{"id":208168,"date":"2025-07-08T13:26:34","date_gmt":"2025-07-08T05:26:34","guid":{"rendered":"https:\/\/server.hk\/cnblog\/208168\/"},"modified":"2025-07-08T13:26:34","modified_gmt":"2025-07-08T05:26:34","slug":"%e5%a6%82%e6%9e%9c%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e5%9c%a8%e6%94%be%e5%85%a5%e9%80%9a%e9%81%93%e5%90%8e%e5%a4%b1%e5%8e%bb%e4%bd%9c%e7%94%a8%e5%9f%9f%e4%bc%9a%e5%8f%91%e7%94%9f%e4%bb%80%e4%b9%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208168\/","title":{"rendered":"\u5982\u679c\u5c40\u90e8\u53d8\u91cf\u5728\u653e\u5165\u901a\u9053\u540e\u5931\u53bb\u4f5c\u7528\u57df\u4f1a\u53d1\u751f\u4ec0\u4e48\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5982\u679c\u5c40\u90e8\u53d8\u91cf\u5728\u653e\u5165\u901a\u9053\u540e\u5931\u53bb\u4f5c\u7528\u57df\u4f1a\u53d1\u751f\u4ec0\u4e48\uff1f<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-29 20:09:32<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u6700\u8fd1\u53d1\u73b0\u4e0d\u5c11\u5c0f\u4f19\u4f34\u90fd\u5bf9Golang<\/span>\u5f88\u611f\u5174\u8da3\uff0c\u6240\u4ee5\u4eca\u5929\u7ee7\u7eed\u7ed9\u5927\u5bb6\u4ecb\u7ecdGolang<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\uff0c\u672c\u6587\u300a\u5982\u679c\u5c40\u90e8\u53d8\u91cf\u5728\u653e\u5165\u901a\u9053\u540e\u5931\u53bb\u4f5c\u7528\u57df\u4f1a\u53d1\u751f\u4ec0\u4e48\uff1f\u300b<\/span>\u4e3b\u8981\u5185\u5bb9\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01\u5f53\u7136\u5982\u679c\u9605\u8bfb\u672c\u6587\u65f6\u5b58\u5728\u4e0d\u540c\u60f3\u6cd5\uff0c\u53ef\u4ee5\u5728\u8bc4\u8bba\u4e2d\u8868\u8fbe\uff0c\u4f46\u662f\u8bf7\u52ff\u4f7f\u7528\u8fc7\u6fc0\u7684\u63aa\u8f9e~<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u7279\u522b\u662f\u5f53\u53d8\u91cf\u662f\u5728\u672c\u5730\u8303\u56f4\u5185\u751f\u6210\u65f6\u3002\u5b83\u7684\u751f\u5b58\u65f6\u95f4\u6709\u591a\u957f\uff1f<\/p>\n

\u4f8b\u5982\uff0c\u7ed9\u5b9a\u4e00\u4e2a\u5faa\u73af\u521b\u5efa 10 \u4e2a\u72d7\u5e76\u5c06\u6307\u9488\u4f20\u9012\u5230\u4e00\u4e2a\u901a\u9053\u4e2d\uff0c\u4f8b\u5982<\/p>\n

for i := 0; i < 10; i++ {\n    dogaddr := produce(i)    \/\/ assume we already have: func produce(i int) *dog \n    c <- dogaddr             \/\/ c: channel\n}<\/pre>\n
\u5f53\u5faa\u73af\u7ed3\u675f\u65f6\uff0c\u72d7\u4f1a\u7acb\u5373\u88ab\u91ca\u653e\u5417\uff1f\u5b83\u4eec\u53ea\u4f1a\u5b58\u6d3b\u4e00\u6bb5\u9b54\u6cd5\u65f6\u95f4\u7b49\u5f85\u88ab\u6d88\u8017\u5417\uff1f\u88ab\u6d88\u8017\u540e\u5b83\u4eec\u4f1a\u88ab\u91ca\u653e\u5417\uff1f<\/p>\n
\u6211\u7528\u4e00\u4e2a\u7b80\u5355\u7684\u4ee3\u7801\u5bf9\u6b64\u8fdb\u884c\u4e86\u6d4b\u8bd5\uff0c\u7ed3\u679c\u4f3c\u4e4e\u8868\u660e\u5c40\u90e8\u53d8\u91cf\u5c06\u6c38\u8fdc\u5b58\u5728\u3002<\/p>\n
package main\n\nimport (\n    \"fmt\"\n    \"time\"\n)\nfunc main() {\n    var a int\n    var c chan *int = make(chan *int, 1000)\n    var m map[int]*int = make(map[int]*int)\n    for i := 0; i < 10; i++ {                     \/\/ this is generation-loop\n        x := i\n        m[i] = &x\n        fmt.Println(i, \"mapping to: \", &a)\n        c <- &x\n    }                                            \/\/ the generation-loop breaks here\n    for i := 0; i < 10; i++ {\n        fmt.Println(i, \"stored pointer: \", m[i]) \/\/ we can still call the variables \n    }\n    for i := 0; i < 10; i++ {\n        fmt.Println(i, \"stored value: \", *m[i])  \/\/ we can still call the variables \n        p := <-c\n        fmt.Println(i, \"channel value: \", *p)    \/\/ we can still call the variables \n    }\n    time.Sleep(20 * time.Second)\n\n}<\/pre>\n
\u6211\u5f88\u56f0\u60d1\u4e3a\u4ec0\u4e48\u4f1a\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\u3002\u53ea\u8981\u5c40\u90e8\u5757\u5b8c\u6210\uff0c\u5c40\u90e8\u53d8\u91cf\u5c31\u4e0d\u4f1a\u5931\u53bb\u751f\u547d\u5417\uff1f\u5982\u679c\u6211\u4f7f\u7528\u7684\u65b9\u6cd5\u662f\u9519\u8bef\u7684\uff0c\u90a3\u4e48\u5728 go \u4e2d\u5c06\u5c40\u90e8\u53d8\u91cf\u4f20\u9012\u7ed9\u5916\u90e8\u7528\u6237\u7684\u6b63\u786e\u65b9\u6cd5\u662f\u4ec0\u4e48\uff1f<\/p>\n
 <\/p>\n
\u6b63\u786e\u7b54\u6848<\/h2>\n
 <\/p>\n
go \u662f\u5783\u573e\u6536\u96c6\u5668\u3002\u5f53\u4e0d\u518d\u6709\u5bf9\u8d44\u6e90\u7684\u5f15\u7528\uff08\u5305\u62ec\u5f53\u524d\u4fdd\u5b58\u5728\u7f13\u51b2\u901a\u9053\u4e2d\u7684\u5f15\u7528\uff09\u65f6\uff0c\u8d44\u6e90\u5c06\u88ab\u91ca\u653e\u3002\u60a8\u4e0d\u5fc5\u62c5\u5fc3\u91ca\u653e\u540e\u4f7f\u7528\uff0c\u5e76\u4e14\u8fd4\u56de\/\u53d1\u9001\u6307\u5411\u201c\u5c40\u90e8\u201d\u53d8\u91cf\u7684\u6307\u9488\u6ca1\u6709\u4efb\u4f55\u95ee\u9898\u3002<\/p>\n
\u53ea\u8981\u5c40\u90e8\u5757\u5b8c\u6210\uff0c\u5c40\u90e8\u53d8\u91cf\u5c31\u4e0d\u4f1a\u5931\u53bb\u751f\u547d\u5417\uff1f<\/p>\n
\u4e0d\uff0c\u5f53\u5783\u573e\u6536\u96c6\u5668\u627e\u4e0d\u5230\u5bf9\u5176\u503c\u7684\u8fdb\u4e00\u6b65\u5f15\u7528\u65f6\uff0c\u5b83\u4eec\u5c31\u4f1a\u201c\u5931\u53bb\u751f\u547d\u201d\u3002\u8d85\u51fa\u5176\u5c01\u95ed\u8303\u56f4\u7684\u53d8\u91cf\u4f1a\u81ea\u52a8\u5728\u5806\u4e0a\u5206\u914d\uff0c\u5e76\u4e14\u5728\u6d41\u4ece\u5c01\u95ed\u8303\u56f4\u8fd4\u56de\u4e14\u5176\u5806\u6808\u5185\u5b58\u4e22\u5931\u540e\u53ef\u4ee5\u5b89\u5168\u4f7f\u7528\u3002<\/p>\n
\u8fd9\u6837\u60f3\uff1ago \u4e2d\u4e0d\u5b58\u5728\u8d85\u51fa\u5176\u4f5c\u7528\u57df\u7684\u201c\u5c40\u90e8\u201d\u53d8\u91cf\u3002\u90a3\u662f\u4e0d\u53ef\u80fd\u7684\u3002\u6839\u636e\u5b9a\u4e49\uff0c\u8d85\u51fa\u5176\u58f0\u660e\u8303\u56f4\u7684\u53d8\u91cf\u4e0d\u662f\u201c\u672c\u5730\u201d\u53d8\u91cf\uff0c\u5b83\u4f1a\u81ea\u52a8\u79fb\u52a8\u5230\u5806\u4e2d\uff0c\u5e76\u4e14\u53ea\u8981\u6709\u4efb\u4f55\u4e1c\u897f\u7ee7\u7eed\u5f15\u7528\u5b83\uff0c\u5b83\u5c31\u4e00\u76f4\u5b58\u5728\u3002<\/p>\n
\u503c\u5f97\u6269\u5c55\u7684\u5185\u5bb9\uff1a<\/p>\n
for i := 0; i < 10; i++ {\n   dogAddr := produce(i)    \/\/ assume we already have: func produce(i int) *Dog \n   c <- dogAddr             \/\/ c: channel\n}<\/pre>\n
\u5f53\u5faa\u73af\u7ed3\u675f\u65f6\uff0c\u72d7\u4f1a\u7acb\u5373\u88ab\u91ca\u653e\u5417\uff1f<\/p>\n
\u60a8\u7684\u56f0\u60d1\u4f3c\u4e4e\u6e90\u4e8e dogaddr<\/code> \u53d8\u91cf\u672c\u8eab\u5728\u67d0\u79cd\u7a0b\u5ea6\u4e0a\u4e0e\u5b83\u6307\u5411\u7684\u5185\u5b58\u540c\u4e49\u7684\u60f3\u6cd5\uff0c\u6216\u8005\u6e90\u4e8e dogaddr<\/code> \u6307\u9488\u8d85\u51fa\u8303\u56f4\u4f1a\u4ee5\u67d0\u79cd\u65b9\u5f0f\u5bfc\u81f4\u5b83\u6307\u5411\u7684\u5185\u5b58\u7684\u9519\u8bef\u60f3\u6cd5\u88ab\u56de\u6536\uff0c\u800c\u5176\u4ed6\u4e1c\u897f\u4ecd\u7136\u6307\u5411\u5b83\uff0c\u8fd9\u5728\u4efb\u4f55\u8bed\u8a00\u4e2d\u90fd\u4e0d\u662f\u8fd9\u6837\uff0c\u65e0\u8bba\u5783\u573e\u56de\u6536\u4e0e\u5426\u3002<\/p>\n
dogaddr<\/code> \u6307\u9488\u4ec5\u5305\u542b\u4e00\u4e2a\u5730\u5740\u3002\u8be5\u53d8\u91cf\u786e\u5b9e<\/em>\u5728\u5faa\u73af\u7684\u6bcf\u6b21\u8fed\u4ee3\u4e2d\u90fd\u4f1a\u8d85\u51fa\u8303\u56f4\uff0c\u4f46\u5b83\u6240\u4fdd\u5b58\u7684\u503c\uff08\u5806\u4e0a dog<\/code> \u5bf9\u8c61\u7684\u5730\u5740\uff09\u5df2\u6309\u503c\u590d\u5236\u5230\u901a\u9053\u4e2d\u3002\u662f\u7684\uff0cdogaddr<\/code> \u662f\u4e00\u4e2a\u201c\u672c\u5730\u201d\u53d8\u91cf\uff0c\u4f46\u8fd9\u5e76\u4e0d\u771f\u6b63\u76f8\u5173\u3002\u5b83\u7684\u503c\u4e0d\u662f\u201c\u672c\u5730\u201d\uff0c\u5b83\u7684\u503c\u662f\u5728 process()<\/code> \u5185\u90e8\u5206\u914d\u7684\u67d0\u4e2a\u975e\u672c\u5730 dog<\/code> \u5bf9\u8c61\u7684\u5185\u5b58\u5730\u5740\u3002<\/p>\n
\u6211\u7528\u4e00\u4e2a\u7b80\u5355\u7684\u4ee3\u7801\u5bf9\u6b64\u8fdb\u884c\u4e86\u6d4b\u8bd5\uff0c\u7ed3\u679c\u4f3c\u4e4e\u8868\u660e\u5c40\u90e8\u53d8\u91cf\u5c06\u6c38\u8fdc\u5b58\u5728\u3002<\/p>\n
\u4e0d\uff0c\u60a8\u521a\u521a\u8868\u660e\uff0c\u53ea\u8981\u60a8\u5f15\u7528\u4e86\u4e00\u70b9\u5185\u5b58\uff0c\u8be5\u5185\u5b58\u5c31\u4e0d\u4f1a\u88ab\u5783\u573e\u6536\u96c6\u3002<\/p>\n
\u4eca\u5929\u5173\u4e8e\u300a\u5982\u679c\u5c40\u90e8\u53d8\u91cf\u5728\u653e\u5165\u901a\u9053\u540e\u5931\u53bb\u4f5c\u7528\u57df\u4f1a\u53d1\u751f\u4ec0\u4e48\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/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-208168","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208168","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=208168"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208168\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=208168"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=208168"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=208168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}