{"id":649,"date":"2025-11-14T01:52:28","date_gmt":"2025-11-14T01:52:28","guid":{"rendered":"https:\/\/boochlin.com\/?p=649"},"modified":"2026-09-20T10:57:00","modified_gmt":"2026-09-20T10:57:00","slug":"kotlin-%e5%a6%82%e4%bd%95%e9%a0%90%e9%98%b2-launch-%e9%80%a3%e7%99%bc%ef%bc%8c%e6%90%9c%e5%b0%8b%e4%bb%bb%e5%8b%99","status":"publish","type":"post","link":"https:\/\/boochlin.com\/?p=649","title":{"rendered":"Kotlin \u5982\u4f55\u9810\u9632 Launch \u9023\u767c\uff0c\u641c\u5c0b\u4efb\u52d9"},"content":{"rendered":"<p>\u57fa\u65bc blog \u7684\u4e3b\u65e8\u300cSomething Record\u300d\uff0c\u9019\u6b21\u4f86\u8a18\u9304\u4e00\u4e0b\u975e\u540c\u6b65\u4e26\u884c\u6642\u5929\u5929\u9047\u5230\u7684\u9748\u9b42\u62f7\u554f\u3002<\/p>\n<p>\u525b\u5f9e Java \u5207\u63db\u5230 Kotlin \u7684\u90a3\u9663\u5b50\uff0c\u6211\u770b\u8457\u5354\u7a0b\u7684\u8a9e\u6cd5\u7cd6\u723d\u611f\u5341\u8db3\uff0c\u96a8\u624b\u5c31\u5728 ViewModel \u88e1\u5230\u8655\u5beb <code>viewModelScope.launch<\/code>\u3002\u56e0\u70ba\u5354\u7a0b <code>launch<\/code> \u5929\u751f\u5c31\u662f**\u300c\u5c04\u5f8c\u4e0d\u7406 (fire-and-forget)\u300d**\uff0c\u65e2\u4e0d\u963b\u585e\u547c\u53eb\u7aef\uff0c\u8a9e\u6cd5\u53c8\u6bd4\u624b\u5beb\u57f7\u884c\u7dd2\u4e7e\u6de8\u5341\u500d\uff0c\u5beb\u8d77\u4f86\u884c\u96f2\u6d41\u6c34\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/boochlin.com\/wp-content\/uploads\/2026\/09\/post_649_featured_opt-300x300.webp\" alt=\"\"><\/p>\n<p>\u76f4\u5230\u7dda\u4e0a\u7522\u54c1\u958b\u8dd1\uff0c\u624b\u901f\u6975\u5feb\u7684\u4f7f\u7528\u8005\u5728 1 \u79d2\u5167\u9023\u6309\u4e86 10 \u6b21\u4ed8\u6b3e\u6309\u9215\uff0c\u6216\u8005\u5728\u641c\u5c0b\u6846\u7121\u60c5\u9b3c\u755c\u6253\u5b57\uff0cApp \u5fe0\u5be6\u5730\u5e73\u884c\u555f\u52d5 10 \u500b\u7368\u7acb\u5354\u7a0b\uff0c\u9023\u7e8c\u5411\u5f8c\u7aef\u8f5f\u70b8 10 \u6b21\u7db2\u8def\u8acb\u6c42\u3002<\/p>\n<p>\u7b97\u4e00\u7b46\u6700\u6b98\u9177\u7684\u73fe\u5834\u8cc7\u6e90\u8d64\u5b57\uff1a<\/p>\n<ul>\n<li><strong>OkHttp \u9023\u7dda\u6c60\u585e\u8eca<\/strong>\uff1aOkHttp \u9810\u8a2d <code>maxRequestsPerHost = 5<\/code>\u300210 \u6b21\u9023\u767c\u77ac\u9593\u628a\u9023\u7dda\u6c60\u704c\u7206\uff0c\u5f8c\u7e8c\u8acb\u6c42\u88ab\u8feb\u5728\u9023\u7dda\u4f47\u5217\u6392\u968a\u4e7e\u7b49\u3002<\/li>\n<li><strong>\u4f3a\u670d\u5668\u7aef QPS \u7ffb\u500d<\/strong>\uff1a\u53ea\u8981\u5e7e\u5341\u500b\u4f7f\u7528\u8005\u540c\u6642\u9023\u9ede\uff0c\u77ac\u9593\u5c31\u662f\u6578\u767e\u6b21\u7a81\u767c\u4f75\u767c\uff0c\u76f4\u63a5\u628a\u5f8c\u53f0\u4f3a\u670d\u5668\u6253\u51fa 502 Bad Gateway\u3002<\/li>\n<li><strong>\u8a18\u61b6\u9ad4\u8207 GC \u6296\u52d5<\/strong>\uff1a1 \u79d2\u5167\u5efa\u7acb 10 \u5957 Request\u3001Response\u3001Okio Buffer \u7269\u4ef6\uff0c\u5728 ART \u865b\u64ec\u6a5f\u5668\u88e1\u5674\u51fa\u5927\u91cf\u81e8\u6642\u8a18\u61b6\u9ad4\u5783\u573e\uff0c\u983b\u7e41\u89f8\u767c GC \u5c0e\u81f4 UI \u5e40\u7387\u66b4\u8dcc\u3002<\/li>\n<\/ul>\n<p>\u4f46\u5728\u52d5\u624b\u5beb\u9632\u79a6\u524d\uff0c\u5fc5\u9808\u5148\u770b\u6e05\u696d\u52d9\u73fe\u5834\u7684\u5169\u7a2e\u6975\u7aef\u60c5\u5883\u2014\u2014\u56e0\u70ba\u7528\u932f\u9632\u79a6\u624b\u6bb5\uff0c\u6bd4\u9023\u767c\u66f4\u81f4\u547d\u3002<\/p>\n<hr>\n<h2>\u696d\u52d9\u73fe\u5834\u7684\u5169\u5927\u6975\u7aef\u60c5\u5883\uff1a\u65b0\u4f86\u820a\u4ea1 vs. \u95dc\u9375\u6392\u4ed6<\/h2>\n<p>\u4e26\u884c\u554f\u984c\u4e4b\u6240\u4ee5\u9ebb\u7169\uff0c\u662f\u56e0\u70ba\u4e0d\u540c\u696d\u52d9\u5c0d\u300c\u9023\u767c\u300d\u7684\u671f\u671b\u5b8c\u5168\u76f8\u53cd\uff1a<\/p>\n<h3>\u60c5\u5883 1\uff1a\u641c\u5c0b\u8f38\u5165\u6846 \u2014\u2014 \u524d\u9762\u7684\u8acb\u6c42\u5168\u662f\u5ee2\u8a71\uff0c\u6211\u53ea\u95dc\u5fc3\u6700\u65b0\u7d50\u679c<\/h3>\n<p>\u4f7f\u7528\u8005\u5728\u77ed\u6642\u9593\u5167\u5feb\u901f\u8f38\u5165\u300cA\u300d\u3001\u300cAP\u300d\u3001\u300cAPP\u300d\u3001\u300cAPPLE\u300d\uff0c\u6211\u5011\u5176\u5be6\u53ea\u95dc\u5fc3\u6700\u5f8c\u300cAPPLE\u300d\u7684\u641c\u5c0b\u7d50\u679c\u3002<br \/>\n\u524d\u9762\u5e7e\u6b21\u7684\u8acb\u6c42\u4e0d\u50c5\u6d6a\u8cbb\u983b\u5bec\u548c\u4f3a\u670d\u5668\u7b97\u529b\uff0c\u66f4\u81f4\u547d\u7684\u662f<strong>\u6642\u5e8f\u5012\u639b\uff08Race Condition \/ Stale Overwrite\uff09<\/strong>\uff1a\u5982\u679c\u820a\u7684\u300cAPP\u300d\u8acb\u6c42\u56e0\u70ba\u7db2\u8def\u6ce2\u52d5\uff0c\u6bd4\u65b0\u7684\u300cAPPLE\u300d\u66f4\u665a\u56de\u50b3\uff0c\u5f8c\u56de\u4f86\u7684\u820a\u8cc7\u6599\u5c31\u6703\u628a\u6b63\u78ba\u7684\u6700\u65b0\u7d50\u679c\u786c\u751f\u751f\u84cb\u6389\uff01<br \/><strong>\u6838\u5fc3\u7b56\u7565<\/strong>\uff1a\u65b0\u4f86\u820a\u4ea1\u3002\u53ea\u8981\u65b0\u8f38\u5165\u4e00\u9032\u4f86\uff0c\u820a\u4efb\u52d9\u9084\u5728\u8dd1\u5c31\u7acb\u523b\u5f37\u5236\u53d6\u6d88\u3002<\/p>\n<h3>\u60c5\u5883 2\uff1a\u78ba\u8a8d\u4ed8\u6b3e \/ \u9001\u51fa\u8a02\u55ae \u2014\u2014 \u95dc\u9375\u4e8b\u52d9\u7d55\u4e0d\u5bb9\u6253\u65b7\uff0c\u4efb\u52d9\u5728\u8dd1\u5c31\u5225\u7406\u6211<\/h3>\n<p>\u50cf\u300c\u78ba\u8a8d\u4ed8\u6b3e\u300d\u3001\u300c\u9001\u51fa\u8a02\u55ae\u300d\u3001\u300c\u9580\u7981\u958b\u9580\u300d\u9019\u7a2e\u64cd\u4f5c\uff0c\u6211\u5011\u7d55\u4e0d\u5e0c\u671b\u5b83\u88ab\u4e2d\u9014\u53d6\u6d88\uff0c\u66f4\u4e0d\u5141\u8a31\u91cd\u8907\u57f7\u884c\u3002\u5728\u7b2c\u4e00\u6b21\u9ede\u64ca\u7684\u4efb\u52d9\u9084\u6c92\u5b8c\u6210\u524d\uff08\u9084\u5728\u8ddf\u9280\u884c\u4f3a\u670d\u5668\u901a\u8a0a\uff09\uff0c\u6240\u6709\u5f8c\u7e8c\u7684\u9ede\u64ca\u901a\u901a\u90fd\u8a72\u88ab\u76f4\u63a5\u5ffd\u7565\uff0c\u907f\u514d\u91cd\u8907\u4e0b\u55ae\u3002<br \/><strong>\u6838\u5fc3\u7b56\u7565<\/strong>\uff1a\u6392\u4ed6\u963b\u65b7\u3002\u5982\u679c\u524d\u4e00\u500b\u4efb\u52d9\u6b63\u5728\u8dd1\uff0c\u5ffd\u7565\u5f8c\u9762\u6240\u6709\u7684\u9ede\u64ca\u3002<\/p>\n<hr>\n<h2>\u9632\u79a6\u65b9\u6848\u4e00\uff1aUI \u7269\u7406\u9632\u79a6\uff08\u6309\u4e0b\u53bb\u76f4\u63a5\u9396\u6b7b\u6309\u9215\uff09<\/h2>\n<p>\u6700\u76f4\u89c0\u7684\u505a\u6cd5\u662f\u5728 launch \u958b\u59cb\u524d\u7acb\u523b\u628a\u6309\u9215\u7981\u7528\uff0c\u8dd1\u5b8c\u518d\u89e3\u9396\u3002<\/p>\n<p>\u5f88\u591a\u5de5\u7a0b\u5e2b\u5beb\u51fa\u9019\u6a23\u7684\u7a0b\u5f0f\u78bc\uff0c\u81ea\u4ee5\u70ba\u5f88\u5b89\u5168\uff1a<\/p>\n<pre><code class=\"hljs language-kotlin\"><span class=\"hljs-comment\">\/\/ \u5178\u578b\u932f\u8aa4\u7bc4\u4f8b\uff1a\u5b58\u5728 TOCTOU \u4f75\u767c\u7a7f\u900f\u6f0f\u6d1e<\/span>\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">submitOrder<\/span><span class=\"hljs-params\">()<\/span><\/span> {\n    <span class=\"hljs-keyword\">if<\/span> (_isSubmitting.value) <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-comment\">\/\/ 1. \u4e3b\u57f7\u884c\u7dd2\u8b80\u53d6<\/span>\n    viewModelScope.launch {\n        _isSubmitting.value = <span class=\"hljs-literal\">true<\/span>  <span class=\"hljs-comment\">\/\/ 2. \u5354\u7a0b\u88ab\u6392\u7a0b\u5668\u6d3e\u767c\u524d\uff0c\u7a7a\u7a97\u671f\u4f9d\u7136\u70ba false\uff01<\/span>\n        <span class=\"hljs-keyword\">try<\/span> {\n            orderRepository.checkout()\n        } <span class=\"hljs-keyword\">finally<\/span> {\n            _isSubmitting.value = <span class=\"hljs-literal\">false<\/span>\n        }\n    }\n}<\/code><\/pre>\n<p>\u9019\u6bb5\u7a0b\u5f0f\u78bc\u6709\u6559\u79d1\u66f8\u7d1a\u5225\u7684 <strong>Time-of-Check to Time-of-Use (TOCTOU)<\/strong> \u7af6\u722d\u6f0f\u6d1e\uff01<br \/>\n<code>launch<\/code> \u9810\u8a2d\u6d3e\u767c\u7d66\u5354\u7a0b\u6392\u7a0b\u5668\uff0c\u5728\u5354\u7a0b\u771f\u6b63\u57f7\u884c\u7b2c\u4e00\u884c\u524d\u5b58\u5728\u6392\u7a0b\u7a7a\u7a97\u671f\u3002\u82e5\u624b\u901f\u6975\u5feb\u7684\u4f7f\u7528\u8005\u9023\u9ede\uff0c\u7b2c\u4e8c\u500b\u9ede\u64ca\u6703\u5728\u5354\u7a0b\u555f\u52d5\u524d\u518d\u6b21\u901a\u904e <code>if<\/code> \u6aa2\u67e5\uff0c\u5c0e\u81f4\u767c\u8d77\u591a\u500b\u4ed8\u6b3e\u5354\u7a0b\uff01<\/p>\n<h3>\u6b63\u78ba\u505a\u6cd5\uff1aCAS \u539f\u5b50\u6436\u4f54\u9396 + <code>enabled<\/code> \u7d81\u5b9a<\/h3>\n<p>\u5fc5\u9808\u5728\u547c\u53eb <code>launch<\/code> \u524d<strong>\u540c\u6b65\u6436\u4f54\u65d7\u6a19<\/strong>\uff0c\u6d88\u6ec5\u6392\u7a0b\u7a7a\u7a97\u671f\uff1a<\/p>\n<pre><code class=\"hljs language-kotlin\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">PaymentViewModel<\/span> : <span class=\"hljs-type\">ViewModel<\/span>() {\n    <span class=\"hljs-comment\">\/\/ \u521d\u59cb\u72c0\u614b\u70ba false (\u672a\u9001\u51fa)<\/span>\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">val<\/span> _isSubmitting = MutableStateFlow(<span class=\"hljs-literal\">false<\/span>)\n    <span class=\"hljs-keyword\">val<\/span> isSubmitting: StateFlow&lt;<span class=\"hljs-built_in\">Boolean<\/span>&gt; = _isSubmitting.asStateFlow()\n\n    <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">submitOrder<\/span><span class=\"hljs-params\">()<\/span><\/span> {\n        <span class=\"hljs-comment\">\/\/ \u7b2c\u4e00\u9053\u9632\u7dda\uff1a\u900f\u904e CAS (Compare-And-Set) \u539f\u5b50\u64cd\u4f5c\u7acb\u5373\u6436\u4f54\u65d7\u6a19<\/span>\n        <span class=\"hljs-comment\">\/\/ \u5982\u679c\u76ee\u524d\u4e0d\u662f false\uff0c\u4ee3\u8868\u5df2\u6709\u4efb\u52d9\u6b63\u5728\u9032\u884c\uff0c\u76f4\u63a5\u8fd4\u56de<\/span>\n        <span class=\"hljs-keyword\">if<\/span> (!_isSubmitting.compareAndSet(<span class=\"hljs-keyword\">expect<\/span> = <span class=\"hljs-literal\">false<\/span>, update = <span class=\"hljs-literal\">true<\/span>)) <span class=\"hljs-keyword\">return<\/span>\n\n        viewModelScope.launch {\n            <span class=\"hljs-keyword\">try<\/span> {\n                <span class=\"hljs-comment\">\/\/ \u57f7\u884c\u95dc\u9375\u4ed8\u6b3e<\/span>\n                orderRepository.checkout()\n            } <span class=\"hljs-keyword\">catch<\/span> (e: Exception) {\n                <span class=\"hljs-comment\">\/\/ \u932f\u8aa4\u8655\u7406<\/span>\n            } <span class=\"hljs-keyword\">finally<\/span> {\n                <span class=\"hljs-comment\">\/\/ \u4e0d\u7ba1\u6210\u529f\u3001\u5931\u6557\u9084\u662f\u88ab\u53d6\u6d88\uff0c\u6700\u5f8c\u4e00\u5b9a\u8981\u5b89\u5168\u91cb\u653e\u65d7\u6a19\uff01<\/span>\n                _isSubmitting.value = <span class=\"hljs-literal\">false<\/span>\n            }\n        }\n    }\n}<\/code><\/pre>\n<pre><code class=\"hljs language-kotlin\"><span class=\"hljs-comment\">\/\/ Compose \u7aef\u7684\u5ba3\u544a\u5f0f\u7d81\u5b9a<\/span>\n<span class=\"hljs-meta\">@Composable<\/span>\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">SubmitButton<\/span><span class=\"hljs-params\">(viewModel: <span class=\"hljs-type\">PaymentViewModel<\/span>)<\/span><\/span> {\n    <span class=\"hljs-keyword\">val<\/span> isSubmitting <span class=\"hljs-keyword\">by<\/span> viewModel.isSubmitting.collectAsState()\n\n    Button(\n        onClick = { viewModel.submitOrder() },\n        enabled = !isSubmitting <span class=\"hljs-comment\">\/\/ \u7269\u7406\u505c\u7528\u9ede\u64ca<\/span>\n    ) {\n        <span class=\"hljs-keyword\">if<\/span> (isSubmitting) {\n            CircularProgressIndicator(modifier = Modifier.size(<span class=\"hljs-number\">16.<\/span>dp))\n        } <span class=\"hljs-keyword\">else<\/span> {\n            Text(<span class=\"hljs-string\">&quot;\u78ba\u8a8d\u4ed8\u6b3e&quot;<\/span>)\n        }\n    }\n}<\/code><\/pre>\n<ul>\n<li><strong>\u512a\u9ede<\/strong>\uff1a\u76f4\u89c0\uff0c\u4f7f\u7528\u8005\u4ecb\u9762\u770b\u5f97\u898b\u6309\u9215\u8b8a\u7070\u6216\u8f49\u5708\u5708\u3002<\/li>\n<li><strong>\u7f3a\u9ede<\/strong>\uff1a\u53ea\u80fd\u9632\u6309\u9215\u9ede\u64ca\u3002\u5728\u641c\u5c0b\u6846\u5feb\u901f\u6253\u5b57\u6642\uff0c\u4f60\u4e0d\u53ef\u80fd\u6bcf\u6572\u4e00\u500b\u5b57\u5c31\u628a\u8f38\u5165\u6846\u9396\u6b7b 300 \u6beb\u79d2\uff08\u4f7f\u7528\u8005\u6703\u4ee5\u70ba\u624b\u6a5f\u89f8\u63a7\u7576\u6a5f\uff09\uff0c\u56e0\u6b64\u641c\u5c0b\u60c5\u5883\u4e0d\u9069\u7528\u3002<\/li>\n<\/ul>\n<hr>\n<h2>\u9632\u79a6\u65b9\u6848\u4e8c\uff1aJob \u9059\u63a7\u5668\uff08\u624b\u52d5\u63a7\u5236\u5354\u7a0b\u751f\u547d\u9031\u671f\uff09<\/h2>\n<p>\u547c\u53eb <code>launch<\/code> \u6703\u56de\u50b3\u4e00\u500b <code>Job<\/code> \u7269\u4ef6\u3002\u53ef\u4ee5\u628a\u9019\u500b <code>Job<\/code> \u7576\u6210\u4efb\u52d9\u7684\u300c\u9059\u63a7\u5668\u300d\uff0c\u7528\u4f86\u4e3b\u52d5 cancel \u6216\u6aa2\u67e5\u6d3b\u8e8d\u72c0\u614b\u3002<\/p>\n<h3>\u641c\u5c0b\u60c5\u5883\uff1a\u65b0\u4f86\u820a\u4ea1\uff0c\u7acb\u523b\u53d6\u6d88\u524d\u4e00\u500b\u4efb\u52d9<\/h3>\n<pre><code class=\"hljs language-kotlin\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">SearchViewModel<\/span>(\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">val<\/span> searchApi: SearchApi\n) : ViewModel() {\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">var<\/span> searchJob: Job? = <span class=\"hljs-literal\">null<\/span>\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">val<\/span> _searchResult = MutableStateFlow&lt;List&lt;String&gt;&gt;(emptyList())\n    <span class=\"hljs-keyword\">val<\/span> searchResult: StateFlow&lt;List&lt;String&gt;&gt; = _searchResult.asStateFlow()\n\n    <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">onQueryChanged<\/span><span class=\"hljs-params\">(query: <span class=\"hljs-type\">String<\/span>)<\/span><\/span> {\n        <span class=\"hljs-comment\">\/\/ 1. \u5982\u679c\u4e0a\u4e00\u500b\u641c\u5c0b\u4efb\u52d9\u9084\u5728\u8dd1\uff0c\u7acb\u523b\u6309\u53d6\u6d88\u9375\uff01<\/span>\n        searchJob?.cancel()\n\n        <span class=\"hljs-keyword\">if<\/span> (query.isBlank()) {\n            _searchResult.value = emptyList()\n            <span class=\"hljs-keyword\">return<\/span>\n        }\n\n        <span class=\"hljs-comment\">\/\/ 2. \u958b\u4e00\u500b\u65b0\u7684\u5354\u7a0b\uff0c\u4e26\u628a\u9059\u63a7\u5668\u5b58\u4e0b\u4f86<\/span>\n        searchJob = viewModelScope.launch {\n            <span class=\"hljs-keyword\">try<\/span> {\n                <span class=\"hljs-comment\">\/\/ \u7b49 300ms\uff0c\u5982\u679c\u4f7f\u7528\u8005\u7e7c\u7e8c\u6253\u5b57\uff0c\u4e0a\u9762\u5c31\u6703\u89f8\u767c cancel() \u4e2d\u65b7\u9019\u88e1<\/span>\n                delay(<span class=\"hljs-number\">300L<\/span>)\n                \n                <span class=\"hljs-keyword\">val<\/span> results = searchApi.search(query)\n                _searchResult.value = results\n            } <span class=\"hljs-keyword\">catch<\/span> (e: CancellationException) {\n                <span class=\"hljs-comment\">\/\/ \u5354\u7a0b\u88ab\u53d6\u6d88\u6703\u62cb\u51fa\u6b64\u53d6\u6d88\u4f8b\u5916 (CancellationException)\uff0c\u5c6c\u6b63\u5e38\u6d41\u7a0b<\/span>\n            } <span class=\"hljs-keyword\">catch<\/span> (e: Exception) {\n                <span class=\"hljs-comment\">\/\/ \u8655\u7406\u771f\u5be6\u696d\u52d9\u932f\u8aa4<\/span>\n            }\n        }\n    }\n}<\/code><\/pre>\n<blockquote>\n<p><strong>\u5fae\u67b6\u69cb\u7d30\u7bc0\uff1a\u5354\u7a0b\u53d6\u6d88\u662f\u300c\u5354\u540c\u5f0f\uff08Cooperative\uff09\u300d\u7684\uff01<\/strong><\/p>\n<p>\u5f88\u591a\u4eba\u4ee5\u70ba <code>job.cancel()<\/code> \u4e00\u6309\u4e0b\u53bb\uff0c\u7a0b\u5f0f\u78bc\u5c31\u6703\u50cf\u88ab\u62d4\u6389\u63d2\u982d\u4e00\u6a23\u77ac\u9593\u505c\u4f4f\u3002\u6839\u672c\u4e0d\u662f\u9019\u56de\u4e8b\uff01<br \/><code>cancel()<\/code> \u53ea\u662f\u628a Job \u72c0\u614b\u8a2d\u70ba <code>Cancelling<\/code>\u3002\u5982\u679c\u5354\u7a0b\u6b63\u5728\u8dd1\u4e00\u6bb5<strong>\u7d14 CPU \u5bc6\u96c6\u904b\u7b97\u7684\u8ff4\u5708<\/strong>\uff08\u4f8b\u5982\u5728\u7b97\u77e9\u9663\u3001\u5f71\u50cf\u89e3\u78bc\u6216\u7279\u5fb5\u9ede\u6bd4\u5c0d\uff09\uff0c\u5b83\u5b8c\u5168\u611f\u77e5\u4e0d\u5230\u53d6\u6d88\uff01<br \/>\u5fc5\u9808\u8981\u6709\u639b\u8d77\u9ede\uff08\u5982 <code>delay()<\/code>\u3001\u7db2\u8def I\/O\uff09\uff0c\u6216\u8005\u5728\u8ff4\u5708\u4e2d\u4e3b\u52d5\u52a0\u4e0a <code>ensureActive()<\/code> \u6216 <code>yield()<\/code>\uff0c\u5354\u7a0b\u624d\u80fd\u5728\u88ab cancel \u6642\u53ca\u6642\u62cb\u51fa <code>CancellationException<\/code> \u9000\u5834\u3002<\/p>\n<\/blockquote>\n<hr>\n<h3>\u4ed8\u6b3e\u60c5\u5883\uff1a\u4efb\u52d9\u5728\u8dd1\uff0c\u5f8c\u7e8c\u9ede\u64ca\u901a\u901a\u5ffd\u7565<\/h3>\n<pre><code class=\"hljs language-kotlin\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">CheckoutViewModel<\/span> : <span class=\"hljs-type\">ViewModel<\/span>() {\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">var<\/span> checkoutJob: Job? = <span class=\"hljs-literal\">null<\/span>\n\n    <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">onPayClicked<\/span><span class=\"hljs-params\">(idempotencyKey: <span class=\"hljs-type\">String<\/span>)<\/span><\/span> {\n        <span class=\"hljs-comment\">\/\/ \u6aa2\u67e5\u524d\u4e00\u500b\u4efb\u52d9\u662f\u5426\u9084\u5728\u6d3b\u8e8d\u72c0\u614b (isActive)<\/span>\n        <span class=\"hljs-keyword\">if<\/span> (checkoutJob?.isActive == <span class=\"hljs-literal\">true<\/span>) {\n            <span class=\"hljs-comment\">\/\/ \u4e0a\u4e00\u6b21\u4ed8\u6b3e\u9084\u6c92\u8dd1\u5b8c\uff0c\u76f4\u63a5 return\uff0c\u5ffd\u8996\u9019\u6b21\u9ede\u64ca<\/span>\n            <span class=\"hljs-keyword\">return<\/span>\n        }\n\n        checkoutJob = viewModelScope.launch {\n            <span class=\"hljs-keyword\">try<\/span> {\n                <span class=\"hljs-comment\">\/\/ 1. \u7db2\u8def\u8acb\u6c42\u4fdd\u6301\u6b63\u5e38\u53ef\u53d6\u6d88\uff0c\u7531\u5f8c\u7aef idempotency key \u4fdd\u8b49\u4e0d\u91cd\u8907\u6263\u6b3e<\/span>\n                <span class=\"hljs-keyword\">val<\/span> response = paymentGateway.processTransaction(idempotencyKey)\n\n                <span class=\"hljs-comment\">\/\/ 2. \u53ea\u6709\u672c\u5730\u4e0d\u53ef\u9006\u7684\u8a02\u55ae\u72c0\u614b\u5beb\u5165\uff0c\u624d\u7528 NonCancellable \u907f\u514d\u72c0\u614b\u6495\u88c2<\/span>\n                withContext(NonCancellable) {\n                    orderRepository.markOrderAsPaid(response.transactionId)\n                }\n            } <span class=\"hljs-keyword\">catch<\/span> (e: CancellationException) {\n                <span class=\"hljs-comment\">\/\/ \u5354\u7a0b\u88ab\u6b63\u5e38\u53d6\u6d88\uff0c\u4f9d\u8cf4\u4e0b\u6b21\u9032\u5165\u756b\u9762\u6216\u80cc\u666f\u8f2a\u8a62\u5c0d\u5e33<\/span>\n                <span class=\"hljs-keyword\">throw<\/span> e\n            } <span class=\"hljs-keyword\">finally<\/span> {\n                <span class=\"hljs-comment\">\/\/ \u4efb\u52d9\u7d50\u675f\uff0cJob \u81ea\u7136\u8b8a\u6210\u975e\u6d3b\u8e8d\u72c0\u614b\uff0c\u4e0b\u6b21\u9ede\u64ca\u5c31\u80fd\u518d\u9032\u4f86<\/span>\n            }\n        }\n    }\n}<\/code><\/pre>\n<blockquote>\n<p><strong>\u5fae\u67b6\u69cb\u9677\u9631\uff1a<code>NonCancellable<\/code> \u662f\u96d9\u5203\u528d<\/strong><\/p>\n<p>\u5343\u842c\u4e0d\u8981\u76f2\u76ee\u628a\u6574\u6bb5\u9577\u9054 30 \u79d2\u7684\u7db2\u8def\u8acb\u6c42\u5168\u585e\u9032 <code>withContext(NonCancellable)<\/code> \u88e1\uff01<br \/>\u5982\u679c\u4f7f\u7528\u8005\u6309\u4e86\u4e0a\u4e00\u9801\u9000\u51fa\u756b\u9762\uff0c\u9019\u500b\u9023\u7dda\u6703\u6b7b\u6b7b\u54ac\u4f4f\u7db2\u8def\u5361\u76f4\u5230\u903e\u6642\uff0c\u9020\u6210\u8a18\u61b6\u9ad4\u6d29\u6f0f\u8207\u983b\u5bec\u6d6a\u8cbb\u3002<br \/><strong>\u771f\u6b63\u6a19\u6e96\u7684\u5de5\u696d\u7d1a\u505a\u6cd5<\/strong>\uff1a\u7db2\u8def\u8acb\u6c42\u4fdd\u6301\u6b63\u5e38\u53ef\u53d6\u6d88\uff0c\u4f46\u642d\u914d\u5f8c\u7aef\u51aa\u7b49\u6027 Token\uff08Idempotency Key\uff09\uff1b\u53ea\u6709\u5728\u300c\u672c\u5730\u8cc7\u6599\u5eab\u6263\u6b3e\u72c0\u614b\u66f4\u65b0 \/ \u4ea4\u6613\u5beb\u5165\u300d\u7684\u6700\u95dc\u9375\u5e7e\u884c\uff0c\u624d\u9700\u8981\u7528 <code>NonCancellable<\/code> \u4fdd\u8b77\u539f\u5b50\u6027\u3002<\/p>\n<\/blockquote>\n<hr>\n<h2>\u9632\u79a6\u65b9\u6848\u4e09\uff1aFlow \u7ba1\u9053\uff08\u73fe\u4ee3\u97ff\u61c9\u5f0f\u67b6\u69cb\uff09<\/h2>\n<p>\u5728\u73fe\u4ee3 Android \u958b\u767c\u4e2d\uff0c\u6700\u512a\u96c5\u7684\u505a\u6cd5\u662f<strong>\u628a\u4e8b\u4ef6\u7576\u6210\u6c34\u6d41\uff08Flow\uff09<\/strong>\uff0c\u76f4\u63a5\u7528\u5167\u5efa\u64cd\u4f5c\u7b26\u505a\u5ba3\u544a\u5f0f\u63a7\u5236\u3002<\/p>\n<h3>\u7d42\u6975\u641c\u5c0b\u9632\u6296\u7ba1\u9053\uff1a<code>debounce<\/code> + <code>distinctUntilChanged<\/code> + <code>flatMapLatest<\/code><\/h3>\n<pre><code class=\"hljs language-kotlin\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">ModernSearchViewModel<\/span>(\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">val<\/span> searchApi: SearchApi\n) : ViewModel() {\n\n    <span class=\"hljs-comment\">\/\/ 1. \u4e8b\u4ef6\u5165\u53e3\u6c34\u7ba1<\/span>\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">val<\/span> queryChannel = MutableSharedFlow&lt;String&gt;(\n        replay = <span class=\"hljs-number\">0<\/span>,\n        extraBufferCapacity = <span class=\"hljs-number\">1<\/span>,\n        onBufferOverflow = BufferOverflow.DROP_OLDEST\n    )\n\n    <span class=\"hljs-comment\">\/\/ 2. \u5ba3\u544a\u97ff\u61c9\u5f0f\u8655\u7406\u7ba1\u7dda<\/span>\n    <span class=\"hljs-keyword\">val<\/span> searchUiState: StateFlow&lt;SearchUiState&gt; = queryChannel\n        <span class=\"hljs-comment\">\/\/ \u6838\u5fc3\u9632\u6296\uff1a\u53ea\u6709\u7576 300 \u6beb\u79d2\u5167\u6c92\u6709\u65b0\u4e8b\u4ef6\u6d41\u9032\u4f86\uff0c\u624d\u653e\u884c\u6700\u65b0\u5b57\u4e32<\/span>\n        .debounce(<span class=\"hljs-number\">300L<\/span>)\n        <span class=\"hljs-comment\">\/\/ \u6838\u5fc3\u904e\u6ffe\uff1a\u6253\u4e86 &quot;A&quot; \u53c8\u522a\u9664\u6539\u56de &quot;A&quot;\uff0c\u5167\u5bb9\u6c92\u8b8a\u5c31\u4e0d\u91cd\u65b0\u767c\u8acb\u6c42<\/span>\n        .distinctUntilChanged()\n        <span class=\"hljs-comment\">\/\/ \u6838\u5fc3\u4f75\u767c\u63a7\u5236\uff1a\u65b0 query \u9032\u4f86\u6642\uff0c\u81ea\u52d5\u628a\u4e0a\u4e00\u500b\u5c1a\u672a\u5b8c\u6210\u7684\u641c\u5c0b\u8acb\u6c42\u53d6\u6d88<\/span>\n        .flatMapLatest { query -&gt;\n            flow {\n                <span class=\"hljs-keyword\">if<\/span> (query.isBlank()) {\n                    emit(SearchUiState.Idle)\n                } <span class=\"hljs-keyword\">else<\/span> {\n                    emit(SearchUiState.Loading)\n                    <span class=\"hljs-keyword\">val<\/span> result = searchApi.search(query)\n                    emit(SearchUiState.Success(result))\n                }\n            }.<span class=\"hljs-keyword\">catch<\/span> { e -&gt;\n                emit(SearchUiState.Error(e.message ?: <span class=\"hljs-string\">&quot;Unknown Error&quot;<\/span>))\n            }\n        }\n        <span class=\"hljs-comment\">\/\/ \u8f49\u70ba\u751f\u547d\u9031\u671f\u611f\u77e5\u7684 StateFlow<\/span>\n        .stateIn(\n            scope = viewModelScope,\n            started = SharingStarted.WhileSubscribed(<span class=\"hljs-number\">5000L<\/span>),\n            initialValue = SearchUiState.Idle\n        )\n\n    <span class=\"hljs-comment\">\/\/ 3. UI \u53ea\u9700\u8981\u7121\u8166\u547c\u53eb\u9019\u500b\u51fd\u5f0f\u4e1f\u4e8b\u4ef6<\/span>\n    <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">onQueryInput<\/span><span class=\"hljs-params\">(query: <span class=\"hljs-type\">String<\/span>)<\/span><\/span> {\n        queryChannel.tryEmit(query)\n    }\n}<\/code><\/pre>\n<h3>\u64cd\u4f5c\u7b26\u7684\u5fae\u67b6\u69cb\u5206\u5de5\uff1a<\/h3>\n<ol>\n<li><strong><code>debounce(300L)<\/code><\/strong>\uff1a\u9632\u6296\u9748\u9b42\u3002\u6bcf\u6b21\u6536\u5230\u65b0\u5b57\u4e32\u5c31\u91cd\u7f6e\u8a08\u6642\u5668\uff0c\u53ea\u6709\u4f7f\u7528\u8005\u505c\u624b 300ms \u5f8c\u624d\u653e\u884c\uff0c\u5fb9\u5e95\u675c\u7d55\u5feb\u901f\u6253\u5b57\u6642\u7684\u8acb\u6c42\u8f5f\u70b8\u3002<\/li>\n<li><strong><code>distinctUntilChanged()<\/code><\/strong>\uff1a\u7528 <code>equals()<\/code> \u6bd4\u5c0d\u524d\u5f8c\u503c\uff0c\u5b57\u4e32\u5b8c\u5168\u76f8\u540c\u5c31\u4e0d\u5f80\u4e0b\u9001\u3002<\/li>\n<li><strong><code>flatMapLatest<\/code><\/strong>\uff1a\u5e95\u5c64\u5305\u88dd\u4e86\u81ea\u52d5\u53d6\u6d88\u6a5f\u5236\u3002\u53ea\u8981\u4e0a\u6e38\u653e\u884c\u4e86\u65b0\u503c\uff0c\u5b83\u6703<strong>\u7acb\u523b cancel \u6389\u4e0a\u4e00\u500b\u9084\u5728\u8dd1\u7684\u641c\u5c0b\u5b50\u5354\u7a0b<\/strong>\uff0c\u5b8c\u7f8e\u89e3\u6c7a\u6642\u5e8f\u5012\u639b\u554f\u984c\uff01<\/li>\n<\/ol>\n<hr>\n<h2>\u8e29\u5751\u8b66\u793a\uff1a\u5225\u62ff <code>collectLatest<\/code> \u53bb\u505a\u6263\u6b3e\u6216\u5beb\u8cc7\u6599\u5eab\uff01<\/h2>\n<p>\u5f88\u591a\u4eba\u5b78\u6703\u4e86 Flow \u7684\u64cd\u4f5c\u7b26\u4e4b\u5f8c\uff0c\u89ba\u5f97 <code>collectLatest<\/code> \u592a\u795e\u4e86\uff0c\u5c31\u5beb\u51fa\u9019\u7a2e\u5371\u96aa\u7a0b\u5f0f\u78bc\uff1a<\/p>\n<pre><code class=\"hljs language-kotlin\"><span class=\"hljs-comment\">\/\/ \u81f4\u547d\u5927\u5751\uff1a\u7d55\u5c0d\u4e0d\u8981\u5728 collectLatest \u88e1\u9762\u505a\u95dc\u9375\u8cc7\u6599\u5beb\u5165\u6216\u6263\u6b3e\uff01<\/span>\npaymentClickFlow.collectLatest {\n    <span class=\"hljs-comment\">\/\/ \u7576\u4f7f\u7528\u8005\u5728 500ms \u5167\u9023\u9ede\u5169\u6b21\uff1a<\/span>\n    <span class=\"hljs-comment\">\/\/ \u7b2c\u4e00\u6b21\u9ede\u64ca\u767c\u8d77\u7684\u7db2\u8def\u8acb\u6c42\uff0c\u5728\u5373\u5c07\u56de\u50b3\u7684\u524d\u4e00\u523b\u88ab CANCEL \u6389\u4e86\uff01<\/span>\n    <span class=\"hljs-comment\">\/\/ \u7d50\u679c\uff1a\u4f3a\u670d\u5668\u7aef\u5df2\u7d93\u6263\u6b3e\u6210\u529f\uff0c\u4f46 Client \u7aef\u56e0\u70ba\u5354\u7a0b\u88ab\u53d6\u6d88\u800c\u4e1f\u5931\u56de\u61c9\uff0c\u76f4\u63a5\u5f15\u7206\u5e33\u52d9\u73fe\u5834\u4e8b\u6545\uff01<\/span>\n    paymentApi.charge()\n}<\/code><\/pre>\n<blockquote>\n<p>[!CAUTION]<br \/>\n<strong>\u9435\u5f8b<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>\u552f\u8b80\u3001\u53ef\u88ab\u4e2d\u65b7\u7684\u64cd\u4f5c<\/strong>\uff08\u5982\u641c\u5c0b\u806f\u60f3\u3001\u7be9\u9078\u9810\u89bd\uff09\uff1a\u7121\u689d\u4ef6\u4f7f\u7528 <code>debounce<\/code> + <code>flatMapLatest<\/code> \/ <code>collectLatest<\/code>\uff0c\u65b0\u4f86\u820a\u4ea1\u3002<\/li>\n<li><strong>\u4e0d\u53ef\u4e2d\u65b7\u7684\u95dc\u9375\u4e8b\u52d9<\/strong>\uff08\u5982\u4ed8\u6b3e\u3001\u63d0\u4ea4\u8a02\u55ae\u3001\u9580\u7981\u958b\u9580\uff09\uff1a\u5fc5\u9808\u4f7f\u7528 <strong>UI \u7981\u7528 + <code>compareAndSet<\/code> \u539f\u5b50\u6436\u4f54 + Job <code>isActive<\/code> \u6392\u4ed6\u963b\u65b7<\/strong>\uff0c\u672c\u5730\u8cc7\u6599\u5eab\u5beb\u5165\u624d\u7528 <code>withContext(NonCancellable)<\/code> \u4fdd\u8b77\uff01<\/li>\n<\/ul>\n<\/blockquote>\n<hr>\n<h2>\u4e09\u7a2e\u9632\u6296\u65b9\u6848\u5c0d\u6bd4\u77e9\u9663<\/h2>\n<table>\n<thead>\n<tr>\n<th align=\"left\">\u8a55\u4f30\u7dad\u5ea6<\/th>\n<th align=\"left\">UI \u7269\u7406\u9632\u79a6<\/th>\n<th align=\"left\">Job \u9059\u63a7\u5668<\/th>\n<th align=\"left\">Flow \u97ff\u61c9\u5f0f\u7ba1\u9053<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td align=\"left\"><strong>\u4e3b\u8981\u9632\u79a6\u5c0d\u8c61<\/strong><\/td>\n<td align=\"left\">\u4f7f\u7528\u8005\u66b4\u529b\u9023\u9ede\u6309\u9215<\/td>\n<td align=\"left\">\u55ae\u4e00\u4efb\u52d9\u7684\u751f\u547d\u9031\u671f\u63a7\u5236<\/td>\n<td align=\"left\">\u9ad8\u983b\u9023\u7e8c\u8cc7\u6599\u6d41\u3001\u641c\u5c0b\u8f38\u5165\u6846<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u5178\u578b\u5834\u666f<\/strong><\/td>\n<td align=\"left\">\u8a02\u55ae\u63d0\u4ea4\u3001\u4ed8\u6b3e\u3001\u958b\u9580\u6307\u4ee4<\/td>\n<td align=\"left\">\u9801\u9762\u8df3\u8f49\u3001\u55ae\u6b21\u975e\u540c\u6b65\u6309\u9215<\/td>\n<td align=\"left\">\u5373\u6642\u641c\u5c0b\u5efa\u8b70\u3001\u6ed1\u687f\u6ed1\u52d5\u3001\u611f\u6e2c\u5668\u9ad8\u983b\u4e8b\u4ef6<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u5be6\u4f5c\u96e3\u5ea6<\/strong><\/td>\n<td align=\"left\">\u6700\u7c21\u55ae\uff08\u7d81\u5b9a <code>enabled<\/code>\uff09<\/td>\n<td align=\"left\">\u4e2d\u7b49\uff08\u7dad\u8b77 <code>var job: Job?<\/code>\uff09<\/td>\n<td align=\"left\">\u9700\u719f\u6089 Flow \u64cd\u4f5c\u7b26\u8207\u80cc\u58d3\u6a5f\u5236<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u591a\u57f7\u884c\u7dd2\u5b89\u5168\u6027<\/strong><\/td>\n<td align=\"left\">\u9700\u6ce8\u610f\u72c0\u614b\u66f4\u65b0\u7684\u4e3b\u57f7\u884c\u7dd2\u6d3e\u767c<\/td>\n<td align=\"left\">\u5dee\uff08\u591a\u57f7\u884c\u7dd2\u4f75\u767c\u5b58\u53d6 <code>job<\/code> \u8b8a\u6578\u9700\u540c\u6b65\uff09<\/td>\n<td align=\"left\">\u6975\u9ad8\uff08Channel \u5167\u90e8\u81ea\u5e36\u57f7\u884c\u7dd2\u5b89\u5168\uff09<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u6642\u5e8f\u5012\u639b\u9632\u79a6<\/strong><\/td>\n<td align=\"left\">\u5426\uff08\u7121\u6cd5\u53d6\u6d88\u5df2\u767c\u9001\u7684\u8acb\u6c42\uff09<\/td>\n<td align=\"left\">\u652f\u63f4\uff08\u624b\u52d5\u547c\u53eb <code>cancel()<\/code>\uff09<\/td>\n<td align=\"left\">\u5b8c\u7f8e\u539f\u751f\u652f\u63f4\uff08<code>flatMapLatest<\/code> \u81ea\u52d5\u53d6\u6d88\u820a\u8acb\u6c42\uff09<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u7dad\u8b77\u6027<\/strong><\/td>\n<td align=\"left\">\u72c0\u614b\u96f6\u6563\u5728 UI<\/td>\n<td align=\"left\">ViewModel \u5167\u6b98\u7559\u53ef\u8b8a\u72c0\u614b<\/td>\n<td align=\"left\">\u5ba3\u544a\u5f0f\u55ae\u5411\u8cc7\u6599\u6d41\uff08UDF\uff09\uff0c\u6700\u597d\u5beb\u55ae\u5143\u6e2c\u8a66<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<h2>\u5de5\u4f4d\u5927\u5be6\u8a71\u8207\u6536\u5de5<\/h2>\n<p>\u5728 Android \u958b\u767c\u88e1\uff0c\u4e0d\u8981\u60f3\u8457\u7528\u540c\u4e00\u62db\u6253\u5929\u4e0b\uff1a<\/p>\n<ol>\n<li><strong>\u53ea\u8981\u727d\u6d89\u5230\u9322\u3001\u55ae\u5411\u4e8b\u52d9\u3001\u5be6\u9ad4\u786c\u9ad4\u63a7\u5236<\/strong>\uff1a\u7528 <strong>UI \u7981\u7528 + CAS \u539f\u5b50\u6436\u4f54 + Job <code>isActive<\/code> \u6392\u4ed6\u963b\u65b7<\/strong>\uff0c\u5be7\u53ef\u4e0d\u7406\u5f8c\u7e8c\u9ede\u64ca\uff0c\u4e5f\u7d55\u4e0d\u4e2d\u65b7\u57f7\u884c\u4e2d\u7684\u4ea4\u6613\u3002<\/li>\n<li><strong>\u53ea\u8981\u662f\u5373\u6642\u6253\u5b57\u3001\u52d5\u614b\u641c\u5c0b\u3001\u904e\u6ffe\u6e05\u55ae<\/strong>\uff1a\u4e00\u5f8b\u63a1\u7528 <strong>Flow \u7ba1\u9053\uff08<code>debounce(300L)<\/code> + <code>flatMapLatest<\/code>\uff09<\/strong>\uff0c\u8b93\u64cd\u4f5c\u7b26\u5e6b\u4f60\u8655\u7406\u9632\u6296\u8207\u904e\u671f\u8acb\u6c42\u7684\u81ea\u52d5\u53d6\u6d88\u3002<\/li>\n<\/ol>\n<p>\u611f\u8b1d\u89c0\u770b\uff0c\u6536\u5de5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0d\u7ba1\u8655\u7406\u4f55\u7a2e\u554f\u984c\uff0c\u6211\u5011\u90fd\u5fc5\u9808\u8003\u616e\u662f\u51fa\u65bc\u4f55\u7a2e\u5834\u666f\uff0c\u5c31\u50cf\u662f<\/p>\n<p>\u4f7f\u7528\u8005\u5728 1 \u79d2\u5167\u9ede\u4e86 10 \u6b21\u3002\u7531\u65bc launch \u7684\u5929\u6027\u662f\u300c\u5c04\u5f8c\u4e0d\u7406 (fire-and-forget)\u300d\uff0c\u4f60\u7684 App \u4e5f\u6703\u5fe0\u5be6\u5730\u555f\u52d5 10 \u500b\u7368\u7acb\u7684 Coroutine\uff0c\u767c\u8d77 10 \u6b21\u7db2\u8def\u8acb\u6c42\u3002<\/p>\n","protected":false},"author":1,"featured_media":1243,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[209,248,276],"_links":{"self":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts\/649"}],"collection":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=649"}],"version-history":[{"count":13,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts\/649\/revisions"}],"predecessor-version":[{"id":1608,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts\/649\/revisions\/1608"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/media\/1243"}],"wp:attachment":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=649"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=649"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}