await<\/code>\u5173\u952e\u5b57\u7b49\u5f85\u4e00\u4e2a\u5f02\u6b65\u64cd\u4f5c\u5b8c\u6210\u3002\u6bd4\u8d77\u4f20\u7edf\u7684\u57fa\u4e8e\u56de\u8c03\u7684\u65b9\u6cd5\u6216\u8fde\u7eed\u7684Promise.then()\u8c03\u7528\uff0casync\/await\u8ba9\u903b\u8f91\u8868\u8fbe\u66f4\u4e3a\u76f4\u89c2\u3002<\/p>\n<\/p>\n\u5f15\u5165async\/await\u4e4b\u524d\u7684\u5904\u7406\u65b9\u5f0f<\/h4>\n<\/p>\n
\u5728async\/await\u51fa\u73b0\u4e4b\u524d\uff0cNode.js\u4e2d\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u7684\u4e3b\u8981\u65b9\u6cd5\u5305\u62ec\u56de\u8c03\u51fd\u6570\u548cPromise\u3002\u56de\u8c03\u51fd\u6570\u867d\u7136\u5728\u65e9\u671fNode.js\u4e2d\u88ab\u5e7f\u6cdb\u4f7f\u7528\uff0c\u4f46\u5b83\u4eec\u5bb9\u6613\u5bfc\u81f4\u4ee3\u7801\u5c42\u6b21\u4e0d\u65ad\u5d4c\u5957\uff0c\u5f62\u6210\u6240\u8c13\u7684"\u56de\u8c03\u5730\u72f1"\uff0c\u4ece\u800c\u4f7f\u5f97\u4ee3\u7801\u96be\u4ee5\u7406\u89e3\u548c\u7ef4\u62a4\u3002<\/p>\n<\/p>\n
\u4f7f\u7528async\/await\u540e\u7684\u53d8\u5316<\/h4>\n<\/p>\n
\u91c7\u7528async\/await\u540e\uff0c\u4ee3\u7801\u7ed3\u6784\u53d8\u5f97\u66f4\u52a0\u5e73\u6574\u3002\u5f00\u53d1\u8005\u80fd\u591f\u4ee5\u8fd1\u4e4e\u540c\u6b65\u7684\u65b9\u5f0f\u7f16\u5199\u4ee3\u7801\uff0c\u7528await<\/code>\u6682\u505c\u51fd\u6570\u6267\u884c\uff0c\u5f85\u5f02\u6b65\u64cd\u4f5c\u5b8c\u6210\u540e\u7ee7\u7eed\u3002\u8fd9\u4e0d\u4ec5\u4f7f\u5f97\u4ee3\u7801\u903b\u8f91\u66f4\u6e05\u6670\uff0c\u800c\u4e14\u63d0\u9ad8\u4e86\u5f00\u53d1\u6548\u7387\u3002<\/p>\n<\/p>\n\u4e8c\u3001\u4f18\u5316\u9519\u8bef\u5904\u7406<\/h3>\n<\/p>\n
Async\/await\u4e3a\u9519\u8bef\u5904\u7406\u63d0\u4f9b\u4e86\u65b0\u7684\u601d\u8def\u3002\u5229\u7528async\u51fd\u6570\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5728\u4e00\u4e2a\u9ad8\u5ea6\u540c\u6b65\u7684\u4e0a\u4e0b\u6587\u4e2d\u4f7f\u7528try\/catch\u8bed\u53e5\u6355\u83b7\u5f02\u6b65\u9519\u8bef\uff0c\u8fd9\u4e0e\u5728\u4f20\u7edf\u7684Promise\u94fe\u4e2d\u6dfb\u52a0.catch()<\/code>\u65b9\u6cd5\u6709\u7740\u672c\u8d28\u7684\u4e0d\u540c\u3002<\/p>\n<\/p>\n\u4f20\u7edf\u9519\u8bef\u5904\u7406\u7684\u5c40\u9650\u6027<\/h4>\n<\/p>\n
\u5728async\/await\u5f15\u5165\u4e4b\u524d\uff0c\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u4e2d\u7684\u9519\u8bef\u901a\u5e38\u9700\u8981\u5728\u6bcf\u4e2aPromise\u540e\u9762\u9644\u52a0.catch()\u65b9\u6cd5\uff0c\u6216\u5728\u56de\u8c03\u51fd\u6570\u4e2d\u68c0\u67e5\u9519\u8bef\u53c2\u6570\u3002\u8fd9\u79cd\u65b9\u5f0f\u4e0d\u4ec5\u4ee3\u7801\u91cf\u5927\uff0c\u800c\u4e14\u5728\u591a\u4e2a\u5f02\u6b65\u8c03\u7528\u94fe\u4e2d\u8ffd\u8e2a\u9519\u8bef\u5341\u5206\u9ebb\u70e6\u3002<\/p>\n<\/p>\n
async\/await\u4e2d\u7684\u9519\u8bef\u5904\u7406<\/h4>\n<\/p>\n
\u901a\u8fc7\u4f7f\u7528async\/await\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5c06\u5f02\u6b65\u64cd\u4f5c\u5305\u88f9\u5728try\/catch\u5757\u4e2d\uff0c\u4ece\u800c\u4ee5\u4e00\u79cd\u76f4\u89c2\u548c\u7edf\u4e00\u7684\u65b9\u5f0f\u5904\u7406\u9519\u8bef\u3002\u8fd9\u5927\u5927\u51cf\u5c11\u4e86\u4ee3\u7801\u7684\u590d\u6742\u6027\uff0c\u63d0\u9ad8\u4e86\u9519\u8bef\u5904\u7406\u7684\u6548\u7387\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u63d0\u5347\u4ee3\u7801\u53ef\u8bfb\u6027<\/h3>\n<\/p>\n
\u4f7f\u7528async\/await\uff0c\u5f02\u6b65\u64cd\u4f5c\u7684\u4ee3\u7801\u53d8\u5f97\u66f4\u50cf\u662f\u540c\u6b65\u4ee3\u7801\uff0c\u8fd9\u4f7f\u5f97\u6574\u4f53\u7684\u903b\u8f91\u66f4\u5bb9\u6613\u7406\u89e3\u3002\u5f00\u53d1\u8005\u4e0d\u9700\u8981\u6df1\u5165\u4e86\u89e3\u5e95\u5c42\u7684\u5f02\u6b65\u6267\u884c\u673a\u5236\uff0c\u4e5f\u53ef\u4ee5\u7f16\u5199\u51fa\u6e05\u6670\u3001\u7b80\u6d01\u7684\u4ee3\u7801\u3002<\/p>\n<\/p>\n
\u4ee3\u7801\u53ef\u8bfb\u6027\u7684\u91cd\u8981\u6027<\/h4>\n<\/p>\n
\u53ef\u8bfb\u6027\u5bf9\u4e8e\u7ef4\u62a4\u65e2\u6709\u4ee3\u7801\u3001\u7406\u89e3\u65b0\u9879\u76ee\u7684\u6838\u5fc3\u903b\u8f91\u3001\u4ee5\u53ca\u56e2\u961f\u534f\u4f5c\u90fd\u81f3\u5173\u91cd\u8981\u3002\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u76f4\u63a5\u5f71\u54cd\u5230\u9879\u76ee\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u5f00\u53d1\u6548\u7387\u3002<\/p>\n<\/p>\n
async\/await\u5982\u4f55\u63d0\u5347\u53ef\u8bfb\u6027<\/h4>\n<\/p>\n
\u901a\u8fc7\u51cf\u5c11\u56de\u8c03\u51fd\u6570\u7684\u4f7f\u7528\uff0c\u4ee5\u53ca\u907f\u514d\u8fc7\u591a\u7684Promise\u94fe\u6761\uff0casync\/await\u5e2e\u52a9\u5f00\u53d1\u8005\u4ee5\u4e00\u79cd\u66f4\u52a0\u7ebf\u6027\u548c\u58f0\u660e\u5f0f\u7684\u65b9\u5f0f\u8868\u8fbe\u5f02\u6b65\u903b\u8f91\uff0c\u4ece\u800c\u63d0\u5347\u4e86\u4ee3\u7801\u7684\u6574\u4f53\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n
\u56db\u3001\u589e\u5f3a\u4ee3\u7801\u6027\u80fd<\/h3>\n<\/p>\n
\u867d\u7136async\/await\u7684\u4e3b\u8981\u4f18\u52bf\u5e76\u4e0d\u5728\u4e8e\u6027\u80fd\u63d0\u5347\uff0c\u4f46\u6b63\u786e\u4f7f\u7528\u8fd9\u4e24\u4e2a\u5173\u952e\u5b57\uff0c\u53ef\u4ee5\u907f\u514d\u4e00\u4e9b\u4e0d\u5fc5\u8981\u7684\u5e76\u884c\u64cd\u4f5c\uff0c\u4ece\u800c\u95f4\u63a5\u63d0\u5347\u5e94\u7528\u7684\u6027\u80fd\u3002<\/p>\n<\/p>\n
\u7406\u89e3\u5f02\u6b65\u4ee3\u7801\u7684\u6027\u80fd<\/h4>\n<\/p>\n
\u5728Node.js\u4e2d\uff0c\u5f02\u6b65\u4ee3\u7801\u7684\u6027\u80fd\u4e3b\u8981\u53d6\u51b3\u4e8eI\/O\u64cd\u4f5c\uff0c\u5982\u6570\u636e\u5e93\u67e5\u8be2\u3001\u6587\u4ef6\u8bfb\u5199\u7b49\u3002\u4f7f\u7528async\/await\u53ef\u4ee5\u66f4\u597d\u5730\u63a7\u5236\u8fd9\u4e9b\u64cd\u4f5c\u7684\u5e76\u53d1\u548c\u987a\u5e8f\uff0c\u4ece\u800c\u4f18\u5316\u6027\u80fd\u3002<\/p>\n<\/p>\n
async\/await\u4e0e\u6027\u80fd\u4f18\u5316<\/h4>\n<\/p>\n
\u901a\u8fc7\u4f7f\u7528async\/await\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u907f\u514d\u65e0\u5fc5\u8981\u7684\u7b49\u5f85\u548c\u963b\u585e\uff0c\u6bd4\u5982\u901a\u8fc7\u5408\u7406\u5b89\u6392\u5f02\u6b65\u4efb\u52a1\u7684\u6267\u884c\u987a\u5e8f\uff0c\u51cf\u5c11\u5bf9\u7cfb\u7edf\u8d44\u6e90\u7684\u65e0\u6548\u5360\u7528\uff0c\u8fd9\u5728\u590d\u6742\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n<\/p>\n
\u603b\u7ed3\u6765\u8bf4\uff0casync\u5173\u952e\u5b57\u5728Node.js\u5f00\u53d1\u4e2d\u7684\u4f5c\u7528\u4f53\u73b0\u5728\u7b80\u5316\u5f02\u6b65\u7f16\u7a0b\u98ce\u683c\u3001\u4f18\u5316\u9519\u8bef\u5904\u7406\u903b\u8f91\u3001\u63d0\u5347\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3001\u4ee5\u53ca\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u7684\u6027\u80fd\u63d0\u5347\u4e0a\u3002\u8fd9\u4e9b\u4f18\u52bf\u4f7f\u5f97async\/await\u6210\u4e3a\u73b0\u4ee3Node.js\u5f02\u6b65\u7f16\u7a0b\u7684\u9996\u9009\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n1. async \u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f<\/strong>
\n\u5728Node\u5f00\u53d1\u4e2d\uff0casync\uff08\u5f02\u6b65\uff09\u662f\u4e00\u79cd\u91cd\u8981\u7684\u7f16\u7a0b\u6a21\u5f0f\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u4ee5\u975e\u963b\u585e\u65b9\u5f0f\u5904\u7406\u5e76\u53d1\u4efb\u52a1\u3002\u901a\u8fc7\u4f7f\u7528async\u6a21\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u6267\u884c\u67d0\u4e2a\u4efb\u52a1\u65f6\uff0c\u540c\u65f6\u8fdb\u884c\u5176\u4ed6\u4efb\u52a1\u7684\u5904\u7406\uff0c\u4ece\u800c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6548\u7387\u548c\u54cd\u5e94\u6027\u3002<\/p>\n2. async \u5982\u4f55\u89e3\u51b3\u56de\u8c03\u5730\u72f1\u95ee\u9898\uff1f<\/strong>
\n\u5728Node\u5f00\u53d1\u4e2d\uff0c\u7ecf\u5e38\u4f1a\u9047\u5230\u56de\u8c03\u5730\u72f1\u7684\u95ee\u9898\uff0c\u5373\u591a\u5c42\u5d4c\u5957\u7684\u56de\u8c03\u51fd\u6570\u4f7f\u5f97\u4ee3\u7801\u96be\u4ee5\u7ef4\u62a4\u548c\u9605\u8bfb\u3002\u4f7f\u7528async\u6a21\u5757\u53ef\u4ee5\u6709\u6548\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\u901a\u8fc7\u4f7f\u7528async\/await\u5173\u952e\u5b57\uff0c\u53ef\u4ee5\u5c06\u5f02\u6b65\u4ee3\u7801\u4ee5\u540c\u6b65\u7684\u65b9\u5f0f\u4e66\u5199\uff0c\u4f7f\u5f97\u4ee3\u7801\u66f4\u52a0\u6e05\u6670\u6613\u8bfb\u3002<\/p>\n3. async \u5982\u4f55\u5904\u7406\u9519\u8bef\uff1f<\/strong>
\n\u5728Node\u5f00\u53d1\u4e2d\uff0c\u9519\u8bef\u5904\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u90e8\u5206\u3002\u4f7f\u7528async\u6a21\u5757\u53ef\u4ee5\u66f4\u8f7b\u677e\u5730\u5904\u7406\u9519\u8bef\u3002\u901a\u8fc7\u5728\u5f02\u6b65\u51fd\u6570\u4e2d\u4f7f\u7528try-catch\u8bed\u53e5\uff0c\u53ef\u4ee5\u6355\u83b7\u5e76\u5904\u7406\u53ef\u80fd\u53d1\u751f\u7684\u9519\u8bef\u3002\u540c\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528Promise\u5bf9\u8c61\u7684catch\u65b9\u6cd5\u6216\u8005try-catch\u8bed\u53e5\u6765\u6355\u83b7\u548c\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u4e2d\u7684\u9519\u8bef\uff0c\u4fdd\u8bc1\u7a0b\u5e8f\u7684\u5065\u58ee\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Node.js\u5f00\u53d1\u4e2d\uff0casync\u5173\u952e\u5b57\u4e3b\u8981\u88ab\u7528\u4e8e\u7b80\u5316\u5f02\u6b65\u64cd\u4f5c\u7684\u5199\u6cd5\uff0c\u4f7f\u5f97\u57fa\u4e8e\u5f02\u6b65\u7684\u4ee3\u7801\u6613\u8bfb\u548c\u6613\u7ef4\u62a4\u3002\u5b83\u4e3a\u6211\u4eec […]","protected":false},"author":3,"featured_media":165049,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/165042"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=165042"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/165042\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/165049"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=165042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=165042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=165042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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<\/p>\n