{"id":207221,"date":"2025-07-08T08:29:03","date_gmt":"2025-07-08T00:29:03","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207221\/"},"modified":"2025-07-08T08:29:03","modified_gmt":"2025-07-08T00:29:03","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-golang-%e4%b8%ad%e6%89%a7%e8%a1%8c%e4%b9%8b%e5%89%8d%e5%81%9c%e6%ad%a2-afterfunc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207221\/","title":{"rendered":"\u5982\u4f55\u5728 Golang \u4e2d\u6267\u884c\u4e4b\u524d\u505c\u6b62 AfterFunc"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5982\u4f55\u5728 Golang \u4e2d\u6267\u884c\u4e4b\u524d\u505c\u6b62 AfterFunc<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-20 21:54:43<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u600e\u4e48\u5165\u95e8Golang\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300a\u5982\u4f55\u5728 Golang \u4e2d\u6267\u884c\u4e4b\u524d\u505c\u6b62 AfterFunc\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b<\/p>\n

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

var funcTimer *time.Timer\n\nfunc AddItem(){\n\n   defer funcTimer.Stop()\n\n   funcTimer = time.AfterFunc(1000*time.Millisecond, func() {\n\n        fmt.Println(\"Executed\")\n\n   })\n\n}<\/pre>\n
\u6211\u7684\u76ee\u6807\u662f\u5c1d\u8bd5\u4f7f\u8fd9\u4e2a\u51fd\u6570\u6210\u4e3a\u53cd\u8df3\u51fd\u6570\uff0c\u5982\u679c\u5feb\u901f\u8c03\u7528\u5b83\u800c\u6ca1\u6709\u65f6\u95f4\u5ef6\u8fdf\uff0c\u5219 func \u8c03\u7528\u5c06\u4e0d\u4f1a\u8fd0\u884c\u3002<\/p>\n
\u6211\u7684\u95ee\u9898\u662f functimer.stop()<\/code> \u4f3c\u4e4e\u6ca1\u6709\u505c\u6b62 time.afterfunc<\/code> \u51fd\u6570<\/p>\n
\u5728 javascript \u4e2d\uff0c\u76f8\u5f53\u4e8e\u4f7f\u7528 cleartimeout \u548c settimeout\u3002<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u5c1d\u8bd5 \uff1a<\/p>\n
 \u8db3\u591f\u77ed\uff0c\u53ef\u4ee5\u9075\u5faa\uff1a<\/p>\n
func new(after time.duration) func(f func()) {\n    d := &debouncer{after: after}\n\n    return func(f func()) {\n        d.add(f)\n    }\n}\n\ntype debouncer struct {\n    mu    sync.mutex\n    after time.duration\n    timer *time.timer\n}\n\nfunc (d *debouncer) add(f func()) {\n    d.mu.lock()\n    defer d.mu.unlock()\n\n    if d.timer != nil {\n        d.timer.stop()\n    }\n    d.timer = time.afterfunc(d.after, f)\n}<\/pre>\n
\u4f7f\u7528\uff1a<\/p>\n
debounces := New(100 * time.Millisecond)\n\ndebounces(func(){fmt.Println(\"a\")})\ndebounces(func(){fmt.Println(\"b\")})\ndebounces(func(){fmt.Println(\"c\")}) \/\/ last one wins<\/pre>\n<\/p>\n
\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300a\u5982\u4f55\u5728 Golang \u4e2d\u6267\u884c\u4e4b\u524d\u505c\u6b62 AfterFunc\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03Golang\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\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-207221","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207221","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=207221"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207221\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}