f8c\u624d\u6703\u958b\u59cb\u57f7\u884c defer<\/code> \u5167\u7684\u5167\u5bb9\uff0c\u5149\u9019\u6a23\u8aaa\u660e\u8b80\u8005\u53ef\u80fd\u6703\u4e00\u982d\u9727\u6c34\uff0c\u63a5\u4e0b\u4f86\u6211\u5011\u5148\u4ecb\u7d39\u5982\u4f55\u5beb\u4ee5\u53ca\u8aaa\u660e\u6d41\u7a0b\u7684\u904b\u4f5c\u65b9\u5f0f\u3002<\/p>\n

\u5ef6\u9072\u57f7\u884c\u7684\u6307\u4ee4<\/h3>\n

\u9996\u5148\u5148\u8aaa\u660e\u5982\u4f55\u64b0\u5beb\u5ef6\u9072\u57f7\u884c\u7684\u8a9e\u6cd5\uff0c\u8acb\u5927\u5bb6\u5148\u770b\u770b\u4e0b\u5217\u4f8b\u5b50<\/p>\n

package main\n\nimport "fmt"\n\nfunc main() {\n    defer fmt.Println("world")\n\n    fmt.Println("hello")\n}<\/code><\/pre>\n
\u4e0a\u9762\u662fGo Tour<\/a>\u7684\u4e00\u500b\u4f8b\u5b50\uff0c\u4ed6\u57f7\u884c\u4e4b\u5f8c\u6703\u6709\u4ee5\u4e0b\u7684\u5167\u5bb9\u51fa\u73fe<\/p>\n
hello\nworld<\/code><\/pre>\n
\u7531\u6b64\u53ef\u77e5\u4ed6\u57f7\u884c\u7684\u5148\u5f8c\u9806\u5e8f\u6703\u5148\u8df3\u904e defer<\/code> \u9019\u95dc\u9375\u5b57\u6240\u5728\u7684\u65b9\u6cd5\uff0c\u5148\u57f7\u884c\u4e0b\u9762\u7684\u65b9\u6cd5\uff0c\u7b49\u5230\u6574\u500b\u65b9\u6cd5\u57f7\u884c\u5b8c\u7562\u5f8c\u624d\u6703\u57f7\u884c defer<\/code> \u7684\u5167\u5bb9\u3002
\n\u4e0d\u904e\u5982\u679c\u6709\u591a\u500b defer<\/code> \u90a3\u53c8\u8a72\u5982\u4f55\u6c7a\u5b9a\u57f7\u884c\u9806\u5e8f\u5462\uff0c\u9019\u4e0b\u4e00\u6bb5\u843d\u5728\u8aaa\u660e\u3002<\/p>\n
\u5ef6\u9072\u57f7\u884c\u7684\u5148\u5f8c\u9806\u5e8f<\/h3>\n
\u5728\u4e0a\u4e00\u6bb5\u843d\u8aaa\u660e\u4e86 defer<\/code> \u8ddf\u4e00\u822c\u6d41\u7a0b\u4e0d\u540c\u7684\u5730\u65b9\uff0c\u63a5\u4e0b\u4f86\u5982\u679c\u6709\u591a\u500b defer<\/code> \u90a3\u53c8\u8a72\u5982\u4f55\u6c7a\u5b9a\u8ab0\u5148\u8ab0\u5f8c\u5462\uff0c\u8acb\u5927\u5bb6\u5148\u770b\u770b\u4e0b\u5217\u4f8b\u5b50<\/p>\n
package main\n\nimport "fmt"\n\nfunc main() {\n    fmt.Println("counting")\n\n    for i := 0; i < 10; i++ {\n        defer fmt.Println("inner:", i)\n    }\n\n    for i := 0; i < 10; i++ {\n        fmt.Println("outter", i)\n    }\n\n    fmt.Println("done")\n}<\/code><\/pre>\n
defer<\/code> \u7684\u6d41\u7a0b\u662f\u4e00\u500b\u5806\u758a\u7684\u6982\u5ff5\uff0c\u5148\u653e\u9032\u53bb\u7684\u6700\u5f8c\u624d\u6703\u57f7\u884c\uff0c\u6240\u4ee5\u4e0a\u8ff0\u4f8b\u5b50\u57f7\u884c\u51fa\u4f86\u7684\u7d50\u679c\u5982\u4e0b<\/p>\n
counting\noutter 0\n.\n.\noutter 9\ndone\ninner: 9\n.\n.\ninner: 0<\/code><\/pre>\n
\u56e0\u70ba\u5217\u5370\u51fa\u4f86\u7684\u5167\u5bb9\u6709\u9ede\u591a\uff0c\u6240\u4ee5\u7b46\u8005\u7701\u7565\u5176\u4e2d\u4e00\u4e9b\u5167\u5bb9\uff0c\u7531\u4e0a\u8ff0\u4f8b\u5b50\u53ef\u4ee5\u77e5\u9053\u4e00\u822c\u6d41\u7a0b\u7684\u9032\u884c\u65b9\u5f0f\u662f\u7531\u4e0a\u800c\u4e0b\u4e00\u500b\u4e00\u500b\u57f7\u884c\uff0c\u4f46\u662f\u9047\u5230 defer<\/code> \u6703\u5148\u628a\u5b83\u653e\u5230\u5806\u758a stack<\/code> \u88e1\u9762\uff0c\u7b49\u5230\u76ee\u524d\u57f7\u884c\u7684\u9019\u65b9\u6cd5\u7d50\u675f\u5f8c\u518d\u628a\u5806\u758a\u7684\u6771\u897f\u4ee5\u5f8c\u9032\u5148\u51fa\u7684\u9806\u5e8f\u4f9d\u5e8f\u57f7\u884c\uff0c\u6240\u4ee5\u53ef\u4ee5\u770b\u5230\u4e0a\u8ff0\u7684\u7d50\u679c\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u672c\u7bc7\u8aaa\u660e\u95dc\u65bc go \u7684\u65b9\u6cd5\u6d41\u7a0b\u4e2d\u7684\u4e00\u500b\u4f8b\u5916\uff0c\u9019\u5e38\u6703\u7528\u5728\u9700\u8981\u5148\u56de\u8abf\u7684\u72c0\u6cc1\uff0c\u6216\u662f\u9700\u8981\u5148\u8b80\u53d6\u6a94\u6848\u518d\u4f5c\u5f8c\u7e8c\u8b80\u9ee8\u5b8c\u6210\u7684\u5167\u5bb9\u6642\u53ef\u4ee5\u4f7f\u7528\u3002\u4e0b\u7bc7\u8981\u8ddf\u5927\u5bb6\u4ecb\u7d39\u95dc\u65bc go \u7684\u591a\u57f7\u884c\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5ef6\u9072\u57f7\u884c \u8aaa\u660e\u5b8c\u6307\u6a19\u3001\u65b9\u6cd5\u3001\u985e\u5225\u8207\u4ecb\u9762\u5f8c\u6211\u5011\u518d\u56de\u5230\u95dc\u65bc go \u7684\u65b9\u6cd5\u6d41\u7a0b\u7684\u4ecb\u7d39\uff0c go \u6d41\u7a0b\u662f\u7531\u4e0a\u800c\u4e0b\u9010\u6b65\u57f7\u884c … <\/p>\n
\u95b1\u8b80\u5168\u6587\u3008Iris \u9019\u500b\u5728 go \u8a9e\u8a00\u4e0a\u5730\u8868\u6700\u5feb\u7684\u7db2\u9801\u6846\u67b6-\u5ef6\u9072\u57f7\u884c\u3009<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[2],"tags":[158,81],"class_list":["post-1587","post","type-post","status-publish","format-standard","hentry","category-develop","tag-2020ironman","tag-go"],"_links":{"self":[{"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/posts\/1587","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/comments?post=1587"}],"version-history":[{"count":6,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/posts\/1587\/revisions"}],"predecessor-version":[{"id":2678,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/posts\/1587\/revisions\/2678"}],"wp:attachment":[{"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/media?parent=1587"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/categories?post=1587"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/tags?post=1587"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}