{"id":207032,"date":"2025-07-08T08:50:24","date_gmt":"2025-07-08T00:50:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207032\/"},"modified":"2025-07-08T08:50:24","modified_gmt":"2025-07-08T00:50:24","slug":"%e5%b0%86%e6%a0%87%e5%87%86-golang-map-%e8%bd%ac%e6%8d%a2%e4%b8%ba-sync-map-%e4%bb%a5%e9%81%bf%e5%85%8d%e7%ab%9e%e4%ba%89%e6%9d%a1%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207032\/","title":{"rendered":"\u5c06\u6807\u51c6 Golang Map \u8f6c\u6362\u4e3a Sync.Map \u4ee5\u907f\u514d\u7ade\u4e89\u6761\u4ef6"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5c06\u6807\u51c6 Golang Map \u8f6c\u6362\u4e3a Sync.Map \u4ee5\u907f\u514d\u7ade\u4e89\u6761\u4ef6<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-19 16:27:34<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u4eb2\u7231\u7684\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5982\u679c\u4f60\u70b9\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\uff0c\u8bf4\u660e\u4f60\u5bf9\u300a\u5c06\u6807\u51c6 Golang Map \u8f6c\u6362\u4e3a Sync.Map \u4ee5\u907f\u514d\u7ade\u4e89\u6761\u4ef6\u300b\u5f88\u611f\u5174\u8da3\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u7ed9\u5927\u5bb6\u8be6\u7ec6\u89e3\u6790\u4e00\u4e0b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u6240\u6709\u8ba4\u771f\u8bfb\u5b8c\u7684\u7ae5\u978b\u4eec\uff0c\u90fd\u6709\u5b9e\u8d28\u6027\u7684\u63d0\u9ad8\u3002<\/p>\n

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

\u6211\u6709\u4ee5\u4e0b\u4ee3\u7801\u884c\uff1a<\/p>\n

var a_map = make(map[string] []int)<\/pre>\n
\u6211\u7684\u90e8\u5206\u4ee3\u7801\u4f7f\u7528 a_map \u53d8\u91cf\uff0c\u5076\u5c14\u4f1a\u629b\u51fa\u4ee5\u4e0b\u9519\u8bef\uff1a<\/p>\n
fatal error: concurrent map read and map write<\/pre>\n
\u4e3a\u4e86\u5c1d\u8bd5\u521b\u5efa\u4e00\u4e2a\u66f4\u5f3a\u5927\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u4e00\u4e2a\u6ca1\u6709\u6b64\u7c7b\u9519\u8bef\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u6211\u60f3\u4f7f\u7528sync.map\u800c\u4e0d\u662f\u901a\u7528\u5730\u56fe\u3002\u6211\u8fd9\u6837\u505a\u7684\u7075\u611f\u6765\u81ea\u4e8e\u8fd9\u4e2a\u5806\u6808\u6ea2\u51fa\u95ee\u9898\u63d0\u4f9b\u7684\u552f\u4e00\u7b54\u6848\u3002\u4f46\u662f\uff0c\u6211\u4e0d\u6e05\u695a\u8fd9\u6837\u505a\u7684\u6b63\u786e\u8bed\u6cd5\u3002<\/p>\n
\u5728\u6211\u7684\u7b2c\u4e00\u6b21\u5c1d\u8bd5\u4e2d\uff0c\u6211\u4f7f\u7528\u4e86\u4ee5\u4e0b\u4ee3\u7801\u884c\uff1a<\/p>\n
var a_map = make(sync.map[string] []int)<\/pre>\n
\u8fd9\u5bfc\u81f4\u4e86\u4ee5\u4e0b\u9519\u8bef\uff1a<\/p>\n
...syntax error: unexpected ], expecting expression<\/pre>\n
\u7136\u540e\u6211\u5c1d\u8bd5\u4e86\uff1a<\/p>\n
sync_map := new(sync.map)\n var a_map = make(sync_map[string] []int)<\/pre>\n
\u8fd9\u5bfc\u81f4\u4e86\u540c\u6837\u7684\u9519\u8bef\uff1a<\/p>\n
...syntax error: unexpected ], expecting expression<\/pre>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
 \u4e0d\u662f go map<\/code>\uff0c\u56e0\u6b64\u60a8\u4e0d\u80fd\u4f7f\u7528 a_map[\"key\"]<\/code> \u8bed\u6cd5\u3002\u76f8\u53cd\uff0c\u5b83\u662f\u4e00\u4e2a struct<\/code>\uff0c\u5176\u4e2d\u5305\u542b\u63d0\u4f9b\u5e38\u7528\u6620\u5c04\u64cd\u4f5c\u7684\u65b9\u6cd5\u3002\u4f7f\u7528\u5b83\u7684\u8bed\u6cd5\u662f\uff1a<\/p>\n
var m sync.Map\nm.Store(\"example\", []int{1, 2, 3})\nfmt.Println(m.Load(\"example\")) \/\/ [1 2 3] true\n<\/pre>\n
— <\/p>\n
\u6839\u636e\u5e76\u53d1\u6e90\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u5bf9\u6bcf\u4e2a\u952e\u4e0b\u7684 []int \u503c\u8fdb\u884c\u7c7b\u4f3c\u7684\u540c\u6b65\uff0c\u4f46sync.map \u4e0d\u4f1a\u4e3a\u60a8\u63d0\u4f9b\u8fd9\u79cd\u540c\u6b65\u3002 sync.map \u4ec5\u63d0\u4f9b\u6bcf\u4e2a\u952e\u7684\u52a0\u8f7d\/\u5b58\u50a8\u540c\u6b65\u3002\u5982\u679c\u662f\u8fd9\u6837\uff0c\u8bf7\u53d1\u8868\u8bc4\u8bba\uff0c\u6211\u4eec\u53ef\u4ee5\u8fdb\u4e00\u6b65\u5e2e\u52a9\u60a8\u3002<\/p>\n
\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300a\u5c06\u6807\u51c6 Golang Map \u8f6c\u6362\u4e3a Sync.Map \u4ee5\u907f\u514d\u7ade\u4e89\u6761\u4ef6\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591aGolang\u77e5\u8bc6\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-207032","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207032","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=207032"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207032\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207032"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207032"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207032"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}