{"id":123625,"date":"2026-11-07T22:01:12","date_gmt":"2026-11-07T14:01:12","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/123625.html"},"modified":"2026-11-07T22:01:12","modified_gmt":"2026-11-07T14:01:12","slug":"%e6%88%90%e4%b8%ba%e5%85%a8%e6%a0%88%c2%b7%e5%9f%ba%e7%a1%80%e8%a1%a5%e5%85%85%c2%b7node-js-%e8%bf%90%e8%a1%8c%e6%97%b6%ef%bc%9a%e4%ba%8b%e4%bb%b6%e5%be%aa%e7%8e%af%e4%b8%8e%e5%bc%82%e6%ad%a5","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/123625.html","title":{"rendered":"\u6210\u4e3a\u5168\u6808\u00b7\u57fa\u7840\u8865\u5145\u00b7Node.js \u8fd0\u884c\u65f6\uff1a\u4e8b\u4ef6\u5faa\u73af\u4e0e\u5f02\u6b65"},"content":{"rendered":"

\u6210\u4e3a\u5168\u6808\u00b7\u57fa\u7840\u8865\u5145\u00b7Node.js \u8fd0\u884c\u65f6：\u4e8b\u4ef6\u5faa\u73af\u4e0e\u5f02\u6b65<\/h2>\n

\u8fd9\u4e2a\u9879\u76ee\u91cc\u6709\u4e00\u6bb5\u4ee3\u7801，\u5b83\u7684\u5916\u5f62\u662f async，\u4f46\u5185\u90e8\u8c03\u7528\u7684\u662f\u4e00\u4e2a\u540c\u6b65\u51fd\u6570：<\/p>\n

\/** \u540c\u4e00\u6279 SQL \u5728 SQLite \u4e8b\u52a1\u6216 D1 batch \u4e2d\u6267\u884c；\u5f02\u5e38\u6574\u4f53\u56de\u6eda\u3002 *\/<\/span>
\nexport<\/span> async<\/span> function<\/span> atomic<\/span>(<\/span>db:<\/span> Db,<\/span> statements:<\/span> Statement[<\/span>]<\/span>)<\/span>:<\/span> Promise<\/span><<\/span>number<\/span>[<\/span>]<\/span>><\/span> {<\/span>
\n const<\/span> client =<\/span> (<\/span>db as<\/span> unknown<\/span> as<\/span> {<\/span> $client:<\/span> Database.<\/span>Database |<\/span> D1Client }<\/span>)<\/span>.<\/span>$client;<\/span>
\n if<\/span> (<\/span>'batch'<\/span> in<\/span> client)<\/span> {<\/span>
\n const<\/span> results =<\/span> await<\/span> client.<\/span>batch<\/span>(<\/span>
\n statements.<\/span>map<\/span>(<\/span>(<\/span>s)<\/span> =><\/span> client.<\/span>prepare<\/span>(<\/span>s.<\/span>sql)<\/span>.<\/span>bind<\/span>(<\/span>…<\/span>s.<\/span>params)<\/span>)<\/span>,<\/span>
\n )<\/span>;<\/span>
\n return<\/span> results.<\/span>map<\/span>(<\/span>(<\/span>r)<\/span> =><\/span> r.<\/span>meta.<\/span>changes)<\/span>;<\/span>
\n }<\/span>
\n return<\/span> client.<\/span>transaction<\/span>(<\/span>(<\/span>)<\/span> =><\/span>
\n statements.<\/span>map<\/span>(<\/span>(<\/span>s)<\/span> =><\/span> client.<\/span>prepare<\/span>(<\/span>s.<\/span>sql)<\/span>.<\/span>run<\/span>(<\/span>…<\/span>s.<\/span>params)<\/span>.<\/span>changes)<\/span>,<\/span>
\n )<\/span>(<\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

\u4e00\u4e2a async \u51fd\u6570，\u5374\u5728\u672c\u5730\u8def\u5f84\u4e0a\u5b8c\u5168\u540c\u6b65\u6267\u884c\u3002<\/p>\n

\"\u6210\u4e3a\u5168\u6808\u00b7\u57fa\u7840\u8865\u5145\u00b7Node.js<\/p>\n

\u8fd9\u5728 TypeScript \u91cc\u5408\u6cd5（async \u51fd\u6570\u8fd4\u56de Promise，\u91cc\u9762\u53ef\u4ee5\u662f\u540c\u6b65\u903b\u8f91），\u4f46\u5b83\u7acb\u523b\u5e26\u6765\u4e00\u4e2a\u95ee\u9898：\u8c03\u7528\u65b9\u80fd\u5047\u8bbe\u5b83\u662f\u5f02\u6b65\u7684\u5417？<\/p>\n

\u7b54\u6848\u662f\u4e0d\u80fd\u3002\u800c\u8fd9\u4e2a\u9879\u76ee\u91cc\u6709\u4e00\u6574\u7c7b\u4ee3\u7801，\u4e13\u95e8\u5904\u7406"\u6211\u4e0d\u786e\u5b9a\u90a3\u4e2a Promise \u4f1a\u4e0d\u4f1a\u5df2\u7ecf\u7ed3\u675f"\u3002<\/p>\n

\u8fd9\u7bc7\u8bb2\u8fd9\u4e2a\u9879\u76ee\u7684 Node \u8fd0\u884c\u65f6\u7ecf\u9a8c，\u4ee5\u53ca\u4e3a\u4ec0\u4e48 Flutter \u90a3\u8fb9\u7684\u6bcf\u4e00\u5904\u5f02\u6b65\u90fd\u8981\u8bb0\u8eab\u4efd（M4-09 \u90a3\u4e9b epoch \u68c0\u67e5，\u5176\u5b9e\u6839\u6e90\u5728\u8fd9\u91cc）\u3002<\/p>\n

\u5355\u7ebf\u7a0b\u610f\u5473\u7740：await \u4e4b\u95f4\u7684\u4ee3\u7801\u4f1a\u88ab\u63d2\u961f<\/h3>\n

\u5148\u628a\u6700\u5173\u952e\u7684\u524d\u63d0\u8bf4\u6e05\u695a，\u56e0\u4e3a\u5b83\u89e3\u91ca\u4e86\u540e\u9762\u6240\u6709\u7684\u590d\u6742\u5ea6\u3002<\/p>\n

Node \u7684 JavaScript \u6267\u884c\u662f\u5355\u7ebf\u7a0b\u7684\u3002 \u800c\u5355\u7ebf\u7a0b\u4e0d\u4ee3\u8868"\u987a\u5e8f\u6267\u884c\u5230\u5e95"\u2014\u2014\u5b83\u4ee3\u8868\u7684\u662f：<\/p>\n

\u4e00\u6b21\u53ea\u6267\u884c\u4e00\u6bb5\u4ee3\u7801，\u4f46\u4f1a\u5728 await \u8fd9\u4e9b\u8ba9\u51fa\u70b9\u4e3b\u52a8\u628a\u63a7\u5236\u6743\u4ea4\u51fa\u53bb\u3002<\/p>\n

\"\u4e8b\u4ef6\u5faa\u73af\"<\/p>\n

\u800c"\u8ba9\u51fa\u70b9"\u5177\u4f53\u662f\u54ea\u4e9b，\u53d6\u51b3\u4e8e\u5177\u4f53\u662f\u4ec0\u4e48\u64cd\u4f5c：<\/p>\n\n\u64cd\u4f5c\u4f1a\u4e0d\u4f1a\u8ba9\u51fa<\/tr>\n\n\n\n\n\n\n
\u8bfb\u53d6\u6587\u4ef6（fs.readFile）<\/td>\n\u4f1a，\u6587\u4ef6\u5728\u78c1\u76d8\u4e0a，\u5f97\u7b49 I\/O \u5b8c\u6210<\/td>\n<\/tr>\n
\u7f51\u7edc\u8bf7\u6c42（fetch）<\/td>\n\u4f1a，\u8981\u7b49\u5bf9\u7aef\u54cd\u5e94<\/td>\n<\/tr>\n
\u6570\u636e\u5e93\u67e5\u8be2<\/td>\n\u4f1a，\u6570\u636e\u53ef\u80fd\u5728\u8fdc\u7aef<\/td>\n<\/tr>\n
\u7eaf\u8ba1\u7b97（\u6392\u5e8f\u3001\u5927\u5faa\u73af）<\/td>\n\u4e0d\u4f1a，\u4e00\u76f4\u5360\u7740<\/td>\n<\/tr>\n
\u5b9a\u65f6\u5668（setTimeout）<\/td>\n\u4f1a\u7b49，\u4f46\u7b49\u7684\u662f\u65f6\u95f4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u800c"\u8ba9\u51fa"\u671f\u95f4，\u540c\u4e00\u4e2a\u7ebf\u7a0b\u4f1a\u53bb\u5904\u7406\u522b\u7684\u4e8b\u2014\u2014\u5305\u62ec\u53e6\u4e00\u4e2a\u8bf7\u6c42\u7684\u4ee3\u7801\u3002<\/p>\n

\u8fd9\u5c31\u662f\u4e8b\u4ef6\u5faa\u73af\u7684\u6838\u5fc3，\u4e5f\u662f\u6240\u6709\u5f02\u6b65 bug \u7684\u6839\u6e90\u3002<\/p>\n

\u4e00\u4e2a\u5fc5\u987b\u8bb0\u4f4f\u7684\u540e\u679c：await \u4e4b\u540e\u7684\u4e16\u754c\u53ef\u80fd\u53d8\u4e86<\/h3>\n

\u7528\u4e00\u4e2a\u771f\u5b9e\u573a\u666f\u8bf4\u660e\u3002\u770b\u8fd9\u4e2a\u9879\u76ee\u7684\u5237\u65b0\u903b\u8f91（\u7b80\u5316）：<\/p>\n

Future<<\/span>void<\/span>><\/span> refresh<\/span>(<\/span>)<\/span> {<\/span>
\n if<\/span> (<\/span>_refresh !=<\/span> null<\/span>)<\/span> return<\/span> _refresh!<\/span>;<\/span>
\n final start =<\/span> epoch;<\/span>
\n final task =<\/span> (<\/span>)<\/span> async {<\/span>
\n final token =<\/span> await<\/span> vault.<\/span>read<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u2190 \u7b2c\u4e00\u6b21\u8ba9\u51fa<\/span>
\n if<\/span> (<\/span>start !=<\/span> epoch)<\/span> throw<\/span> SessionChanged<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u2190 \u68c0\u67e5\u4e16\u754c\u6709\u6ca1\u6709\u53d8<\/span>
\n …<\/span>
\n final data =<\/span> await<\/span> request<\/span>(<\/span>Endpoints.<\/span>refresh,<\/span> …<\/span>)<\/span>;<\/span> \/\/ \u2190 \u7b2c\u4e8c\u6b21\u8ba9\u51fa<\/span>
\n await<\/span> install<\/span>(<\/span>data,<\/span> expectedEpoch:<\/span> start)<\/span>;<\/span> \/\/ \u2190 \u7b2c\u4e09\u6b21\u8ba9\u51fa<\/span>
\n }<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\u4e09\u5904 await，\u4e24\u5904\u68c0\u67e5\u3002<\/p>\n

\u800c\u68c0\u67e5\u7684\u5185\u5bb9\u662f start != epoch\u2014\u2014\u201c\u6211\u53d1\u8d77\u8fd9\u6b21\u64cd\u4f5c\u65f6，\u90a3\u4e2a\u4f1a\u8bdd\u8fd8\u5728\u5417？\u201d<\/p>\n

\u4e3a\u4ec0\u4e48\u5fc5\u987b\u68c0\u67e5？\u56e0\u4e3a\u5728\u6bcf\u4e2a await \u5904，\u7528\u6237\u5b8c\u5168\u53ef\u80fd\u5df2\u7ecf\u505a\u4e86\u522b\u7684\u4e8b：<\/p>\n

\u65f6\u523b T1：refresh() \u5f00\u59cb，\u8bb0\u4e0b epoch = 3
\n\u65f6\u523b T1+\u03b5：await vault.read() \u8ba9\u51fa
\n \u2193 \u6b64\u65f6\u7528\u6237\u70b9\u4e86"\u9000\u51fa\u767b\u5f55"
\n \u2193 clear() \u6267\u884c，epoch \u53d8\u6210 4
\n\u65f6\u523b T2：await \u8fd4\u56de，\u7ee7\u7eed\u6267\u884c
\n \u5982\u679c\u4e0d\u68c0\u67e5 \u2192 \u7528 epoch 3 \u7684\u4e0a\u4e0b\u6587\u5b8c\u6210\u5237\u65b0
\n \u7ed3\u679c \u2192 token \u88ab\u5199\u56de\u4e00\u4e2a\u5df2\u7ecf\u767b\u51fa\u7684\u4f1a\u8bdd<\/p>\n

\u8fd9\u5c31\u662f Flutter \u90a3\u8fb9\u7684 epoch\u3002\u800c\u5b83\u5728 Node \u8fd9\u8fb9\u540c\u6837\u5b58\u5728\u2014\u2014M1-32 \u90a3\u4e2a\u5fae\u4fe1\u767b\u5f55\u5c31\u662f\u540c\u4e00\u5957：atomic \u91cc\u7684 SessionChanged \u5f02\u5e38\u5904\u7406\u7684\u5c31\u662f\u8fd9\u4e2a\u3002<\/p>\n

\u6240\u4ee5\u8fd9\u4e00\u7bc7\u7684\u6838\u5fc3\u7ed3\u8bba\u662f：<\/p>\n

\u5728\u5355\u7ebf\u7a0b\u4e8b\u4ef6\u5faa\u73af\u91cc，await \u4e0d\u53ea\u662f"\u7b49\u4e00\u4f1a\u513f"，\u5b83\u662f\u4e00\u4e2a"\u4e16\u754c\u53ef\u80fd\u5df2\u7ecf\u53d8\u4e86"\u7684\u8fb9\u754c\u3002<\/p>\n

\u800c\u8fd9\u4e2a\u5224\u65ad\u6807\u51c6\u662f\u901a\u7528\u7684，\u4e0d\u9650\u4e8e\u5f02\u6b65 I\/O：<\/p>\n\nawait \u4e4b\u95f4\u53ef\u80fd\u53d1\u751f\u4ec0\u4e48\u9700\u8981\u68c0\u67e5\u5417<\/tr>\n\n\n\n\n\n
\u7528\u6237\u5207\u6362\u4e86\u8d26\u53f7 \/ \u767b\u51fa<\/td>\n\u8981<\/td>\n<\/tr>\n
\u7528\u6237\u5173\u95ed\u4e86\u9875\u9762（Flutter Widget dispose）<\/td>\n\u8981<\/td>\n<\/tr>\n
\u9875\u9762\u4ece\u540e\u53f0\u5207\u5230\u524d\u53f0<\/td>\n\u53ef\u80fd\u8981<\/td>\n<\/tr>\n
\u5355\u7eaf\u7684\u5b9a\u65f6\u5668\u5230\u671f<\/td>\n\u4e0d\u9700\u8981<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e3a\u4ec0\u4e48\u8fd9\u4e2a\u9879\u76ee\u91cc\u7684\u5f02\u6b65\u90fd\u8981"\u8bb0\u8eab\u4efd"<\/h3>\n

\u73b0\u5728\u8bb2\u8fd9\u4e2a\u9879\u76ee\u91cc\u53cd\u590d\u51fa\u73b0\u7684\u90a3\u4e2a\u6a21\u5f0f\u3002<\/p>\n

M4-12 \u7684\u5217\u8868\u9875：<\/p>\n

final ticket =<\/span> ++<\/span>serial;<\/span>
\nsetState<\/span>(<\/span>(<\/span>)<\/span> {<\/span> busy =<\/span> true<\/span>;<\/span> error =<\/span> null<\/span>;<\/span> }<\/span>)<\/span>;<\/span>
\n…<\/span>
\nfinal p =<\/span> await<\/span> repo.<\/span>track<\/span>(<\/span>dependencies,<\/span> (<\/span>)<\/span> =><\/span> repo.<\/span>articles<\/span>(<\/span>…<\/span>)<\/span>)<\/span>;<\/span>
\nif<\/span> (<\/span>!<\/span>mounted ||<\/span> ticket !=<\/span> serial)<\/span> return<\/span>;<\/span> \/\/ \u2190 \u8bb0\u4e86\u53f7，\u56de\u6765\u6838\u5bf9<\/span><\/p>\n

M4-10 \u7684 AsyncPane：<\/p>\n

final ticket =<\/span> ++<\/span>serial;<\/span>
\n…<\/span>
\nif<\/span> (<\/span>mounted &&<\/span> ticket ==<\/span> serial)<\/span> {<\/span>
\n setState<\/span>(<\/span>(<\/span>)<\/span> {<\/span> value =<\/span> result;<\/span> error =<\/span> null<\/span>;<\/span> keys =<\/span> nextKeys;<\/span> }<\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

M4-15 \u7684 WebView \u6807\u9898\u8f6e\u8be2：<\/p>\n

final url =<\/span> currentUrl;<\/span>
\nfinal next =<\/span> (<\/span>await<\/span> controller!<\/span>.<\/span>getTitle<\/span>(<\/span>)<\/span>)<\/span>?.<\/span>trim<\/span>(<\/span>)<\/span>;<\/span>
\nif<\/span> (<\/span>mounted &&<\/span> url ==<\/span> currentUrl &&<\/span> next !=<\/span> title)<\/span> {<\/span> \/\/ \u2190 \u8bb0\u4e86 URL，\u56de\u6765\u6838\u5bf9<\/span>
\n setState<\/span>(<\/span>(<\/span>)<\/span> =><\/span> title =<\/span> next?.<\/span>isNotEmpty ==<\/span> true<\/span> ?<\/span> next :<\/span> null<\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

M4-09 \u7684 epoch \u68c0\u67e5\u3002<\/p>\n

\u56db\u5904\u770b\u8d77\u6765\u6beb\u4e0d\u76f8\u5e72\u7684\u4ee3\u7801，\u7528\u7684\u662f\u540c\u4e00\u4e2a\u6a21\u5f0f：\u53d1\u8d77\u65f6\u8bb0\u4e0b\u8eab\u4efd，\u56de\u6765\u65f6\u6838\u5bf9，\u4e0d\u5339\u914d\u5c31\u4e22\u5f03\u3002<\/p>\n

\u800c Flutter \u90a3\u8fb9\u8fd8\u6709\u4e24\u4e2a\u6761\u4ef6：<\/p>\n\n\u6761\u4ef6\u9632\u4ec0\u4e48<\/tr>\n\n\n\n
mounted<\/td>\nWidget \u5df2\u7ecf\u9500\u6bc1 \u2192 setState \u4f1a\u629b\u5f02\u5e38<\/td>\n<\/tr>\n
ticket == serial<\/td>\n\u6709\u66f4\u65b0\u7684\u8bf7\u6c42\u5df2\u53d1\u51fa \u2192 \u65e7\u7ed3\u679c\u4e0d\u8be5\u8986\u76d6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

mounted \u90a3\u4e2a\u662f Flutter \u7279\u6709\u7684，\u56e0\u4e3a Widget \u751f\u547d\u5468\u671f\u662f\u6846\u67b6\u7ba1\u7406\u7684\u3002\u800c ticket\/epoch\/url \u90a3\u4e00\u5c42\u662f\u901a\u7528\u7684\u3002<\/p>\n

\u6240\u4ee5\u5982\u679c\u53ea\u770b\u8fd9\u4e2a\u6a21\u5f0f，\u4f60\u4f1a\u4ee5\u4e3a\u8fd9\u56db\u5904\u7684\u4ee3\u7801\u662f\u56db\u4e2a\u4e0d\u540c\u7684\u6280\u5de7\u3002\u5b9e\u9645\u4e0a\u5b83\u4eec\u662f\u540c\u4e00\u53e5\u8bdd：<\/p>\n

\u5f02\u6b65\u64cd\u4f5c\u7684\u7ed3\u679c，\u53ea\u5bf9\u53d1\u8d77\u5b83\u7684\u90a3\u4e2a\u4e16\u754c\u6709\u6548\u3002<\/p>\n

\u5355\u98de：\u4e00\u4e2a\u7279\u4f8b<\/h3>\n

\u800c\u8fd9\u4e2a\u6a21\u5f0f\u6709\u4e00\u4e2a\u7279\u6b8a\u5f62\u6001，M4-09 \u8bb2\u8fc7，\u53eb"\u5355\u98de"：<\/p>\n

Future<<\/span>void<\/span>><\/span> refresh<\/span>(<\/span>)<\/span> {<\/span>
\n if<\/span> (<\/span>_refresh !=<\/span> null<\/span>)<\/span> return<\/span> _refresh!<\/span>;<\/span> \/\/ \u2190 \u4e0d\u8bb0\u65b0\u8eab\u4efd，\u800c\u662f\u590d\u7528\u5df2\u6709\u7684<\/span>
\n …<\/span>
\n}<\/span><\/p>\n

\u4e3a\u4ec0\u4e48\u5237\u65b0\u8981\u590d\u7528\u800c\u4e0d\u662f\u5404\u5237\u5404\u7684？<\/p>\n

\u56e0\u4e3a\u5b83\u662f\u5207\u6362\u8bed\u4e49\u7684\u64cd\u4f5c（\u7b2c\u4e00\u6b21\u5237\u6210\u529f，\u7b2c\u4e8c\u6b21\u5c31\u4f1a\u56e0 token \u5df2\u8f6e\u6362\u800c\u5931\u8d25）\u3002\u800c\u4e94\u4e2a\u5e76\u53d1 401 \u4f1a\u89e6\u53d1\u4e94\u6b21\u5237\u65b0，\u800c\u8f6e\u6362\u8fc7\u7684 token \u7528\u4e00\u6b21\u5c31\u4f5c\u5e9f\u3002<\/p>\n

\u6240\u4ee5\u8fd9\u91cc\u7684\u5904\u7406\u4e0d\u662f"\u8bb0\u8eab\u4efd\u7136\u540e\u4e22\u5f03\u65e7\u7684"，\u800c\u662f"\u540e\u6765\u7684\u76f4\u63a5\u7528\u524d\u4e00\u4e2a\u7684\u7ed3\u679c"\u3002<\/p>\n\n\u573a\u666f\u5904\u7406\u7406\u7531<\/tr>\n\n\n\n\n
\u5217\u8868\u52a0\u8f7d<\/td>\n\u8bb0 ticket，\u65e7\u7ed3\u679c\u4e22\u5f03<\/td>\n\u591a\u4e2a\u8bf7\u6c42\u90fd\u5408\u6cd5，\u53ea\u8981\u6700\u65b0\u7684<\/td>\n<\/tr>\n
\u6807\u9898\u8f6e\u8be2<\/td>\n\u8bb0 url，\u4e0d\u5339\u914d\u4e22\u5f03<\/td>\n\u540c\u4e0a<\/td>\n<\/tr>\n
\u4ee4\u724c\u5237\u65b0<\/td>\n\u590d\u7528 _refresh<\/td>\n\u91cd\u590d\u6267\u884c\u4f1a\u5931\u8d25，\u5fc5\u987b\u5171\u4eab<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u8fd9\u4e2a\u533a\u522b\u5f88\u91cd\u8981：\u524d\u8005\u662f"\u591a\u4e2a\u90fd\u53ef\u4ee5，\u53ea\u8981\u4e00\u4e2a\u7ed3\u679c"，\u540e\u8005\u662f"\u591a\u4e2a\u4f1a\u4e92\u76f8\u7834\u574f"\u3002<\/p>\n

\u800c\u5224\u65ad\u6807\u51c6\u662f：\u91cd\u590d\u6267\u884c\u8fd9\u4e2a\u64cd\u4f5c，\u662f\u5426\u5b89\u5168？<\/p>\n

    \n
  • \u8bfb\u64cd\u4f5c \u2192 \u5b89\u5168（\u8bb0\u8eab\u4efd\u5373\u53ef）<\/li>\n
  • \u5207\u6362\u8bed\u4e49\u7684\u64cd\u4f5c \u2192 \u4e0d\u5b89\u5168（\u5fc5\u987b\u5171\u4eab）<\/li>\n
  • \u521b\u5efa\u64cd\u4f5c \u2192 \u4e0d\u5b89\u5168（\u4f1a\u91cd\u590d\u521b\u5efa，M4-20 \u8bb2\u7684\u90a3\u4e2a）<\/li>\n<\/ul>\n

    \"\u5e76\u53d1\u548c\u5e76\u884c\"<\/p>\n

    \u5e76\u884c\u4e0d\u662f\u5e76\u884c：async \u53ea\u662f"\u4e0d\u963b\u585e"<\/h3>\n

    \u73b0\u5728\u8bb2\u4e00\u4e2a\u5e38\u89c1\u8bef\u89e3\u3002<\/p>\n

    const<\/span> [<\/span>a,<\/span> b,<\/span> c]<\/span> =<\/span> await<\/span> Promise<\/span>.<\/span>all<\/span>(<\/span>[<\/span>
    \n fetchA<\/span>(<\/span>)<\/span>,<\/span> fetchB<\/span>(<\/span>)<\/span>,<\/span> fetchC<\/span>(<\/span>)<\/span>,<\/span>
    \n]<\/span>)<\/span>;<\/span><\/p>\n

    \u770b\u8d77\u6765\u662f\u4e09\u4e2a\u5e76\u884c，\u5b9e\u9645\u662f：\u4e09\u4e2a\u90fd\u53d1\u8d77 \u2192 \u7b49\u7b2c\u4e00\u4e2a\u5b8c\u6210 \u2192 \u7b49\u7b2c\u4e8c\u4e2a \u2192 \u7b49\u7b2c\u4e09\u4e2a\u3002<\/p>\n

    \u800c"\u4e09\u4e2a\u90fd\u53d1\u8d77"\u624d\u662f\u5e76\u884c\u7684\u90e8\u5206\u2014\u2014\u5b83\u4eec\u51e0\u4e4e\u540c\u65f6\u628a\u8bf7\u6c42\u9001\u51fa\u53bb\u4e86\u3002\u800c Node \u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\u4e0d\u963b\u585e：<\/p>\n

      \n
    • \u53d1\u8d77 fetchA \u2192 \u8ba9\u51fa，\u53bb\u5904\u7406\u522b\u7684\u8fde\u63a5<\/li>\n
    • \u53d1\u8d77 fetchB \u2192 \u8ba9\u51fa<\/li>\n
    • \u53d1\u8d77 fetchC \u2192 \u8ba9\u51fa<\/li>\n
    • \u4e09\u8005\u7684\u54cd\u5e94\u9646\u7eed\u5230\u8fbe，\u56de\u8c03\u8fdb\u4e8b\u4ef6\u961f\u5217<\/li>\n<\/ul>\n

      \u6240\u4ee5\u5b83\u662f"\u5e76\u53d1 I\/O"，\u4e0d\u662f"\u5e76\u884c\u8ba1\u7b97"\u3002<\/p>\n\n\u5e76\u53d1 I\/O\u5e76\u884c\u8ba1\u7b97<\/tr>\n\n\n\n\n
      \u573a\u666f<\/td>\n\u591a\u4e2a\u7f51\u7edc\u8bf7\u6c42<\/td>\nCPU \u5bc6\u96c6\u8ba1\u7b97<\/td>\n<\/tr>\n
      Node \u80fd\u529b<\/td>\n\u2705 \u5355\u7ebf\u7a0b\u8db3\u591f<\/td>\n\u274c \u9700\u8981 worker_threads<\/td>\n<\/tr>\n
      \u74f6\u9888<\/td>\n\u7f51\u7edc\u5ef6\u8fdf<\/td>\nCPU \u6838\u6570<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u800c\u8fd9\u4e2a\u9879\u76ee\u91cc\u90a3\u4e2a"\u767b\u5f55\u63a5\u53e3\u5f88\u6162"\u7684\u95ee\u9898，\u6b63\u5c5e\u4e8e\u7b2c\u4e8c\u7c7b\u2014\u2014B-06 \u8bb2\u8fc7，\u6162\u5728 bcrypt \u7684 12 \u8f6e\u54c8\u5e0c，\u90a3\u662f\u7eaf CPU \u8ba1\u7b97\u3002<\/p>\n

      \u5b83\u4e0d\u4f1a\u56e0\u4e3a\u6539\u6210 async \u800c\u53d8\u5feb\u3002 \u56e0\u4e3a async \u53ea\u89e3\u51b3"\u7b49\u5f85"\u95ee\u9898，\u4e0d\u89e3\u51b3"\u8ba1\u7b97"\u95ee\u9898\u3002<\/p>\n

      \u600e\u4e48\u5224\u65ad\u81ea\u5df1\u9047\u5230\u4e86\u54ea\u4e00\u79cd<\/h4>\n

      \u4e00\u4e2a\u7b80\u5355\u7684\u533a\u5206\u65b9\u6cd5：\u628a\u8f93\u5165\u6362\u6210\u5e38\u91cf\u518d\u6d4b\u4e00\u6b21\u3002<\/p>\n

        \n
      • \u5982\u679c\u6162\u5728\u6570\u636e\u91cf \u2192 \u5927\u6982\u7387\u662f I\/O \u6216\u67e5\u8be2<\/li>\n
      • \u5982\u679c\u6162\u5728\u8ba1\u7b97 \u2192 \u5e38\u91cf\u8f93\u5165\u4e5f\u4f1a\u6162<\/li>\n<\/ul>\n

        \u8fd9\u4e2a\u9879\u76ee\u91cc bcrypt \u5c31\u662f\u540e\u8005\u2014\u2014\u4f20 1 \u4e2a\u5b57\u7b26\u548c\u4f20 100 \u4e2a\u5b57\u7b26\u4e00\u6837\u6162，\u56e0\u4e3a\u8f6e\u6570\u56fa\u5b9a\u3002<\/p>\n

        \u540c\u6b65\u4ee3\u7801\u4f1a\u963b\u585e：\u6700\u5bb9\u6613\u72af\u7684\u9519<\/h3>\n

        \u56de\u5230\u5f00\u5934\u90a3\u4e2a atomic：<\/p>\n

        return<\/span> client.<\/span>transaction<\/span>(<\/span>(<\/span>)<\/span> =><\/span>
        \n statements.<\/span>map<\/span>(<\/span>(<\/span>s)<\/span> =><\/span> client.<\/span>prepare<\/span>(<\/span>s.<\/span>sql)<\/span>.<\/span>run<\/span>(<\/span>…<\/span>s.<\/span>params)<\/span>.<\/span>changes)<\/span>,<\/span>
        \n)<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

        \u8fd9\u4e00\u6bb5\u662f\u540c\u6b65\u7684\u2014\u2014transaction() \u7acb\u5373\u6267\u884c\u5b8c，\u8fd4\u56de\u6570\u7ec4，\u51fd\u6570\u7ed3\u675f\u3002<\/p>\n

        \u800c\u8c03\u7528\u65b9\u770b\u5230\u7684\u662f\u4e00\u4e2a async \u51fd\u6570，\u6240\u4ee5\u5b83 await \u4e86\u4e00\u6b21：<\/p>\n

        const<\/span> changed =<\/span> await<\/span> atomic<\/span>(<\/span>db,<\/span> [<\/span>…<\/span>]<\/span>)<\/span>;<\/span><\/p>\n

        \u800c\u8fd9\u4e2a await \u5728\u672c\u5730\u8def\u5f84\u4e0a\u5b9e\u9645\u4e0a\u6ca1\u6709\u8ba9\u51fa\u2014\u2014\u56e0\u4e3a Promise \u5df2\u7ecf resolve \u4e86\u3002<\/p>\n

        \u6240\u4ee5\u8fd9\u6bb5\u4ee3\u7801\u5728\u672c\u5730\u548c\u7ebf\u4e0a\u7684\u884c\u4e3a\u662f"\u770b\u8d77\u6765\u4e00\u81f4"\u7684：\u8c03\u7528\u65b9\u90fd await，\u90fd\u62ff\u5230 changes[]\u3002<\/p>\n

        \u800c\u8fd9\u6b63\u662f\u5b83\u7684\u8bbe\u8ba1\u76ee\u7684（M1-33 \u8bb2\u8fc7）：\u4e1a\u52a1\u4ee3\u7801\u4e0d\u7528\u5173\u5fc3\u5f53\u524d\u662f\u54ea\u79cd\u8fd0\u884c\u65f6\u3002<\/p>\n

        \u4f46\u8981\u6ce8\u610f\u4e00\u4e2a\u526f\u4f5c\u7528：\u5728\u672c\u5730\u8def\u5f84\u4e0a，\u8fd9\u4e2a await \u8ba9\u51fa\u4e00\u4e2a\u5fae\u4efb\u52a1\u3002\u5982\u679c\u8fd9\u6bb5\u4ee3\u7801\u5728\u4e00\u4e2a\u5faa\u73af\u91cc\u8c03\u4e00\u4e07\u6b21，\u5c31\u6709\u4e00\u4e07\u4e2a\u5fae\u4efb\u52a1\u3002 \u8fd9\u5728\u5b9e\u6d4b\u4e2d\u4e0d\u6784\u6210\u95ee\u9898（\u56e0\u4e3a\u8fd9\u7c7b\u6279\u91cf\u64cd\u4f5c\u672c\u8eab\u5c31\u5f88\u91cd），\u4f46\u5b83\u8bf4\u660e"\u52a0\u4e86 async \u4e0d\u7b49\u4e8e\u96f6\u6210\u672c"\u3002<\/p>\n

        \u66f4\u4e00\u822c\u7684\u6559\u8bad\u662f：\u628a\u540c\u6b65 API \u58f0\u660e\u6210 async，\u8c03\u7528\u65b9\u5c31\u4f1a\u88ab\u8feb await\u3002 \u800c await \u4e00\u4e2a\u5df2 resolve \u7684 Promise \u4f1a\u8ba9\u51fa\u5230\u5fae\u4efb\u52a1\u961f\u5217，\u6240\u4ee5\u5728\u70ed\u8def\u5f84\u4e0a\u8fd9\u662f\u6709\u6210\u672c\u7684\u3002<\/p>\n

        \u6b63\u786e\u505a\u6cd5\u662f\u5206\u6210\u4e24\u4e2a\u51fd\u6570\u2014\u2014\u540c\u6b65\u7248\u548c\u5f02\u6b65\u7248，\u8ba9\u8c03\u7528\u65b9\u81ea\u5df1\u9009\u3002\u8fd9\u4e2a\u9879\u76ee\u6ca1\u505a，\u662f\u56e0\u4e3a\u8fd9\u4e2a\u8c03\u7528\u70b9\u4e0d\u5728\u70ed\u8def\u5f84\u4e0a\u3002\u4f46\u5b83\u662f\u4e00\u4e2a\u771f\u5b9e\u7684\u53d6\u820d，\u4e0d\u662f\u65e0\u6210\u672c\u7684\u4f18\u96c5\u3002<\/p>\n

        \u9519\u8bef\u5904\u7406\u5c5e\u4e8e\u5f02\u6b65\u6d41\u7a0b\u7684\u4e00\u90e8\u5206<\/h3>\n

        \u6700\u540e\u8bb2\u8fd9\u5757，\u56e0\u4e3a\u5b83\u548c\u540c\u6b65\u4ee3\u7801\u7684\u4e60\u60ef\u4e0d\u540c\u3002<\/p>\n

        \u540c\u6b65\u4ee3\u7801：<\/p>\n

        const<\/span> user =<\/span> getUser<\/span>(<\/span>id)<\/span>;<\/span> \/\/ \u629b\u9519\u5c31\u629b\u9519<\/span>
        \nuse<\/span>(<\/span>user)<\/span>;<\/span><\/p>\n

        \u800c\u5f02\u6b65\u4ee3\u7801\u91cc，throw \u53d8\u6210"reject \u4e00\u4e2a Promise"，\u800c\u6ca1\u4eba await \u7684\u8bdd，\u5b83\u5c31\u53d8\u6210\u4e00\u4e2a unhandled rejection\u3002<\/p>\n

        \u8fd9\u4e2a\u9879\u76ee\u91cc\u6709\u4e2a\u771f\u5b9e\u7684\u4f8b\u5b50：<\/p>\n

        unawaited<\/span>(<\/span>_fetch<\/span>(<\/span>key,<\/span> policy,<\/span> fetch,<\/span> tags,<\/span> forbidden)<\/span>
        \n .<\/span>catchError<\/span>(<\/span>(<\/span>Object _)<\/span> =><\/span> null<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

        unawaited() + .catchError() \u2014\u2014\u4e24\u4e2a\u90fd\u662f\u523b\u610f\u7684\u3002<\/p>\n

          \n
        • unawaited()：\u544a\u8bc9 linter \u201c\u6211\u77e5\u9053\u6211\u6ca1 await，\u8fd9\u662f\u6545\u610f\u7684\u201d<\/li>\n
        • .catchError()：\u541e\u6389\u540e\u53f0\u4efb\u52a1\u7684\u9519\u8bef<\/li>\n<\/ul>\n

          \u800c\u8fd9\u4e24\u8005\u7f3a\u4e00\u4e0d\u53ef：\u53ea\u5199 unawaited \u4f1a\u4ea7\u751f unhandled rejection（Node \u4f1a\u6253\u5370\u8b66\u544a，\u67d0\u4e9b\u914d\u7f6e\u4e0b\u4f1a\u76f4\u63a5\u5d29\u6e83）；\u53ea\u5199 catchError \u800c\u4e0d\u7528 unawaited，linter \u4f1a\u62a5"\u672a\u5904\u7406\u7684 Promise"\u3002<\/p>\n

          \u8fd9\u4e2a\u5199\u6cd5\u628a"\u6211\u77e5\u9053\u8fd9\u91cc\u6709\u4e2a Promise，\u6211\u6ca1\u7b49\u5b83"\u8fd9\u4ef6\u4e8b\u663e\u5f0f\u5316\u4e86\u2014\u2014\u800c\u4e0d\u662f\u8ba9\u5b83\u770b\u8d77\u6765\u50cf\u5fd8\u4e86 await\u3002<\/p>\n

          \u800c\u771f\u6b63\u9700\u8981 await \u7684\u5730\u65b9，\u9519\u8bef\u5c31\u6b63\u5e38\u5f80\u4e0a\u629b，\u7531\u9876\u5c42\u7684\u9519\u8bef\u5904\u7406\u6536\u53e3：<\/p>\n

          export<\/span> const<\/span> errorHandler:<\/span> ErrorHandler<\/span> =<\/span> (<\/span>err,<\/span> _c)<\/span> =><\/span> {<\/span>
          \n if<\/span> (<\/span>err instanceof<\/span> AppError<\/span>)<\/span> {<\/span>
          \n return<\/span> failResponse<\/span>(<\/span>err.<\/span>code,<\/span> err.<\/span>httpStatus,<\/span> err.<\/span>details)<\/span>;<\/span>
          \n }<\/span>
          \n \/\/ \u515c\u5e95：\u672a\u77e5\u5f02\u5e38\u4e0d\u5e94\u5411\u5ba2\u6237\u7aef\u6cc4\u9732\u5806\u6808<\/span>
          \n console<\/span>.<\/span>error<\/span>(<\/span>'[unhandled]'<\/span>,<\/span> err)<\/span>;<\/span>
          \n return<\/span> failResponse<\/span>(<\/span>ErrCode.<\/span>INTERNAL<\/span>,<\/span> 500<\/span>)<\/span>;<\/span>
          \n}<\/span>;<\/span><\/p>\n

          \u6ce8\u610f\u90a3\u4e2a [unhandled] \u524d\u7f00\u2014\u2014\u5b83\u548c\u90a3\u4e9b\u88ab .catchError \u541e\u6389\u7684\u9519\u8bef\u5f62\u6210\u5bf9\u7167\u3002\u80fd\u5230\u8fd9\u91cc\u7684\u90fd\u662f"\u6ca1\u4eba\u5904\u7406"\u7684\u95ee\u9898，\u6240\u4ee5\u8981\u6253\u65e5\u5fd7\u3002<\/p>\n

          \u4e00\u6761\u6211\u4e00\u5f00\u59cb\u60f3\u7701\u6389\u7684\u4e8b<\/h3>\n

          \u90a3\u4e2a"\u8bb0\u8eab\u4efd\u3001\u56de\u6765\u6838\u5bf9"\u7684\u6a21\u5f0f，\u6211\u6700\u521d\u7684\u5b9e\u73b0\u662f"\u53ea\u68c0\u67e5 mounted"\u3002<\/p>\n

          \u7406\u7531\u662f"Flutter \u91cc Widget \u9500\u6bc1\u4e86\u5c31\u4e0d\u8be5 setState，\u591f\u4e86"\u3002<\/p>\n

          \u7ed3\u679c\u662f\u4e00\u4e2a\u771f\u5b9e\u7684\u95ee\u9898：\u7528\u6237\u5728\u641c\u7d22\u9875\u5feb\u901f\u8f93\u5165，\u4e24\u6b21\u8bf7\u6c42\u51e0\u4e4e\u540c\u65f6\u53d1\u51fa，\u7b2c\u4e00\u4e2a\u8bf7\u6c42\u5148\u56de\u6765\u3002<\/p>\n

          \u90a3\u65f6\u5019 mounted \u662f true（\u9875\u9762\u8fd8\u5728），\u6240\u4ee5\u7b2c\u4e00\u4e2a\u7ed3\u679c\u76f4\u63a5\u6e32\u67d3\u4e86\u3002\u7136\u540e\u7b2c\u4e8c\u4e2a\u7ed3\u679c\u56de\u6765，\u8986\u76d6\u6389\u5b83\u3002<\/p>\n

          \u7528\u6237\u770b\u5230\u7684\u662f：\u8f93\u5165"a"，\u770b\u5230\u7684\u7ed3\u679c\u5bf9\u5e94"ab"\u3002<\/p>\n

          \u800c\u8fd9\u4e2a bug \u6781\u5176\u96be\u53d1\u73b0，\u56e0\u4e3a：\u5355\u6b21\u641c\u7d22\u5b8c\u5168\u6b63\u5e38\u3001\u7ed3\u679c\u901a\u5e38"\u5dee\u4e0d\u591a\u5bf9"\u3001\u800c\u4e24\u6b21\u8f93\u5165\u4e4b\u95f4\u7684\u95f4\u9694\u901a\u5e38\u53ea\u6709\u51e0\u767e\u6beb\u79d2\u3002<\/p>\n

          \u52a0\u4e0a serial \u4e4b\u540e，\u8fd9\u7c7b\u95ee\u9898\u624d\u6d88\u5931\u3002 \u800c\u5b83\u7684\u6210\u672c\u53ea\u6709\u4e24\u884c\u3002<\/p>\n

          \u800c\u8fd9\u4ef6\u4e8b\u548c Node \u90a3\u8fb9\u7684\u6559\u8bad\u662f\u540c\u4e00\u4e2a：\u5355\u7ebf\u7a0b\u4e0d\u4ee3\u8868\u903b\u8f91\u4e0d\u4f1a\u4ea4\u9519\u2014\u2014await \u5904\u5c31\u662f\u4ea4\u9519\u7684\u8fb9\u754c\u3002<\/p>\n

          \u987a\u5e26\u8bf4 M4-10 \u90a3\u4e2a loadKey \u673a\u5236（\u9632"\u540c\u4e00\u4e2a Widget \u88ab\u590d\u7528\u4f46\u53c2\u6570\u53d8\u4e86"）\u4e5f\u662f\u540c\u4e00\u65cf\u7684\u95ee\u9898\u3002\u5b83\u7684\u8868\u73b0\u66f4\u9690\u853d：\u6587\u7ae0\u9875\u663e\u793a\u7684\u662f A \u4f5c\u8005\u7684\u6587\u7ae0，\u6807\u9898\u5374\u662f B \u7684\u2014\u2014\u56e0\u4e3a\u7ec4\u4ef6\u590d\u7528\u4e86，\u800c\u57fa\u7ebf\u503c\u6ca1\u91cd\u7f6e\u3002<\/p>\n

          \u4e09\u4e2a\u95ee\u9898\u4e09\u4e2a\u73b0\u8c61，\u4e00\u4e2a\u6839\u56e0：\u5f02\u6b65\u7ed3\u679c\u88ab\u7528\u5728\u4e86\u5b83\u4e0d\u518d\u6210\u7acb\u7684\u4e0a\u4e0b\u6587\u91cc\u3002<\/p>\n

          \u5c0f\u7ed3<\/h3>\n

          Node \u8fd0\u884c\u65f6\u5728\u8fd9\u4e2a\u9879\u76ee\u91cc\u6c89\u6dc0\u4e0b\u6765\u7684\u5224\u65ad：<\/p>\n

        • await \u4e0d\u53ea\u662f"\u7b49"，\u5b83\u662f"\u4e16\u754c\u53ef\u80fd\u53d8\u4e86"\u7684\u8fb9\u754c\u3002 \u6bcf\u6b21 await \u4e4b\u540e\u90fd\u8981\u91cd\u65b0\u786e\u8ba4\u524d\u7f6e\u5047\u8bbe\u3002<\/li>\n
        • \u5355\u7ebf\u7a0b\u4e0d\u7b49\u4e8e\u987a\u5e8f\u6267\u884c\u2014\u2014await \u4f1a\u8ba9\u51fa\u63a7\u5236\u6743，\u8ba9\u51fa\u671f\u95f4\u4f1a\u5904\u7406\u522b\u7684\u4e8b\u3002<\/li>\n
        • \u5e76\u53d1 I\/O \u2260 \u5e76\u884c\u8ba1\u7b97\u3002async \u89e3\u51b3\u7b49\u5f85，\u4e0d\u89e3\u51b3\u8ba1\u7b97\u3002<\/li>\n
        • \u540c\u6b65 API \u58f0\u660e\u6210 async \u6709\u6210\u672c（\u5f3a\u5236\u8c03\u7528\u65b9 await \u591a\u4e00\u4e2a\u5fae\u4efb\u52a1），\u5c24\u5176\u5728\u70ed\u8def\u5f84\u4e0a\u3002<\/li>\n
        • \u540e\u53f0\u4efb\u52a1\u8981\u663e\u5f0f\u6807\u6ce8 unawaited + catchError，\u5426\u5219\u8981\u4e48\u5d29\u6e83\u8981\u4e48\u88ab linter \u5ffd\u7565\u3002<\/li>\n
        • \u91cd\u590d\u6267\u884c\u662f\u5426\u5b89\u5168，\u51b3\u5b9a\u4e86\u5e76\u53d1\u5904\u7406\u65b9\u5f0f：\u5b89\u5168\u7684\u8bb0\u8eab\u4efd，\u4e0d\u5b89\u5168\u7684\u5fc5\u987b\u5171\u4eab（\u5355\u98de）\u3002<\/li>\n

          \u800c\u7b2c 1 \u6761\u662f\u8fd9\u4e2a\u4e13\u680f\u8d2f\u7a7f\u591a\u4e2a\u7cfb\u5217\u7684\u6a21\u5f0f\u2014\u2014M4-09 \u7684 epoch\u3001M4-12 \u7684 serial\u3001M4-10 \u7684 ticket\u3001M4-15 \u7684 url \u6bd4\u8f83，\u56db\u4e2a\u5730\u65b9\u90fd\u662f\u540c\u4e00\u53e5\u8bdd\u7684\u4e0d\u540c\u63aa\u8f9e：<\/p>\n

          \u5f02\u6b65\u7ed3\u679c\u53ea\u5bf9\u53d1\u8d77\u5b83\u7684\u90a3\u4e2a\u4e16\u754c\u6709\u6548\u3002<\/p>\n

          \u800c Flutter \u90a3\u8fb9\u7684 mounted \u68c0\u67e5\u662f Node \u8fd9\u8fb9\u6ca1\u6709\u7684，\u56e0\u4e3a\u6846\u67b6\u4f1a\u9500\u6bc1 Widget，\u800c Node \u7684\u8bf7\u6c42\u6ca1\u6709"\u88ab\u9500\u6bc1"\u8fd9\u4e2a\u6982\u5ff5\u2014\u2014\u5b83\u7684"\u4e0a\u4e0b\u6587\u6d88\u5931"\u8868\u73b0\u4e3a\u7528\u6237\u767b\u51fa，\u800c\u90a3\u8981\u9760 epoch \u8fd9\u6837\u7684\u4e1a\u52a1\u6807\u8bb0\u624d\u80fd\u77e5\u9053\u3002<\/p>\n

          \u8fd9\u8bf4\u660e\u540c\u4e00\u4e2a\u6a21\u5f0f\u5728\u4e0d\u540c\u73af\u5883\u91cc\u9700\u8981\u4e0d\u540c\u7684"\u8eab\u4efd\u6807\u8bb0"，\u800c\u6807\u8bb0\u7684\u6765\u6e90\u662f\u73af\u5883\u7279\u6709\u7684\u3002<\/p>\n

          \u4e0b\u4e00\u7bc7\u8bb2\u670d\u52a1\u7aef\u7684\u5fc3\u667a\u6a21\u578b\u2014\u2014\u628a\u4e00\u4e2a\u8bf7\u6c42\u4ece\u6d4f\u89c8\u5668\u5230\u6570\u636e\u5e93\u7684\u5b8c\u6574\u94fe\u8def\u753b\u51fa\u6765，\u6807\u51fa\u6bcf\u4e00\u5c42\u53ef\u80fd\u5931\u8d25\u7684\u5730\u65b9\u3002<\/p>\n

          \u5ef6\u4f38\u9605\u8bfb<\/h3>\n
            \n
          • \u540e\u7aef\u5de5\u7a0b\u4ece\u96f6\u642d\u5efa：TypeScript\u3001\u76ee\u5f55\u4e0e\u70ed\u66f4\u65b0<\/li>\n
          • \u70b9\u8d5e\u7cfb\u7edf：\u5e42\u7b49\u70b9\u8d5e\u4e0e\u8ba1\u6570\u539f\u5b50\u589e\u51cf<\/li>\n
          • \u7ed3\u6784\u5316\u65e5\u5fd7\u4e0e\u8bf7\u6c42\u94fe\u8def\u8ffd\u8e2a<\/li>\n<\/ul>\n
            \n

            \u5982\u679c\u8fd9\u7bc7\u6587\u7ae0\u5bf9\u4f60\u6709\u5e2e\u52a9，\u6b22\u8fce\u8ba2\u9605\u6211\u7684 CSDN \u4e13\u680f \u300c\u6210\u4e3a\u5168\u6808\u300d：<\/p>\n

            🔗 \u4e13\u680f\u5730\u5740：https:\/\/blog.csdn.net\/fungleo\/category_13204651.html<\/p>\n

            📦 \u672c\u7cfb\u5217\u914d\u5957\u4ee3\u7801\u4ed3\u5e93：https:\/\/github.com\/fengcms\/become-a-full-stack-developer<\/p>\n

            \"\u6210\u4e3a\u5168\u6808\u4e13\u680f\u8ba2\u9605\"<\/p>\n","protected":false},"excerpt":{"rendered":"

            \u6210\u4e3a\u5168\u6808\u00b7\u57fa\u7840\u8865\u5145\u00b7Node.js \u8fd0\u884c\u65f6：\u4e8b\u4ef6\u5faa\u73af\u4e0e\u5f02\u6b65
            \n\u8fd9\u4e2a\u9879\u76ee\u91cc\u6709\u4e00\u6bb5\u4ee3\u7801，\u5b83\u7684\u5916\u5f62\u662f async，\u4f46\u5185\u90e8\u8c03\u7528\u7684\u662f\u4e00\u4e2a\u540c\u6b65\u51fd\u6570：
            \n\/** \u540c\u4e00\u6279 SQL \u5728 SQLite \u4e8b\u52a1\u6216 D1 batch \u4e2d\u6267\u884c；\u5f02\u5e38\u6574\u4f53\u56de\u6eda\u3002 *\/
            \nexport async function atomic(db: Db, statements: Statement[]): Promise {cons<\/p>\n","protected":false},"author":2,"featured_media":123621,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[14172,11686,187,186,3514],"topic":[],"class_list":["post-123625","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-14172","tag-11686","tag-javascript","tag-node-js","tag-3514"],"yoast_head":"\n\u6210\u4e3a\u5168\u6808\u00b7\u57fa\u7840\u8865\u5145\u00b7Node.js \u8fd0\u884c\u65f6\uff1a\u4e8b\u4ef6\u5faa\u73af\u4e0e\u5f02\u6b65 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/123625.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6210\u4e3a\u5168\u6808\u00b7\u57fa\u7840\u8865\u5145\u00b7Node.js \u8fd0\u884c\u65f6\uff1a\u4e8b\u4ef6\u5faa\u73af\u4e0e\u5f02\u6b65 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6210\u4e3a\u5168\u6808\u00b7\u57fa\u7840\u8865\u5145\u00b7Node.js \u8fd0\u884c\u65f6：\u4e8b\u4ef6\u5faa\u73af\u4e0e\u5f02\u6b65 \u8fd9\u4e2a\u9879\u76ee\u91cc\u6709\u4e00\u6bb5\u4ee3\u7801，\u5b83\u7684\u5916\u5f62\u662f async，\u4f46\u5185\u90e8\u8c03\u7528\u7684\u662f\u4e00\u4e2a\u540c\u6b65\u51fd\u6570： \/** \u540c\u4e00\u6279 SQL \u5728 SQLite \u4e8b\u52a1\u6216 D1 batch \u4e2d\u6267\u884c；\u5f02\u5e38\u6574\u4f53\u56de\u6eda\u3002 *\/ export async function atomic(db: Db, statements: Statement[]): Promise {cons\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/123625.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-11-07T14:01:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261107140107-6aef2f23063da.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/123625.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/123625.html\",\"name\":\"\u6210\u4e3a\u5168\u6808\u00b7\u57fa\u7840\u8865\u5145\u00b7Node.js \u8fd0\u884c\u65f6\uff1a\u4e8b\u4ef6\u5faa\u73af\u4e0e\u5f02\u6b65 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-11-07T14:01:12+00:00\",\"dateModified\":\"2026-11-07T14:01:12+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/123625.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/123625.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/123625.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u6210\u4e3a\u5168\u6808\u00b7\u57fa\u7840\u8865\u5145\u00b7Node.js \u8fd0\u884c\u65f6\uff1a\u4e8b\u4ef6\u5faa\u73af\u4e0e\u5f02\u6b65\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u6210\u4e3a\u5168\u6808\u00b7\u57fa\u7840\u8865\u5145\u00b7Node.js \u8fd0\u884c\u65f6\uff1a\u4e8b\u4ef6\u5faa\u73af\u4e0e\u5f02\u6b65 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/123625.html","og_locale":"zh_CN","og_type":"article","og_title":"\u6210\u4e3a\u5168\u6808\u00b7\u57fa\u7840\u8865\u5145\u00b7Node.js \u8fd0\u884c\u65f6\uff1a\u4e8b\u4ef6\u5faa\u73af\u4e0e\u5f02\u6b65 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"\u6210\u4e3a\u5168\u6808\u00b7\u57fa\u7840\u8865\u5145\u00b7Node.js \u8fd0\u884c\u65f6：\u4e8b\u4ef6\u5faa\u73af\u4e0e\u5f02\u6b65 \u8fd9\u4e2a\u9879\u76ee\u91cc\u6709\u4e00\u6bb5\u4ee3\u7801，\u5b83\u7684\u5916\u5f62\u662f async，\u4f46\u5185\u90e8\u8c03\u7528\u7684\u662f\u4e00\u4e2a\u540c\u6b65\u51fd\u6570： \/** \u540c\u4e00\u6279 SQL \u5728 SQLite \u4e8b\u52a1\u6216 D1 batch \u4e2d\u6267\u884c；\u5f02\u5e38\u6574\u4f53\u56de\u6eda\u3002 *\/ export async function atomic(db: Db, statements: Statement[]): Promise {cons","og_url":"https:\/\/www.wsisp.com\/helps\/123625.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-11-07T14:01:12+00:00","og_image":[{"url":"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261107140107-6aef2f23063da.png"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"4 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/123625.html","url":"https:\/\/www.wsisp.com\/helps\/123625.html","name":"\u6210\u4e3a\u5168\u6808\u00b7\u57fa\u7840\u8865\u5145\u00b7Node.js \u8fd0\u884c\u65f6\uff1a\u4e8b\u4ef6\u5faa\u73af\u4e0e\u5f02\u6b65 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-11-07T14:01:12+00:00","dateModified":"2026-11-07T14:01:12+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/123625.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/123625.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/123625.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"\u6210\u4e3a\u5168\u6808\u00b7\u57fa\u7840\u8865\u5145\u00b7Node.js \u8fd0\u884c\u65f6\uff1a\u4e8b\u4ef6\u5faa\u73af\u4e0e\u5f02\u6b65"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/123625","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=123625"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/123625\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media\/123621"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=123625"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=123625"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=123625"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=123625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}