{"id":75616,"date":"2024-03-01T15:31:21","date_gmt":"2024-03-01T07:31:21","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=75616"},"modified":"2024-03-01T15:31:35","modified_gmt":"2024-03-01T07:31:35","slug":"go%e8%af%ad%e8%a8%80%e4%b8%ad%e7%9a%84channel%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/75616.html","title":{"rendered":"Go\u8bed\u8a00\u4e2d\u7684channel\u4f7f\u7528\u65b9\u6cd5"},"content":{"rendered":"

\"Go\u8bed\u8a00\u4e2d\u7684channel\u4f7f\u7528\u65b9\u6cd5\"<\/p>\n

# Go\u8bed\u8a00\u4e2d\u7684Channel\u4f7f\u7528\u65b9\u6cd5<\/strong><\/h2>\n

## \u5f15\u8a00<\/p>\n

Go\u8bed\u8a00\u7684Channel\u662f\u5e76\u53d1\u7f16\u7a0b\u4e2d\u7684\u4e00\u4e2a\u6838\u5fc3\u6982\u5ff5\uff0c\u4e3b\u8981\u7528\u4e8e\u5728\u4e0d\u540c\u7684Goroutine\u4e4b\u95f4\u8fdb\u884c\u6570\u636e\u4f20\u9012\u548c\u901a\u4fe1\u3002<\/strong> \u5728Go\u8bed\u8a00\u4e2d\uff0cChannel\u7684\u4f7f\u7528\u65b9\u6cd5\u4e3b\u8981\u5206\u4e3a\u521b\u5efa\u3001\u53d1\u9001\u3001\u63a5\u6536\u548c\u5173\u95ed\u56db\u4e2a\u65b9\u9762\u3002\u5176\u4e2d\uff0c\u521b\u5efaChannel<\/strong> \u662f\u57fa\u7840\uff0c\u6d89\u53ca\u5230\u4e0d\u540c\u7c7b\u578b\u7684Channel\u53ca\u5176\u7279\u6027\uff1b\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e<\/strong> \u662f\u6838\u5fc3\uff0c\u5305\u62ec\u6570\u636e\u7684\u540c\u6b65\u548c\u5f02\u6b65\u4f20\u9012\uff1b\u800c\u5173\u95edChannel<\/strong> \u5219\u662f\u7ed3\u675f\u901a\u4fe1\u7684\u91cd\u8981\u624b\u6bb5\uff0c\u5173\u4e4e\u7a0b\u5e8f\u7684\u5b89\u5168\u6027\u548c\u6548\u7387\u3002<\/p>\n

\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5c06\u91cd\u70b9\u4ecb\u7ecd\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u7684\u8fc7\u7a0b<\/strong>\uff0c\u56e0\u4e3a\u8fd9\u662fChannel\u4f7f\u7528\u4e2d\u6700\u4e3a\u5e38\u89c1\u4e14\u5173\u952e\u7684\u90e8\u5206\u3002\u6211\u4eec\u5c06\u63a2\u8ba8\u5982\u4f55\u901a\u8fc7Channel\u5728Goroutines\u4e4b\u95f4\u4f20\u9012\u4fe1\u606f\uff0c\u4ee5\u53ca\u5982\u4f55\u9ad8\u6548\u5b89\u5168\u5730\u5904\u7406\u6570\u636e\u901a\u4fe1\u3002<\/p>\n

## \u4e00\u3001\u521b\u5efaCHANNEL<\/p>\n

### 1. Channel\u7684\u57fa\u672c\u6982\u5ff5<\/p>\n

\u5728Go\u8bed\u8a00\u4e2d\uff0cChannel\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u7c7b\u578b\uff0c\u7528\u4e8e\u5728\u4e0d\u540c\u7684Goroutine\u4e4b\u95f4\u4f20\u9012\u6570\u636e\u3002\u5b83\u53ef\u4ee5\u88ab\u89c6\u4e3a\u4e00\u79cd\u6570\u636e\u6d41\uff0cGoroutines\u53ef\u4ee5\u901a\u8fc7\u5b83\u53d1\u9001\u6216\u63a5\u6536\u6570\u636e\u3002Channel\u7684\u57fa\u672c\u64cd\u4f5c\u5305\u62ec\u521b\u5efa\u3001\u53d1\u9001\u6570\u636e\u3001\u63a5\u6536\u6570\u636e\u548c\u5173\u95ed\u3002<\/p>\n

### 2. \u521b\u5efaChannel\u7684\u65b9\u6cd5<\/p>\n

\u521b\u5efaChannel\u7684\u57fa\u672c\u8bed\u6cd5\u662f\u4f7f\u7528\u5185\u7f6e\u7684`make`\u51fd\u6570\u3002\u4f8b\u5982\uff0c`ch := make(chan int)` \u521b\u5efa\u4e86\u4e00\u4e2a\u4f20\u9012\u6574\u578b\u6570\u636e\u7684Channel\u3002Channel\u53ef\u4ee5\u662f\u5e26\u7f13\u51b2\u7684\u6216\u4e0d\u5e26\u7f13\u51b2\u7684\uff0c\u8fd9\u53d6\u51b3\u4e8e\u5b83\u7684\u58f0\u660e\u65b9\u5f0f\u3002\u4e0d\u5e26\u7f13\u51b2\u7684Channel\u5728\u53d1\u9001\u548c\u63a5\u6536\u65f6\u662f\u540c\u6b65\u7684\uff0c\u800c\u5e26\u7f13\u51b2\u7684Channel\u5219\u5141\u8bb8\u5f02\u6b65\u4f20\u8f93\u6570\u636e\u3002<\/p>\n

## \u4e8c\u3001\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e<\/p>\n

### 1. \u6570\u636e\u7684\u53d1\u9001\u548c\u63a5\u6536<\/p>\n

\u5728Go\u8bed\u8a00\u4e2d\uff0c\u4f7f\u7528`<-`\u64cd\u4f5c\u7b26\u6765\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3002\u4f8b\u5982\uff0c`ch <- v` \u8868\u793a\u5411Channel `ch` \u53d1\u9001\u503c`v`\uff0c\u800c `v := <-ch` \u8868\u793a\u4eceChannel `ch` \u63a5\u6536\u6570\u636e\u5e76\u5c06\u5176\u8d4b\u503c\u7ed9\u53d8\u91cf`v`\u3002<\/p>\n

### 2. \u540c\u6b65\u548c\u5f02\u6b65\u4f20\u8f93<\/p>\n

\u4e0d\u5e26\u7f13\u51b2\u7684Channel\u8981\u6c42\u53d1\u9001\u8005\u548c\u63a5\u6536\u8005\u540c\u65f6\u51c6\u5907\u597d\uff0c\u8fd9\u662f\u4e00\u79cd\u540c\u6b65\u7684\u901a\u4fe1\u65b9\u5f0f\u3002\u800c\u5e26\u7f13\u51b2\u7684Channel\u5219\u5141\u8bb8\u6570\u636e\u5728\u7f13\u51b2\u533a\u5185\u7b49\u5f85\uff0c\u4ece\u800c\u5b9e\u73b0\u5f02\u6b65\u901a\u4fe1\u3002\u8fd9\u79cd\u673a\u5236\u5728\u5904\u7406\u9ad8\u5e76\u53d1\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n

## \u4e09\u3001CHANNEL\u7684\u9ad8\u7ea7\u4f7f\u7528<\/p>\n

### 1. \u8303\u56f4\u548c\u5173\u95ed<\/p>\n

\u5bf9\u4e8eChannel\uff0c\u4e00\u4e2a\u5e38\u89c1\u7684\u6a21\u5f0f\u662f\u4f7f\u7528`range`\u5faa\u73af\u8fdb\u884c\u8fed\u4ee3\uff0c\u76f4\u5230\u5b83\u88ab\u5173\u95ed\u3002\u5173\u95ed\u4e00\u4e2aChannel\u610f\u5473\u7740\u4e0d\u518d\u6709\u503c\u4f1a\u88ab\u53d1\u9001\u5230\u5b83\u3002\u8fd9\u662f\u4e00\u79cd\u4f18\u96c5\u7684\u7ed3\u675fGoroutine\u901a\u4fe1\u7684\u65b9\u5f0f\u3002<\/p>\n

### 2. \u9009\u62e9\u548c\u591a\u8def\u590d\u7528<\/p>\n

Go\u8bed\u8a00\u7684`select`\u8bed\u53e5\u53ef\u4ee5\u540c\u65f6\u5904\u7406\u591a\u4e2aChannel\u7684\u53d1\u9001\u548c\u63a5\u6536\u64cd\u4f5c\u3002\u5b83\u4f1a\u9009\u62e9\u4e00\u4e2a\u5c31\u7eea\u7684Channel\u8fdb\u884c\u901a\u4fe1\uff0c\u8fd9\u4f7f\u5f97Goroutines\u80fd\u591f\u540c\u65f6\u7b49\u5f85\u591a\u4e2a\u901a\u4fe1\u64cd\u4f5c\uff0c\u589e\u5f3a\u4e86\u7a0b\u5e8f\u7684\u7075\u6d3b\u6027\u548c\u6548\u7387\u3002<\/p>\n

## \u56db\u3001CHANNEL\u7684\u6700\u4f73\u5b9e\u8df5<\/p>\n

### 1. \u907f\u514d\u6b7b\u9501<\/p>\n

\u5728\u4f7f\u7528Channel\u65f6\uff0c\u9700\u8981\u7279\u522b\u6ce8\u610f\u907f\u514d\u6b7b\u9501\u60c5\u51b5\u7684\u53d1\u751f\u3002\u6b7b\u9501\u901a\u5e38\u53d1\u751f\u5728Goroutines\u548cChannels\u4e4b\u95f4\uff0c\u5f53\u5b83\u4eec\u76f8\u4e92\u7b49\u5f85\u5bf9\u65b9\u65f6\uff0c\u7a0b\u5e8f\u5c06\u65e0\u6cd5\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n

### 2. \u5408\u7406\u4f7f\u7528\u7f13\u51b2<\/p>\n

\u5408\u7406\u4f7f\u7528\u7f13\u51b2Channel\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u4f46\u662f\uff0c\u8fc7\u5ea6\u4f7f\u7528\u6216\u4e0d\u5f53\u4f7f\u7528\u53ef\u80fd\u5bfc\u81f4\u7a0b\u5e8f\u903b\u8f91\u590d\u6742\u6216\u51fa\u73b0\u96be\u4ee5\u8ffd\u8e2a\u7684\u9519\u8bef\u3002<\/p>\n

## \u7ed3\u8bed<\/p>\n

**Go\u8bed\u8a00\u7684Channel\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u5e76\u53d1\u5de5\u5177\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u6d01\u9ad8\u6548\u7684\u65b9\u5f0f\u6765\u8fdb\u884cGoroutines\u4e4b\u95f4\u7684\u901a\u4fe1\u3002<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

\u4ec0\u4e48\u662fGo\u8bed\u8a00\u4e2d\u7684channel\uff1f<\/strong><\/p>\n

\u5728Go\u8bed\u8a00\u4e2d\uff0cchannel\u662f\u4e00\u79cd\u7528\u6765\u5728\u591a\u4e2agoroutine\u4e4b\u95f4\u4f20\u9012\u6570\u636e\u7684\u901a\u4fe1\u673a\u5236\u3002\u5b83\u7c7b\u4f3c\u4e8e\u7ba1\u9053\uff0c\u53ef\u4ee5\u7528\u6765\u5728goroutine\u4e4b\u95f4\u540c\u6b65\u6570\u636e\u7684\u4f20\u8f93\u3002<\/p>\n

\u5982\u4f55\u521b\u5efa\u548c\u4f7f\u7528channel\uff1f<\/strong><\/p>\n

\u8981\u521b\u5efa\u4e00\u4e2achannel\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684make\u51fd\u6570\uff0c\u5e76\u6307\u5b9achannel\u7684\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528`ch := make(chan int)`\u6765\u521b\u5efa\u4e00\u4e2a\u6574\u578b\u7c7b\u578b\u7684channel\u3002\u7136\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528`<-`\u64cd\u4f5c\u7b26\u6765\u5411channel\u53d1\u9001\u6570\u636e\u6216\u4ecechannel\u63a5\u6536\u6570\u636e\u3002\n\n\u5982\u4f55\u907f\u514dchannel\u7684\u963b\u585e\uff1f<\/strong><\/p>\n

\u5728\u4f7f\u7528channel\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u963b\u585e\u7684\u60c5\u51b5\u3002\u5982\u679c\u53d1\u9001\u6570\u636e\u7684channel\u5df2\u6ee1\uff0c\u6216\u8005\u5c1d\u8bd5\u4ece\u4e00\u4e2a\u7a7a\u7684channel\u63a5\u6536\u6570\u636e\uff0c\u90fd\u4f1a\u5bfc\u81f4\u963b\u585e\u3002\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5e26\u7f13\u51b2\u7684channel\u6765\u907f\u514d\u963b\u585e\uff0c\u5373\u5728\u521b\u5efachannel\u65f6\u6307\u5b9a\u7f13\u51b2\u533a\u7684\u5927\u5c0f\uff0c\u5982`ch := make(chan int, 10)`\u3002\u8fd9\u6837\u5728\u53d1\u9001\u6570\u636e\u65f6\u53ea\u6709\u5f53\u7f13\u51b2\u533a\u5df2\u6ee1\u65f6\u624d\u4f1a\u963b\u585e\uff0c\u63a5\u6536\u6570\u636e\u65f6\u53ea\u6709\u5f53\u7f13\u51b2\u533a\u4e3a\u7a7a\u65f6\u624d\u4f1a\u963b\u585e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"# Go\u8bed\u8a00\u4e2d\u7684Channel\u4f7f\u7528\u65b9\u6cd5 ## \u5f15\u8a00 Go\u8bed\u8a00\u7684Channel\u662f\u5e76\u53d1\u7f16\u7a0b\u4e2d\u7684\u4e00\u4e2a\u6838\u5fc3\u6982\u5ff5\uff0c\u4e3b\u8981\u7528 […]","protected":false},"author":1,"featured_media":75619,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/75616"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=75616"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/75616\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/75619"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=75616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=75616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=75616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}