{"id":3975,"date":"2014-02-19T17:03:58","date_gmt":"2014-02-19T09:03:58","guid":{"rendered":"http:\/\/www.zhangxinxu.com\/wordpress\/?p=3975"},"modified":"2018-07-24T11:06:12","modified_gmt":"2018-07-24T03:06:12","slug":"es6-javascript-promise-%e6%84%9f%e6%80%a7%e8%ae%a4%e7%9f%a5","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2014\/02\/es6-javascript-promise-%e6%84%9f%e6%80%a7%e8%ae%a4%e7%9f%a5\/","title":{"rendered":"ES6 JavaScript Promise\u7684\u611f\u6027\u8ba4\u77e5"},"content":{"rendered":"<p>by <a href=\"http:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"http:\/\/www.zhangxinxu.com\/\">http:\/\/www.zhangxinxu.com<\/a><br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=3975\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=3975<\/a><\/p>\n<h3>\u4e00\u3001Promise\u662f\u4e00\u79cd\u5f62\u5f0f<\/h3>\n<p>\u6625\u8282\u5047\u671f\u770b\u4e86\u4e00\u90e8\u7535\u5f71\uff0c\u300a\u8d85\u4eba-\u94a2\u94c1\u4e4b\u8eaf\u300b\uff0c\u6211\u5ab3\u5987\u6ca1\u7761\u7740\uff0c\u8bf4\u660e\u8fd9\u90e8\u7535\u5f71\u8fd8\u4e0d\u9519\u3002\u5176\u4e2d\u6709\u53e5\u53f0\u8bcd\u5370\u8c61\u6df1\u523b\uff1a\u201c\u5bf9\u4e8e\u6ca1\u6709\u89c1\u8fc7\u7684\u4e1c\u897f\uff0c\u4eba\u4f1a\u6392\u65a5\uff0c\u56e0\u4e3a\u5185\u5fc3\u4f1a\u6050\u60e7\u201d\u3002<\/p>\n<p>\u4e8e\u662f\uff0c\u5c31\u6709\u8fd9\u6837\u4e00\u4e2a\u95ee\u9898\u51fa\u6765\u4e86\uff0c\u5982\u679c\u8ba9\u4eba\u5feb\u901f\u63a5\u53d7\u4e00\u4e2a\u65b0\u9c9c\u672a\u77e5\u3001\u53ef\u80fd\u4f1a\u6392\u65a5\u3001\u5e26\u6765\u6050\u60e7\u7684\u4e1c\u897f\u3002<\/p>\n<p>\u201c\u4ecb\u7ecd\u5176\u5f3a\u5927\u4ee5\u53ca\u5389\u5bb3\u4e4b\u5904\uff1f\u201d<\/p>\n<p>\u6bd4\u5982\u672c\u6587\u8981\u4ecb\u7ecd\u7684Promise, \u4ecb\u7ecd\u5176\u5982\u4f55\u4f7f\u7528\uff0c\u591a\u4e48\u5f3a\u5927\uff1f<\/p>\n<p>No, No, No, \u8fd9\u4e00\u4e0a\u6765\u5c31\u76f4\u5954\u83ca\u82b1\u7684\u8282\u594f\u663e\u7136\u662f\u4f1a\u5e26\u6765\u75db\u82e6\u7684\u3002<\/p>\n<p>\u597d\u6bd4\u8d85\u4eba\u54e5\u54e5\uff0c\u5982\u679c\u5bf9\u6c11\u4f17\u5927\u8086\u5ba3\u626c\u5176\u591a\u4e48\u5f3a\u5927\u2014\u2014\u63c9\u4e0d\u6241\u3001\u9524\u4e0d\u70c2\uff0c\u4e0a\u5929\u5165\u5730\u662f\u5c0f\u83dc\u3002\u4e0d\u6015\u67aa\u3001\u4e0d\u6015\u5f39\uff0c\u773c\u775b\u956d\u5c04\u72c2\u70b9\u8d5e\uff01<\/p>\n<p>\u6c11\u4f17\u53ea\u4f1a\u5bb3\u6015\uff0c\u6392\u65a5\uff0c\u8ba4\u4e3a\u8fd9\u662f\u4e00\u4e2a\u602a\u7269\u3002\u4e3a\u4f55\uff1f\u56e0\u4e3a\u7f3a\u4e4f\u5b8c\u6574\u7684\u611f\u6027\u8ba4\u8bc6\u3002\u76f8\u6bd4\u5f3a\u5927\u4e0e\u5426\uff0c\u662f\u654c\u662f\u53cb\uff0c\u662f\u597d\u4e8b\u662f\u574f\u624d\u662f\u8ba9\u6c11\u4f17\u63a5\u53d7\u7684\u6700\u5148\u8003\u8651\u7684\uff0c\u6070\u597d\uff0c\u6b64\u65f6\u53d1\u751f\u4e86\u4e00\u8fde\u4e32\u7684\u5b9e\u9645\uff0c\u8d85\u4eba\u54e5\u54e5\u4ee5\u884c\u52a8\u8868\u660e\u4e86\u81ea\u5df1\u662f\u7ad9\u5728\u5730\u7403\u8fd9\u4e00\u8fb9\u7684\u3002<\/p>\n<p>\u4e8e\u662f\uff0c\u7f8e\u5229\u575a\u624d\u4f1a\u5982\u6b64\u8fc5\u901f\u8ba4\u53ef\u8fd9\u4f4d\u8d85\u4eba\u54e5\u54e5\u3002<\/p>\n<p>\u6211\u4eec\u518d\u6765\u770bPromise, \u5bf9\u4e8e\u90e8\u5206\u4eba\u800c\u8a00\uff0c\u63a5\u89e6\u8fc7\u7c7b\u4f3c\u6982\u5ff5\u6216\u8005\u6709\u7c7b\u4f3c\u9700\u6c42\uff0c\u672c\u8eab\u5c31\u6709\u611f\u6027\u8ba4\u8bc6\uff0c\u56e0\u6b64\uff0c\u6b64\u7269\u51fa\u73b0\u7684\u65f6\u5019\uff0c\u597d\u6bd4\u4e45\u65f1\u9022\u7518\u96e8\uff0c\u5e72\u67f4\u9047\u70c8\u706b\uff0c\u7acb\u9a6chigh\u8d77\u554a~<\/p>\n<p>\u4f46\u662f\uff0c\u5927\u90e8\u5206\u7684\u4eba\u662f\u7b2c\u4e00\u6b21\u89e6\u78b0Promise\u7684\u808c\u80a4\u3002\u56e0\u6b64\uff0c\u5728\u6df1\u5165\u4ecb\u7ecd\u4e4b\u524d\uff0c\u611f\u6027\u8ba4\u8bc6\u5c31\u5c24\u4e3a\u91cd\u8981\uff0c\u5426\u5219\uff0c\u4f1a\u5bb3\u6015\uff0c\u6392\u65a5\uff0c\u6254\u5728\u4e00\u8fb9\uff0c\u7b49\u7740\u4ee5\u540e\u5403\u73b0\u6210\u996d\u3002<\/p>\n<p>\u6211\u4eec\u770b\u7535\u5f71\u3001\u7535\u89c6\u5267\u65f6\u5019\u90fd\u4f1a\u5173\u6ce8\u5267\u60c5\u7b80\u4ecb\uff1b\u6388\u8bfe\u6216\u6f14\u8bb2\u65f6\u5019\u4f1a\u5148\u8bf4\u4e2a\u5927\u7eb2\u3002\u8fd9\u4e9b\u5176\u5b9e\u90fd\u662f\u5148\u5851\u9020\u611f\u6027\u8ba4\u8bc6\uff0c\u8bf4\u767d\u4e86\uff0c\u5c31\u662f\u201c\u8111\u8865\u5f62\u8c61\u201d\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u672c\u6587\u4e0d\u4f1a\u8be6\u7ec6\u3001\u5b8c\u6574\u4ecb\u7ecdPromise\u7684\u4f7f\u7528\u3001\u7279\u70b9\u7b49\u3002\u8fd9\u4e9b\u60a8\u53ef\u4ee5\u53c2\u8003\u672c\u6587\u672b\u5c3e\u7559\u4e0b\u7684\u76f8\u5173\u6587\u7ae0\u5730\u5740\u3002\u53ea\u4f1a\u8ba9\u4f60\u5bf9Promise\u6709\u4e2a\u611f\u6027\u8ba4\u77e5\uff0c\u5728\u8111\u4e2d\u5851\u9020\u51fa\u4e00\u4e2a\u7269\u4f53\u5f62\u8c61\uff0c\u6216\u5927\u53d4\u3001\u6216\u841d\u8389\u3001\u6216\u5fa1\u59d0\u3001\u6216\u591a\u6765A\u68a6\u3001\u6216**\u68d2\u7b49\u3002\u8fd9\u6837\uff0c\u624d\u4f1a\u6709\u5174\u8da3\u3001\u624d\u4f1a\u66f4\u5feb\u7684\u63a5\u53d7\u76f8\u5173\u6280\u672f\u70b9\u3001\u529f\u80fd\u3001\u4f7f\u7528\u6280\u5de7\u7b49\u3002<\/p>\n<p>OK\uff0c\u9996\u5148\u7b2c1\u70b9\uff0c<strong>Promise\u662f\u4e00\u79cd\u5f62\u5f0f<\/strong>\u3002<\/p>\n<p>\u6ce8\u610f\u8fd9\u91cc\u7684\u63aa\u8f9e\uff0c\u201cPromise\u662f\u4e00\u79cd\u5f62\u5f0f\u201d\uff0c\u4e5f\u5c31\u662f\u4e0d\u8981\u628aPromise\u770b\u6210\u662f\u67d0\u4e9b\u65b9\u6cd5\u3001\u51fd\u6570\u4e4b\u7c7b\u7684\u3002\u7c7b\u4f3c\u4e8e\u4e0d\u8981\u628a\u201c\u5c0f\u59d0\u201d\u770b\u6210\u67d0\u4e2a\u4eba\uff0c\u800c\u662f\u67d0\u79cd\u804c\u4e1a\u3002<\/p>\n<p>Promise\u4e2d\u6587\u6709\u201c\u8a93\u8a00\u201d\u3001\u201c\u627f\u8bfa\u201d\u4e4b\u610f\u3002\u4ece\u5b57\u9762\u610f\u601d\u6211\u4eec\u4e5f\u4f3c\u4e4e\u4f53\u4f1a\u51fa\u4e00\u70b9\u201c\u5f62\u5f0f\u201d\u7684\u5473\u9053\u3002\u4f46\u662f\uff0c\u6ce8\u610f\u8fd9\u91cc\u7684\u8f6c\u6298\uff0c\u6839\u636e\u81ea\u5df1\u7684\u7406\u89e3\uff0cPromise\u5b8c\u5168\u4e0d\u80fd\u6309\u7167\u201c\u627f\u8bfa\u201d\u6765\u7406\u89e3\uff0c\u800c\u662f\u8981\u6839\u636e\u5176\u97f3\u8bd1\u2014\u2014\u201c<strong>\u666e\u7f57\u7c73\u4fee\u65af<\/strong>\u201d\u3002\u666e\u7f57\u7c73\u4fee\u65af\u662f\u5e0c\u814a\u795e\u8bdd\u6545\u4e8b\u4e2d\u7684\u82f1\u96c4\uff0c\u540d\u5b57\u7684\u610f\u601d\u662f\u201c\u5148\u77e5\u201d\u3002Promise\u6700\u521d\u7684\u547d\u540d\u662fFutures, \u201c\u672a\u6765\u201d\uff0c\u53ef\u89c1Promise\u542b\u4e49\u4e0d\u662f\u5b57\u9762\u7684\u201c\u8a93\u8a00\u201d\u201c\u627f\u8bfa\u201d\u4e4b\u7c7b\uff0c\u800c\u662f\u201c\u5148\u77e5\u201d\u201c\u672a\u6765\u201d\u7684\u610f\u601d\u3002<\/p>\n<p>\u90a3\u8be5\u5982\u4f55\u7406\u89e3\u201c\u5148\u77e5\u201d\uff0cJS\u4e0e\u5148\u77e5\u6709\u4ec0\u4e48\u5173\u7cfb\uff1f<\/p>\n<p>\u6211\u4eec\u90fd\u77e5\u9053\uff0cJS\u662f\u5355\u7ebf\u7a0b\u7684\uff0c\u4e5f\u5c31\u662f\u4e00\u6761\u7ebf\u4e0b\u6765\u7684\uff0c\u8fd9\u662f\u4ee3\u7801\u4e16\u754c\u7684\u4e00\u6761\u89c4\u5219\u3002\u90a3\u4e48\u73b0\u5b9e\u4e16\u754c\u6709\u4e0e\u4e4b\u547c\u5e94\u7684\u5417\uff1f\u2014\u2014\u4eba\uff1fNo, No, \u4eba\u662f\u591a\u7ebf\u7a0b\u7684\uff0c\u4eba\u53ef\u4ee5\u4e00\u8fb9\u770b\u52a8\u4f5c\u7247\uff0c\u4e00\u8fb9\u64b8\u667a\u6df1\u3002\u90a3\u662f\u4ec0\u4e48\u4e1c\u897f\u5462\uff1f\u54c8\uff0c\u6ca1\u9519\uff0c\u65f6\u95f4\uff0c\u73b0\u5b9e\u4e16\u754c\u91cc\uff0c\u65f6\u95f4\u8fd9\u6761\u7ebf\u5c31\u662f\u5355\u7ebf\u7a0b\u7684\uff0c\u4e0d\u4f1a\u51fa\u73b0\u4e24\u6761\u65f6\u95f4\u7ebf\uff0c\u8fd9\u79cd\u4e8b\u662f\u4f1a\u51fa\u73b0\u5728\u79d1\u5e7b\u6545\u4e8b\u91cc\u3002<\/p>\n<p>\u4eba\u5f53\u4e0b\u6240\u7ecf\u5386\u7684\u73b0\u5b9e\u4e16\u754c\u4e2d\uff0c\u5f88\u591a\u884c\u4e3a\u7ed3\u679c\u662f\u672a\u77e5\u7684\uff0c\u4e0d\u662f\u5373\u65f6\u5448\u73b0\u7684\u3002\u4f8b\u5982\uff0c\u4eca\u5929\u7684NFL\u8d85\u7ea7\u7897\uff0c\u5de8\u661f\u66fc\u5b81\u7387\u9886\u7684\u91ce\u9a6c\u961f\u4e0e\u672c\u8d5b\u5b63\u9ed1\u9a6c\u6d77\u9e70\u961f\u7684\u6bd4\u8d5b\u3002\u8fd9\u5b9e\u9645\u4e0a\u662f\u4e2a\u5f02\u6b65\u7684\u8fc7\u7a0b\uff0c\u67d0\u660e\u661f\u538b\u4e861000\u4e07\u8d4c\u6ce8\u91ce\u9a6c\u961f\u8d62\uff0c\u6bd4\u8d5b\u7684\u7ed3\u679c\u4f1a\u5f71\u54cd\u8fd9\u4f4d\u660e\u661f\u72b6\u6001\u3002\u8fd9\u5c31\u7c7b\u4f3c\u4e8eJS\u4e2d\u53d1\u9001\u4e00\u4e2a\u5f02\u6b65\u7684Ajax\u8bf7\u6c42\uff0c\u4e0d\u540c\u7684\u8fd4\u56de\u503c\u9020\u6210\u4e0d\u540c\u7684\u5f71\u54cd\u3002<\/p>\n<p>\u800cPromise\u5219\u626e\u6f14\u4e86\u4e00\u4e2a\u201c\u5148\u77e5\u201d\u7684\u89d2\u8272\u3002\u9884\u5148\u5c06\u4f60\u7684\u672a\u6765\u544a\u77e5\uff0c\u89c4\u5212\u597d\u4f60\u7ee7\u7eed\u7684\u8def\u3002\u4f60\u65e0\u9700\u7b49\u5f85\u6700\u7ec8\u7ed3\u679c\u51fa\u6765\uff0c\u4f60\u53ef\u4ee5\u7ee7\u7eed\u4f60\u73b0\u5728\u7684\u751f\u6d3b\u3002\u7528\u4e00\u4e2a\u7b80\u5355\u7684\u56fe\u8868\u793a\u5c31\u662f\u4e0b\u9762\u8fd9\u6837\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201402\/promise-time.png\" width=\"400\" height=\"600\" alt=\"Promise\u4e0e\u65f6\u95f4\u7ebf\" class=\"alignnone\" \/><\/p>\n<p>\u5982\u679c\u4f60\u662f\u4e00\u4e2a\u5148\u77e5\uff0c\u4f60\u662f\u6ca1\u6709\u7b49\u5f85\u3001\u5f02\u6b65\u8fd9\u79cd\u611f\u89c9\u7684\u3002\u8fd9\u5c31\u662fPromise\u7684\u4f5c\u7528\uff0c\u4e00\u79cd\u201c\u5148\u77e5\u201d\u7684\u5f62\u5f0f\u3002\u597d\u6bd4\u4e0a\u5e1d\uff0c\u5df2\u7ecf\u5728\u4ed6\u7684\u65f6\u95f4\u7ef4\u5ea6\u7684\u4e00\u77ac\u95f4\u89c4\u5212\u597d\u4e86\u4f60\u7684\u4e00\u751f\uff08\u56e0\u4e3a\u4ed6\u6709\u5148\u77e5\u7684\u80fd\u529b\uff09\uff08\u4ed6\u65e0\u9700\u8ddf\u7740\u7ecf\u5386\u4f60\u7684\u65f6\u95f4\uff09\uff0c\u867d\u7136\u4f60\u81ea\u5df1\u4f9d\u7136\u611f\u53d7\u5230\u4e86\u65f6\u95f4\uff0c\u4ee5\u53ca\u5404\u79cd\u53d8\u6570\u3002<\/p>\n<p>\u5bf9\u4e8eJS\u4ee3\u7801\u800c\u8a00\uff0c\u6211\u4eec\u5c31\u662f\u4e0a\u5e1d\u3002\u6211\u4eec\u80fd\u591f\u9884\u77e5\u4ee3\u7801\u7684\u8d70\u5411\uff0c\u5e76\u89c4\u5212\u597d\u4ee3\u7801\u7684\u4eba\u751f\u3002<\/p>\n<p>\u56de\u5230\u5f53\u4e0b\uff0c\u6b63\u5728\u7535\u8111\u524d\u7684\u6211\u4eec\uff0c\u60f3\u60f3\u4f60\u4f1a\u7ecf\u5386\u7684\u4e8b\u60c5\uff0c\u53ef\u80fd\u5c31\u4f1a\u662f\u4e0b\u9762\u8fd9\u6837\u5b50\u2014\u2014\u6cbf\u7740\u65f6\u95f4\u7ebf\uff0c\u4e00\u79cd\u4e8b\u60c5\u8fde\u7740\u53e6\u5916\u4e00\u4ef6\u4e8b\uff0c\u6bcf\u4ef6\u4e8b\u90fd\u6709\u591a\u79cd\u53ef\u80fd\u7684\u53d1\u5c55\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201402\/fazhan.png\" width=\"588\" height=\"406\" alt=\"\u65f6\u95f4\u7ebf\u4e0e\u53d1\u5c55\" class=\"alignnone\" \/><\/p>\n<p>\u8fd9\u5c31\u597d\u6bd4JS\u4e16\u754c\u4e2d\u7684\u5f02\u6b65\u64cd\u4f5c\uff0c\u4f8b\u5982Ajax\u8bf7\u6c42\uff0c\u73b0\u5b9e\u4e16\u754c\u4e2d\uff0c\u5927\u90e8\u5206\u7684\u64cd\u4f5c\u7ed3\u679c\u90fd\u4e0d\u662f\u5373\u65f6\u663e\u73b0\u7684\uff08\u7c7b\u4f3cAjax\u64cd\u4f5c\uff09\uff0c\u5982\u679c\u7528JS\u8868\u793a\u6211\u4eec\u7684\u4e00\u751f\uff0c\u90a3\u5c31\u4f1a\u662f\u4e00\u4e2a\u8d85\u7ea7\u65e0\u9650\u957f\u7684\u5d4c\u5957\u3002<\/p>\n<p>\u5b9e\u9645\u4e0a\uff0c\u65e0\u9650\u7684\u5d4c\u5957\u66f4\u7b26\u5408\u6211\u4eec\u5f53\u4e0b\u6240\u611f\u53d7\u7684\u4e16\u754c\u7684\u7406\u89e3\u3002\u65e2\u7136\u5982\u6b64\uff0c\u90a3\u4e3a\u4f55\u6211\u4eec\u5199\u4ee3\u7801\u7684\u65f6\u5019\u4e0d\u559c\u6b22\u4e00\u5806\u5d4c\u5957\u5462\uff1f<\/p>\n<p>\u5f88\u7b80\u5355\uff0c\u6211\u4eec\u5199\u4ee3\u7801\u7684\u65f6\u5019\uff0c\u662f\u4ee5\u4e0a\u5e1d\u7684\u8eab\u4efd\u6765\u5904\u7406\u4ee3\u7801\u7684\uff0c\u6211\u4eec\u662f\u9020\u7269\u4e3b\uff1b\u800c\u4e0d\u662f\u4ee5\u4ee3\u7801\u4e2d\u7684\u89d2\u8272\u8eab\u4efd\u3002\u76ee\u524d\u7684JS\u5f02\u6b65\u56de\u8c03\u5c31\u662f\u6309\u7167\u4ee3\u7801\u89c6\u89d2\u2014\u2014<span style=\"font-family:'microsoft yahei';\">\u968f\u7740\u65f6\u95f4\u63a8\u79fb\uff0c\u4ee3\u7801\u4e2d\u7684\u4eba\u548c\u7269\u4f1a\u7ecf\u5386\u4ec0\u4e48\u4ec0\u4e48<\/span>\u3002\u90a3\u5982\u4f55\u53d8\u6210\u5148\u77e5\u89c6\u89d2\u5462\uff1f\u5f88\u7b80\u5355\uff0c\u4f7f\u7528Promise! \u800c\u8fd9\uff0c\u5c31\u662fPromise\u51fa\u73b0\u7684\u610f\u4e49\uff1a\u201c<strong>\u5c06\u5f02\u6b65\u64cd\u4f5c\u8f6c\u6362\u6210\u66f4\u7b26\u5408\u5148\u77e5\u89c6\u89d2\u7684\u5f62\u5f0f\u5c55\u73b0<\/strong>\u201d\uff01<\/p>\n<h3>\u4e8c\u3001Promise-\u66f4\u7b26\u5408\u73b0\u5b9e\u4e16\u754c\u7684\u76f4\u89c9\u8ba4\u8bc6<\/h3>\n<p>\u6211\u4eec\u4e4b\u4e8e\u4ee3\u7801\u4e3a\u5148\u77e5\uff0c\u5982\u679c\u6211\u4eec\u77e5\u6653\u67d0\u4e00\u4e2a\u73b0\u5b9e\u4e16\u754c\u6545\u4e8b\u53d1\u5c55\u8d70\u5411\uff0c\u5176\u5b9e\u6211\u4eec\u4e5f\u662f\u5148\u77e5\u3002\u56e0\u6b64\uff0c\u5f88\u591a\u65f6\u5019\uff0c\u9664\u4e86\u81ea\u5df1\u6b63\u5728\u7ecf\u5386\u7684\u672a\u77e5\u7684\u7ecf\u5386\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Promise\u5c06\u73b0\u5b9e\u4e16\u754c\u6620\u5c04\u3002<\/p>\n<p>\u65e9\u572811\u5e74\uff0c\u6211\u5199\u8fc7\u4e00\u7bc7\u540d\u53eb\u201c<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=1997\">\u5173\u4e8e\u4e00\u4e2aJS\u529f\u80fd\u5b9e\u73b0\u7684\u601d\u7ef4\u65b9\u5f0f<\/a>\u201d\u6587\u7ae0\uff0c\u8bb2\u7684\u5c31\u662f\u5982\u4f55\u7ad9\u5728\u4ee3\u7801\u7684\u5c42\u9762\uff0c\u8131\u79bb\u73b0\u5b9e\u4e16\u754c\u7684\u601d\u7ef4\u65b9\u5f0f\uff0c\u4ee5\u7a7a\u95f4\u6362\u65f6\u95f4\u6765\u66f4\u7b80\u5355\u5b9e\u73b0\u6211\u4eec\u9700\u8981\u7684\u6548\u679c\u3002<\/p>\n<p>Promise\u4e0e\u4e4b\u7c7b\u4f3c\uff0c\u4e5f\u53ef\u4ee5\u8bf4\u662f\u4e00\u79cd\u601d\u7ef4\u65b9\u5f0f\u7684\u8f6c\u53d8\uff0cPromise\u4f3c\u4e4e\u80fd\u66f4\u597d\u5730\u6620\u5c04\u73b0\u5b9e\u4e16\u754c\uff0c\u4f7f\u4e8b\u60c5\u7684\u53d1\u5c55\u66f4\u7b26\u5408\u6211\u4eec\u7684\u76f4\u89c9\uff08\u770b\u5b8c\u672c\u6587\u5c31\u77e5\u9053\u5176\u542b\u4e49\u4e86~~<img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/21.gif\" align=\"absmiddle\">\uff09\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201402\/code-true-world.png\" width=\"400\" height=\"400\" alt=\"\u63d2\u753b-\u4ee3\u7801\u4e16\u754c\u4e0e\u73b0\u5b9e\u4e16\u754c\" class=\"alignnone\" \/><\/p>\n<p>\u8bb2\u4e00\u4e2a\u73b0\u5b9e\u4e16\u754c\u7684\u6545\u4e8b\u5427\u3002<\/p>\n<p>\u7537\u795e\u89c9\u5f97\u65f6\u673a\u6210\u719f\u4e86\uff0c\u624b\u636799\u6735\u62ab\u7740\u6708\u5b63\u7684\u73ab\u7470\u5411\u5973\u795e\u6c42\u5a5a\uff1a<\/p>\n<blockquote><p>\u201c\u5c0f\u599e\u599e\uff0c\u5ac1\u7ed9\u6211\u5427\uff01\u6211\u53d1\u8a93\uff0c\u6211\u4f1a\u5bf9\u4f60\u4e00\u8f88\u5b50\u597d\u7684\uff01\u201d<br \/>\n\u201c\u8fd9\u4e2a\u561b\uff0c\u4f60\u5148\u53bb\u95ee\u95ee\u6211\u7238\u7238\uff0c\u6211\u5927\u4f2f\u4ee5\u53ca\u6211\u5927\u59d1\u7684\u610f\u601d\uff0c\u4ed6\u4eec\u5168\u90e8\u90fd\u8ba4\u53ef\u4f60\uff0c\u6211\u518d\u8003\u8651\u8003\u8651\uff01\u5bf9\u4e86\uff0c\u5982\u679c\u6211\u7238\u6ca1\u6709\u7b54\u590d\uff0c\u5927\u4f2f\u4ed6\u4eec\u80af\u5b9a\u662f\u4e0d\u4f1a\u540c\u610f\u7684\uff1b\u5982\u679c\u5927\u4f2f\u6ca1\u6709\u7b54\u590d\uff0c\u5927\u59d1\u4e5f\u662f\u4e0d\u4f1a\u540c\u610f\u7684\u3002\u201d\n<\/p><\/blockquote>\n<p>\u5982\u679c\u4f60\u662f\u7537\u795e\uff0c\u4f60\u4f1a\u600e\u4e48\u505a\uff1f<\/p>\n<p>\u6211\u7684\u7b2c\u4e00\u53cd\u5e94\uff08\u76f4\u89c9\uff09\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n<ol>\n<li>\u4e70\u4e9b\u597d\u70df\u597d\u9152\u767b\u95e8\u62dc\u8bbf\u5cb3\u7236\u5927\u4eba\uff0c\u6073\u8bf7\u5cb3\u7236\u5927\u4eba\u628a\u5973\u513f\u8bb8\u914d\u7ed9\u81ea\u5df1\uff1b1\u65e5\u540e\uff0c\u5f97\u5230\u5cb3\u7236\u7b54\u590d\uff0c\u5982\u679c\u540c\u610f\uff0c\u653b\u7565\u5927\u4f2f\uff1b\u5982\u679c\u4e0d\u540c\u610f\uff0c\u7ee7\u7eed\u653b\u75651\u6b21\uff0c\u8981\u662f\u8fd8\u4e0d\u884c\uff0c\u5931\u8d25\u544a\u7ec8\uff1b<\/li>\n<li>\u540c\u4e0a\u653b\u7565\u5927\u4f2f\uff1b<\/li>\n<li>\u4e70\u4e0a\u7b49\u5316\u5986\u54c1\uff0c\u7136\u540e\u540c\u4e0a\u653b\u7565\u5927\u59d1\uff1b<\/li>\n<li>\u62ff\u7740\u6ee1\u6ee1\u7684offer\u62ff\u4e0b\u5973\u795e\u3002<\/li>\n<\/ol>\n<p>\u8fd9\u662f\u6211\u4eec\u73b0\u5b9e\u4e16\u754c\u601d\u7ef4\u65b9\u5f0f\u4e0b\u7684\u76f4\u89c9\u53cd\u5e94\uff0c\u5f88\u7b80\u5355\u7684\uff0c\u4e5f\u5f88\u597d\u61c2\u3002<\/p>\n<p>\u4f46\u662f\u5982\u679c\u6211\u4eec\u4f7f\u7528\u76ee\u524d\u7684JS\u5b9e\u73b0\uff0c\u4f1a\u662f\u600e\u6837\uff1f<\/p>\n<p>\u56e0\u4e3a\u5f97\u5230\u957f\u8f88\u540c\u610f\u662f\u9700\u8981\u7b49\u5f85\u7684\uff0c\u800c\u4e14\u4e00\u6b21\u53ea\u80fd\u653b\u7565\u4e00\u4e2a\u957f\u8f88\uff0c\u800c\u4e14\u8fd8\u80fd\u91cd\u590d\u653b\u7565\u3002\u5982\u679c\u6211\u4eec\u4f7f\u7528\u5f53\u4e0b\u7684JS\u53bb\u5957\u7528\u73b0\u5b9e\u903b\u8f91\uff0c\u53ef\u80fd\u5c31\u4f1a\u8fd9\u6837\u5b50\uff08\u65e0\u9700\u7ec6\u770b\uff09\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre style=\"height:400px; overflow:auto;\">\u7537\u795e.\u8bf7\u6c42({\n   \u59d3\u540d: \"\u5cb3\u7236\",\n   \u6210\u529f: \u7537\u795e.\u7ee7\u7eed\u8bf7\u6c42({\n       \u59d3\u540d: \"\u5927\u4f2f\",\n       \u6210\u529f: \u7537\u795e.\u7ee7\u7eed\u8bf7\u6c42({\n           \u59d3\u540d: \"\u5927\u59d1\",\n           \u6210\u529f: \u7537\u795e.\u6700\u7ec8\u8bf7\u6c42({\n               \u59d3\u540d: \"\u5973\u795e\",\n               \u6210\u529f: \"\u6c42\u5a5a\u6210\u529f\",\n               \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n            }),\n            \u5931\u8d25: \u7537\u795e.\u7ee7\u7eed\u8bf7\u6c42({\n               \u59d3\u540d: \"\u5927\u59d1\",\n               \u6210\u529f: \u7537\u795e.\u6700\u7ec8\u8bf7\u6c42({\n                   \u59d3\u540d: \"\u5973\u795e\",\n                   \u6210\u529f: \"\u6c42\u5a5a\u6210\u529f\",\n                   \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n                }),\n                \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n            })\n        }),\n        \u5931\u8d25: \u7537\u795e.\u7ee7\u7eed\u8bf7\u6c42({\n           \u59d3\u540d: \"\u5927\u4f2f\",\n           \u6210\u529f: \u7537\u795e.\u7ee7\u7eed\u8bf7\u6c42({\n               \u59d3\u540d: \"\u5927\u59d1\",\n               \u6210\u529f: \u7537\u795e.\u6700\u7ec8\u8bf7\u6c42({\n                   \u59d3\u540d: \"\u5973\u795e\",\n                   \u6210\u529f: \"\u6c42\u5a5a\u6210\u529f\",\n                   \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n                }),\n                \u5931\u8d25: \u7537\u795e.\u7ee7\u7eed\u8bf7\u6c42({\n                   \u59d3\u540d: \"\u5927\u59d1\",\n                   \u6210\u529f: \u7537\u795e.\u6700\u7ec8\u8bf7\u6c42({\n                       \u59d3\u540d: \"\u5973\u795e\",\n                       \u6210\u529f: \"\u6c42\u5a5a\u6210\u529f\",\n                       \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n                    }),\n                    \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n                })\n            }),\n            \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n        })\n    }),\n    \u5931\u8d25: \u7537\u795e.\u8bf7\u6c42({\n       \u59d3\u540d: \"\u5cb3\u7236\",\n       \u6210\u529f: \u7537\u795e.\u7ee7\u7eed\u8bf7\u6c42({\n           \u59d3\u540d: \"\u5927\u4f2f\",\n           \u6210\u529f: \u7537\u795e.\u7ee7\u7eed\u8bf7\u6c42({\n               \u59d3\u540d: \"\u5927\u59d1\",\n               \u6210\u529f: \u7537\u795e.\u6700\u7ec8\u8bf7\u6c42({\n                   \u59d3\u540d: \"\u5973\u795e\",\n                   \u6210\u529f: \"\u6c42\u5a5a\u6210\u529f\",\n                   \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n                }),\n                \u5931\u8d25: \u7537\u795e.\u7ee7\u7eed\u8bf7\u6c42({\n                   \u59d3\u540d: \"\u5927\u59d1\",\n                   \u6210\u529f: \u7537\u795e.\u6700\u7ec8\u8bf7\u6c42({\n                       \u59d3\u540d: \"\u5973\u795e\",\n                       \u6210\u529f: \"\u6c42\u5a5a\u6210\u529f\",\n                       \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n                    }),\n                    \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n                })\n            }),\n            \u5931\u8d25: \u7537\u795e.\u7ee7\u7eed\u8bf7\u6c42({\n               \u59d3\u540d: \"\u5927\u4f2f\",\n               \u6210\u529f: \u7537\u795e.\u7ee7\u7eed\u8bf7\u6c42({\n                   \u59d3\u540d: \"\u5927\u59d1\",\n                   \u6210\u529f: \u7537\u795e.\u6700\u7ec8\u8bf7\u6c42({\n                       \u59d3\u540d: \"\u5973\u795e\",\n                       \u6210\u529f: \"\u6c42\u5a5a\u6210\u529f\",\n                       \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n                    }),\n                    \u5931\u8d25: \u7537\u795e.\u7ee7\u7eed\u8bf7\u6c42({\n                       \u59d3\u540d: \"\u5927\u59d1\",\n                       \u6210\u529f: \u7537\u795e.\u6700\u7ec8\u8bf7\u6c42({\n                           \u59d3\u540d: \"\u5973\u795e\",\n                           \u6210\u529f: \"\u6c42\u5a5a\u6210\u529f\",\n                           \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n                        }),\n                        \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n                    })\n                }),\n                \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n            })\n        }),\n        \u5931\u8d25: \"\u6c42\u5a5a\u5931\u8d25\"\n    })\n})<\/pre>\n<\/div>\n<p>\u7acb\u9a6c\u5c31\u6655\u4e86\uff01<img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/34.gif\" align=\"absmiddle\"><\/p>\n<p>\u4e3a\u4f55\u6309\u7167\u73b0\u5b9e\u601d\u7ef4\uff0cJS\u5448\u73b0\u7684\u4f1a\u8fd9\u4e48\u590d\u6742\u5462\uff1f<\/p>\n<ol>\n<li>\u4ee3\u7801\u9700\u8981\u9884\u5148\u8bbe\u5b9a\u597d\u672a\u6765\u8981\u53d1\u751f\u7684\u4e8b\u60c5(\u5148\u77e5\u89c6\u89d2)\uff1b\u4f46\u662f\u73b0\u5b9e\u4e16\u754c\u5e76\u4e0d\u4f1a\u5982\u6b64\uff08\u7ecf\u5386\u8005\u89c6\u89d2\uff09\uff1b<\/li>\n<li>\u4ee3\u7801\u4e2d\uff0c\u7a7a\u95f4\u662f\u7a00\u7f3a\u8d44\u6e90\uff1b\u800c\u73b0\u5b9e\u4e16\u754c\u4e2d\uff0c\u65f6\u95f4\u624d\u662f\u3002<\/li>\n<\/ol>\n<p>\u56e0\u6b64\uff0c\u5728\u4f20\u7edf\u7684JS\u4e2d\uff0c\u7c7b\u4f3c\u8fd9\u79cd\u591a\u5d4c\u5957\uff0c\u591a\u5f02\u6b65\uff0c\u591a\u53d1\u5c55\u7684\uff0c\u6211\u4eec\u9700\u8981\u727a\u7272\uff08\u5bf9\u4e8e\u7a0b\u5e8f\u6765\u8bb2\uff09\u5fae\u4e0d\u8db3\u9053\u7684\u65f6\u95f4\u6362\u53d6\u4ee3\u7801\u7684\u7a7a\u95f4\u548c\u6613\u7ef4\u62a4\u6027\uff0c\u4e8e\u662f\uff0c\u6211\u53ef\u80fd\u5c31\u4f1a\u8fd9\u4e48\u5b9e\u73b0\uff08\u4e5f\u65e0\u9700\u7ec6\u770b\uff09\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>var NanShen = {\n    \"\u8eab\u9ad8\": 180,\n    \"\u4f53\u91cd\": 80,\n    \"\u5e74\u85aa\": \"200K\",\n    <span style=\"color:#cd0000;\">request<\/span>: function(obj) {\n        <span style=\"color:green;\">\/\/ \u653b\u7565\u957f\u8f88\u6210\u529f\u4e0e\u5426\u968f\u673a\u51b3\u5b9a\n        \/\/ \u6210\u529f\u6982\u7387\u4e3a80%<\/span>\n        if (Math.random() > 0.2) {\n            obj.success();\n        } else {\n            obj.error();\n        }\n    }\n};\n\nvar Request = function(names, success) {\n    var index = 0, first = 0;\n    var request = function() {\n        if (names[index]) {\n            NanShen.<span style=\"color:#cd0000;\">request<\/span>({\n                name: names[index],\n                success: function() {\n                    first = 0;\n                    console.log(\"\u6210\u529f\u62ff\u4e0b\" + names[index]);\n                    index++;\n                    request();\n                },\n                error: function() {\n                    if (first == 1) {\n                        console.log(\"\u4f9d\u65e7\u6ca1\u80fd\u62ff\u4e0b\" + names[index] + \"\uff0c\u6c42\u5a5a\u5931\u8d25\");    \n                        return;\n                    } else {\n                        console.log(\"\u6ca1\u80fd\u62ff\u4e0b\" + names[index] + \"\uff0c\u518d\u8bd5\u4e00\u6b21\");    \n                    }\n                    first = 1;\n                    request();    \n                }\n            });    \n        } else {\n            success();\n        }\n    };    \n    \n    request();\n};\n\nRequest([<span style=\"color:#FBA247;\">\"\u5cb3\u7236\", \"\u5927\u4f2f\", \"\u5927\u59d1\"<\/span>], function() {\n    NanShen.<span style=\"color:#cd0000;\">request<\/span>({\n        name: \"\u5973\u795e\",\n        success: function() {\n            console.log(\"\u5973\u795e\u540c\u610f\uff0c\u6c42\u5a5a\u6210\u529f\uff01\");\n        },\n        error: function() {\n            console.log(\"\u5973\u795e\u4e0d\u540c\u610f\uff0c\u6c42\u5a5a\u5931\u8d25\uff01\");\n        }\n    });\n});<\/pre>\n<\/div>\n<p>\u4e0a\u9762\u4ee3\u7801\u901a\u8fc7\u5f02\u6b65\u56de\u8c03\uff0c\u6709\u6548\u91cd\u590d\u5229\u7528\u4e86JS\u4ee3\u7801\uff0c\u5b9e\u73b0\u4e86\u7537\u795e\u7684\u6c42\u5a5a\u5386\u7a0b\u3002<\/p>\n<p>\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a target=\"_blank\" class=\"a_link\" href=\"http:\/\/www.zhangxinxu.com\/study\/201402\/promise-1.html\">\u4f20\u7edfJS\u601d\u7ef4\u4e0b\u5b9e\u73b0\u7684\u6c42\u5a5a\u5386\u7a0b\u8868\u73b0<\/a><\/p>\n<p>\u7537\u795e\u7684\u6bcf\u6b21\u653b\u7565\u6210\u529f\u7387\u662f80%, \u56e0\u6b64\uff0c\u5176\u653b\u7565\u7ed3\u679c\u53ef\u80fd\u662f\u8fd9\u6837\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201402\/2014-02-18_212533.png\" width=\"283\" height=\"220\" alt=\"\u6c42\u5a5a\u653b\u7565\u7ed3\u679c\" class=\"alignnone\" \/><\/p>\n<p>\u6216\u8005\u8fd9\u6837\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201402\/2014-02-18_212547.png\" width=\"238\" height=\"136\" alt=\"\u6c42\u5a5a\u653b\u7565\u7ed3\u679c\" class=\"alignnone\" \/><\/p>\n<p>\u6216\u8005\u8fd9\u6837\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201402\/2014-02-18_212603.png\" width=\"322\" height=\"139\" alt=\"\u6c42\u5a5a\u653b\u7565\u7ed3\u679c\" class=\"alignnone\" \/><\/p>\n<p>\u7b49\u3002\u81ea\u5df1\u8fdb\u5165demo\u6b7b\u547d\u5237\u65b0\u6d4b\u8bd5\u81ea\u5df1\u4eba\u54c1\u5427~<\/p>\n<p><span class=\"s\">&#8212;&#8212;&#8212;&#8212;&#8211;\u4f4e\u8c03\u7684\u5206\u9694\u7ebf&#8212;&#8212;&#8212;&#8212;-<\/span><\/p>\n<p>\u4e0d\u80fd\u56e0\u4e3a\u672c\u6587\u4e3b\u89d2\u662fPromise\u5c31\u539a\u6b64\u8584\u5f7c\uff0c\u4e0a\u9762\u7684JS\u5b9e\u73b0\u662f\u5f88\u8d5e\u7684\uff0c\u4ee5\u4e00\u79cd\u5e26\u6709Promise\u7684\u5473\u9053\u5c06\u591a\u6761\u4ef6\u591a\u5f02\u6b65\u7684\u590d\u6742\u4e16\u754c\u7528JS\u5448\u73b0\u51fa\u6765\uff0c\u4e5f\u662f\u4e00\u79cd\u5f88\u5de7\u5999\u7684\u5f62\u5f0f\u8f6c\u5316\uff0c\u5957\u4e2a\u5671\u5934\u5e94\u8be5\u53ef\u4ee5\u53eb\u505a\u201cxxx\u6a21\u5f0f\u201d\uff0c\u5475\u5475~<\/p>\n<p>\u7136\u540e\uff0c\u4e0a\u9762\u65b9\u6cd5\uff0c\u4f9d\u6b21\u6267\u884c\u7684\u89e6\u53d1\u4f9d\u7136\u5728\u56de\u8c03\u4e2d\uff0c\u5176\u5b9e\u5e76\u4e0d\u7b26\u5408\u6211\u4eec\u73b0\u5b9e\u7684\u601d\u8003\u3002\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u5f97\u5230\u7684\u4ee3\u7801\u5177\u6709\u5982\u4e0b\u4e0e\u73b0\u5b9e\u4e16\u754c\u7edf\u4e00\u7684\u601d\u7ef4\uff1a\u201c\u641e\u5b9a\u5cb3\u7236\u2192\u641e\u5b9a\u5927\u4f2f\u2192\u641e\u5b9a\u5927\u59d1\u2192\u641e\u5b9a\u5973\u795e\u201d\uff0c\u4f46\u662f\uff0c\u4e0a\u9762\u7684\u5b9e\u73b0\u5374\u770b\u4e0d\u51fa\u8fd9\u6837\u7684\u601d\u7ef4\u3002\u800cPromise\u8fd9\u79cd\u5f62\u5f0f\u53ef\u4ee5\u8ba9\u4ee3\u7801\u5448\u73b0\u66f4\u7b26\u5408\u771f\u5b9e\u4e16\u754c\u7684\u76f4\u89c9\u3002\u5728\u8fd9\u4e2a\u6545\u4e8b\u91cc\uff0c\u5973\u795e\u5176\u5b9e\u5df2\u7ecf\u628a\u6545\u4e8b\u7684\u8d70\u5411\u5168\u90e8\u544a\u8bc9\u4f60\u4e86\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u5176\u5b9e\u5df2\u7ecf\u77e5\u6653\u4e86\u672a\u6765\uff0c\u6211\u4eec\u5df2\u7ecf\u662f\u5148\u77e5\uff0c\u663e\u7136\uff0c\u4f7f\u7528Promise\u662f\u5f88\u53ef\u884c\u7684\u3002<\/p>\n<p>\u90a3\u4f7f\u7528Promise\u8be5\u662f\u4ec0\u4e48\u6a21\u6837\u5462\uff1f\u53ef\u53c2\u8003\u4e0b\u9762\u7684\u4ee3\u7801\u4ee5\u53cademo.<\/p>\n<div class=\"zxx_code\">\n<pre><span style=\"color:green;\">\/\/ \u7537\u795e\u7684\u5404\u9879\u53c2\u6570<\/span>\nvar NanShen = {\n    \"\u8eab\u9ad8\": 180,\n    \"\u4f53\u91cd\": 80,\n    \"\u5e74\u85aa\": \"200K\",\n    request: function(obj) {\n        <span style=\"color:green;\">\/\/ \u6210\u529f\u4e0e\u5426\u968f\u673a\u51b3\u5b9a<\/span>\n        <span style=\"color:green;\">\/\/ \u6267\u884c\u6210\u529f\u7684\u6982\u7387\u4e3a80%<\/span>\n        if (Math.random() > 0.2) {\n            obj.success();\n        } else {\n            obj.error();\n        }\n    }\n};\n\nvar Request = function(name) {\n    return new <mark>Promise<\/mark>(function(resolve, reject) {\n        var failed = 0, request = function() {            \n            NanShen.<span style=\"color:#cd0000;\">request<\/span>({\n                name: name,\n                success: function() {\n                    console.log(name + \"\u653b\u7565\u6210\u529f\uff01\");\n                    failed = 0;\n                    resolve();\n                },\n                error: function() {\n                    if (failed == 0) {\n                        console.log(\"\u7b2c\u4e00\u6b21\u653b\u7565\" + name + \"\u5931\u8d25\uff0c\u91cd\u8bd5\u4e00\u6b21\uff01\");\n                        failed = 1;\n                        <span style=\"color:green;\">\/\/ \u91cd\u65b0\u653b\u7565\u4e00\u6b21<\/span>\n                        request();                       \n                    } else {\n                        console.log(\"\u4f9d\u7136\u6ca1\u6709\u62ff\u4e0b\" + name + \"\uff0c\u6c42\u5a5a\u5931\u8d25\uff01\");\n                        reject();\n                    }\n                }\n            });\n        };\n\t\t\n        request();\n    });\n};\n\nRequest(\"\u5cb3\u7236\")                                <span style=\"color:green;\">\/\/ \u641e\u5b9a\u5cb3\u7236\uff0c\u7136\u540e...<\/span>\n.<mark>then<\/mark>(function() { return Request(\"\u5927\u4f2f\"); })  <span style=\"color:green;\">\/\/ \u641e\u5b9a\u5927\u4f2f\uff0c\u7136\u540e...<\/span>\n.<mark>then<\/mark>(function() { return Request(\"\u5927\u59d1\"); })  <span style=\"color:green;\">\/\/ \u641e\u5b9a\u5927\u59d1\uff0c\u7136\u540e...<\/span>\n.<mark>then<\/mark>(function() {                            <span style=\"color:green;\">\/\/ \u957f\u8f88\u4eec\u5168\u90e8KO\u540e\uff0c\u653b\u7565\u5973\u795e<\/span>\n    NanShen.<span style=\"color:#cd0000;\">request<\/span>({\n        name: \"\u5973\u795e\",\n        success: function() {\n            console.log(\"\u5973\u795e\u540c\u610f\uff0c\u6c42\u5a5a\u6210\u529f\uff01\");\n        },\n        error: function() {\n            console.log(\"\u5973\u795e\u4e0d\u540c\u610f\uff0c\u6c42\u5a5a\u5931\u8d25\uff01\");\n        }\n    });\n});<\/pre>\n<\/div>\n<p>\u4ee3\u7801\u6ca1\u5fc5\u8981\u7ec6\u770b\u3002\u7b49\u4ee5\u540ePromise\u89c4\u8303\u6210\u719f\u4e4b\u540e\u518d\u7ec6\u7ec6\u7814\u7a76\u3002<\/p>\n<p>\u54c8\uff0c\u5fd8\u8bb0demo\u4e86\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/study\/201402\/promise-2.html\" target=\"_blank\" class=\"a_link\">\u7537\u795e\u6c42\u5a5a\u5386\u7a0b\u7684Promise\u5b9e\u73b0<\/a><\/p>\n<p>\u4e00\u6837\u7684\u98ce\u683c\uff0c\u4e00\u6837\u7684\u5473\u9053\uff0c\u4e00\u6837\u7684\u968f\u673a\u653b\u7565\u7ed3\u679c\uff0c\u4f8b\u5982\u50cf\u4e0b\u9762\u8fd9\u6837\u6b7b\u5728\u5927\u4f2f\u624b\u4e0a\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201402\/2014-02-19_155032.png\" width=\"326\" height=\"143\" alt=\"\u88ab\u5927\u4f2f\u7ed9\u963b\u62e6\u4e86\uff0c\u6c42\u5a5a\u5931\u8d25\" class=\"alignnone\" \/><\/p>\n<p>\u867d\u7136\u4ee3\u7801\u91cf\u548c\u4f20\u7edfJS\u5b9e\u73b0\u4e0d\u5206\u4f2f\u4ef2\uff0c\u4f46\u662f\uff0c\u6ce8\u610f\u8fd9\u91cc\uff0c\u4e0b\u9762\u622a\u56fe\u6240\u793a\u8fd9\u5708\u4ee3\u7801\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201402\/2014-02-19_155543.png\" width=\"599\" height=\"326\" alt=\"Promise\u65b9\u5f0f\u5b9e\u73b0\u4ee3\u7801\u5c42\u9762\u4f18\u52bf\u7684\u89e3\u8bfb\" class=\"alignnone\" \/><\/p>\n<p>\u622a\u56fe\u4e0a\u7684\u6587\u5b57\u662f\uff1a<\/p>\n<blockquote><p>\u5bf9\u4e8e\u5148\u77e5\u7684\u6211\u4eec\uff0c\u6545\u4e8b\u7684\u5b89\u6392\u5728\u8111\u4e2d\u662f\u5373\u65f6\u51fa\u73b0\u7684\uff0c\u800c\u975e\u5b9e\u9645\u4e0a\u7684\u5f02\u6b65\u53d1\u751f\u3002\u56e0\u6b64\uff0c\u4f5c\u4e3a\u521b\u4e16\u7684\u7f16\u7a0b\u8005\u800c\u8a00\uff0c\u8fd9\u79cd\u4e0e\u77ac\u95f4\u601d\u8003\u6240\u540c\u6b65\u7684\u4ee3\u7801\u66f4\u7b26\u5408\u73b0\u5b9e\u4e16\u754c\u4e0b\u7684\u601d\u8003\u65b9\u5f0f\u3002\u56e0\u6b64\uff0c\u66f4\u6613\u8bfb\u66f4\u6613\u4e8e\u7406\u89e3\u3002<\/p><\/blockquote>\n<p>\u65e0\u8bba\u662f\u4ee3\u7801\u4e16\u754c\u4e2d\u7684\u7f16\u7a0b\u8fd8\u662f\u73b0\u5b9e\u4e16\u754c\u7684\u8bb2\u6545\u4e8b\uff0c\u6211\u4eec\u90fd\u662f\u4e00\u4e2a\u5148\u77e5\u7684\u89d2\u8272(\u9664\u975e\u4f60\u80fd\u8ba9\u673a\u5668\u81ea\u6211\u5b66\u4e60\uff0c\u65e0\u6cd5\u9884\u77e5\u5176\u8d70\u5411)\uff0c\u90fd\u662fPromise. <\/p>\n<p>\u73b0\u5b9e\u4e16\u754c\u4e2d\uff0c\u6211\u4eec\u8981\u8bb2\u4e00\u4e2a\u6545\u4e8b\uff0c\u90fd\u662f\u4e00\u77ac\u95f4\u5728\u8111\u4e2d\u77e5\u6653\uff08\u6ca1\u6709\u5f02\u6b65\uff0c\u7b49\u5f85\u65f6\u95f4\u7ecf\u5386\u7684\u8fc7\u7a0b\uff09\uff0c\u4f8b\u5982\u6559\u6388\u6b7b\u4e86\uff0c\u70b8\u9e21\u5564\u9152\u5973\u4f1a\u54ed\u5f97\u6b7b\u53bb\u6d3b\u6765\u3002\u5728\u5199\u4ee3\u7801\u903b\u8f91\u7684\u65f6\u5019\uff0c\u8111\u4e2d\u7684\u53cd\u5e94\u4e5f\u662f\u5982\u6b64\uff0c\u4e00\u77ac\u95f4\u77e5\u6653\u903b\u8f91\u53d8\u5316\uff0c<code>if(Jiaoshou == \"dead\") { crying~ }<\/code>, \u662f\u5148\u77e5\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u66f4\u4e50\u610f\u770b\u5230\u7b26\u5408\u6211\u4eec\u77ac\u65f6\u601d\u7ef4\u7684\u4ee3\u7801\u5448\u73b0\uff0c\u800c\u4e0d\u662f\u7b26\u5408\u5b9e\u9645\u53d1\u5c55\u7684\u4ee3\u7801\u5448\u73b0\u3002<\/p>\n<p>\u5148\u77e5\u601d\u7ef4\u7684\u4ee3\u7801\u5448\u73b0\u5c31\u662fPromise\u5f62\u5f0f\uff1b\u5f53\u5c40\u8005\u601d\u7ef4\u7684\u4ee3\u7801\u5448\u73b0\u5c31\u662f\u5f02\u6b65\u56de\u8c03\u5f62\u5f0f\u3002<\/p>\n<p>\u5982\u679c\u5957\u7528\u6c42\u5a5a\u7684\u6545\u4e8b\uff0c\u5219\uff1a<\/p>\n<ul>\n<li>\u5148\u77e5\u601d\u7ef4\uff08\u7b2c\u4e09\u4eba\u79f0\u89c6\u89d2\uff09\u2014\u2014\u641e\u5b9a\u5cb3\u7236\u2192\u641e\u5b9a\u5927\u4f2f\u2192\u641e\u5b9a\u5927\u59d1\u2192\u641e\u5b9a\u5973\u795e<\/li>\n<li>\u5f53\u5c40\u8005\u601d\u7ef4\uff08\u7b2c\u4e00\u4eba\u79f0\u89c6\u89d2\uff09\u2014\u2014\u53bb\u641e\u5b9a\u5cb3\u7236\u2192<span style=\"color:#666;\">&#8230;\u7b49\u5f85\u671f&#8230;\u7ed3\u679c\u6765\u4e86&#8230;<\/span>\u2192\u53bb\u641e\u5b9a\u5927\u4f2f\u2192<span style=\"color:#666;\">&#8230;\u7b49\u5f85\u671f&#8230;\u7ed3\u679c\u6765\u4e86&#8230;<\/span>\u2192\u53bb\u641e\u5b9a\u5927\u59d1\u2192<span style=\"color:#666;\">&#8230;\u7b49\u5f85\u671f&#8230;\u7ed3\u679c\u6765\u4e86&#8230;<\/span>\u2192\u53bb\u641e\u5b9a\u5973\u795e\u2192<span style=\"color:#666;\">&#8230;\u7b49\u5f85\u671f&#8230;\u7ed3\u679c\u6765\u4e86&#8230;<\/span><\/li>\n<\/ul>\n<p>\u524d\u8005\u662f\u5148\u77e5\u662f\u4e0a\u5e1d\uff0c\u5728\u89c4\u5212\uff1b\u540e\u8005\u662f\u51e1\u4eba\uff0c\u5728\u7ecf\u5386\u3002<\/p>\n<p>Codeing\u4ee5\u53ca\u8bb2\u6545\u4e8b\u90fd\u662f\u89c4\u5212\uff0c\u56e0\u6b64\uff0c<strong>Promise\u8fd9\u79cd\u5148\u77e5\u5f62\u5f0f\u4f1a\u8ba9\u4ee3\u7801\u66f4\u7b26\u5408\u6211\u4eec\u7684\u8ba4\u77e5<\/strong>\u3002\u8bf4\u767d\u4e86\u5c31\u662f\u66f4\u597d\u61c2\uff0c\u66f4\u597d\u7ef4\u62a4\uff0c\u53ef\u4ee5\u600e\u4e48\u60f3\u5c31\u600e\u4e48\u5199\uff0c\u800c\u65e0\u9700\u5199\u7740\u5199\u7740\u53d1\u73b0\u4e2b\u7684\u9700\u8981\u5d4c\u5957\u9700\u8981\u518d\u5957\u4e00\u4e2a\u51fd\u6570\u505a\u56de\u8c03\u3002<\/p>\n<h3>\u4e09\u3001\u7ed3\u8bed\u4ee5\u53caPromise\u5176\u4ed6\u76f8\u5173<\/h3>\n<p>ES6\u4e2d\u9664\u4e86Promise, \u8fd8\u6709\u5176\u4ed6\u4e00\u4e9b\u9ad8\u7ea7\u7684\u4e1c\u897f\uff0c\u4f8b\u5982<code>Generator<\/code>, <code>let<\/code>, <code>for-of<\/code>. \u4e0d\u8fc7\u5148\u6682\u65f6\u653e\u5728\u4e00\u8fb9\uff0c\u56de\u5934\u518d\u638c\u63e1\u3002<\/p>\n<p>\u8fd8\u662f\u90a3\u53e5\u8bdd\uff0cPromise\u53ea\u662f\u8ba9\u6211\u4eec\u5f53\u4e0b\u7684JS\u6362\u4e86\u4e00\u79cd\u5f62\u5f0f\u5b9e\u73b0\uff0c\u66f4\u7b26\u5408\u7f16\u7a0b\u65f6\u5019\u7684\u601d\u8003\u89d2\u5ea6\u4e0e\u65b9\u5f0f\u3002\u56e0\u6b64\uff0c\u901a\u8fc7\u7279\u5b9a\u7684\u8f6c\u6362\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u8ba9\u4e0d\u652f\u6301Promise\u7684\u4f4e\u7248\u672c\u6d4f\u89c8\u5668\u652f\u6301\u4e4b\u3002\u60a8\u53ef\u4ee5\u8bd5\u8bd5\u5728\u9875\u9762\u5f15\u5165\u5982\u4e0bJS\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;script src=\"http:\/\/s3.amazonaws.com\/es6-promises\/promise-0.1.1.min.js\">&lt;\/script><\/pre>\n<\/div>\n<p>GitHub\u70b9\u51fb<a href=\"https:\/\/github.com\/jakearchibald\/es6-promise\/blob\/master\/README.md\">\u8fd9\u91cc<\/a>\u3002<\/p>\n<p>\u8fd9\u4e5f\u662fPromise\u6709\u4f17\u591a\u5173\u6ce8\u7684\u539f\u56e0\u4e4b\u4e00\u3002<\/p>\n<p>\u4eba\u603b\u662f\u6709\u5dee\u5f02\u7684\u3002\u770b\u5230\u4e00\u4ef6\u4e8b\u7269\u603b\u662f\u4f1a\u6709\u4e0d\u540c\u7684\u8ba4\u77e5\u7684\u3002\u4f8b\u5982\uff0c\u770b\u5230\u4e00\u5e45\u76db\u5f00\u7684\u83ca\u82b1\u7684\u56fe\u7247\uff0c\u6709\u4eba\u4f1a\u8ba4\u4e3a\u8fd9\u662f\u83ca\u82b1\uff0c\u8fd8\u6709\u4eba\u4f1a\u8fd9\u662f\u201c\u83ca\u82b1\u201d\u3002\u5bf9\u4e8ePromise\u4e5f\u662f\u5982\u6b64\u3002\u4f46\u662f\uff0c\u65e0\u8bba\u4f60\u600e\u4e48\u601d\u8003\uff0c\u7b26\u5408\u4f60\u81ea\u5df1\u7684\u601d\u7ef4\u65b9\u5f0f\uff0c\u9002\u5408\u4f60\u81ea\u5df1\u5185\u5fc3\u4e16\u754c\u7684\u90fd\u662f\u6b63\u786e\u7684\u8ba4\u77e5\u3002So, \u53c8\u4f1a\u88ab\u4eba\u6279\u8bc4\u5570\u55e6\u7684\u672c\u6587\u6240\u9610\u8ff0\u7684\u4e00\u4e9b\u611f\u6027\u8ba4\u77e5\uff0c\u5982\u679c\u60a8\u6709\u4e0d\u540c\u7684\u770b\u6cd5\uff0c\u6709\u4e0d\u540c\u7684\u5f62\u8c61\u8ba4\u77e5\uff0c\u90fd\u662fOK\u7684\uff0c\u662f\u5f88\u8d5e\u7684\uff0c\u4e5f\u662f\u5e0c\u671b\u80fd\u6709\u4e0d\u540c\u7684\u611f\u6027\u8ba4\u77e5\u7684\uff01<\/p>\n<p>\u611f\u6027\u8fd9\u4e1c\u897f\uff0c\u5c31\u50cf\u53d1\u52a8\u673a\u91cc\u7684\u6da6\u6ed1\u6cb9\uff0c\u5bd2\u51ac\u91cc\u7684\u6e29\u6696\u9633\u5149\uff0c\u4f1a\u8ba9\u4e8b\u60c5\u53d8\u5f97\u5999\u4e0d\u53ef\u8a00\u3002<\/p>\n<p>\u6b22\u8fce\u4ea4\u6d41\uff0c\u6b22\u8fce\u63a2\u8ba8\u3002<\/p>\n<p><strong>\u76f8\u5173\u6587\u7ae0<\/strong><\/p>\n<ul>\n<li><a href=\"http:\/\/www.sitepoint.com\/overview-javascript-promises\/\">http:\/\/www.sitepoint.com\/overview-javascript-promises\/<\/a><\/li>\n<li><a href=\"http:\/\/www.html5rocks.com\/zh\/tutorials\/es6\/promises\/\">http:\/\/www.html5rocks.com\/zh\/tutorials\/es6\/promises\/<\/a><\/li>\n<li><a href=\"http:\/\/www.sitepoint.com\/deeper-dive-javascript-promises\/\">http:\/\/www.sitepoint.com\/deeper-dive-javascript-promises\/<\/a><\/li>\n<li><a href=\"http:\/\/www.sitepoint.com\/six-things-might-know-promises\/\">http:\/\/www.sitepoint.com\/six-things-might-know-promises\/<\/a><\/li>\n<\/ul>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u4f1a\u7ecf\u5e38\u66f4\u65b0\u77e5\u8bc6\u70b9\u4ee5\u53ca\u4fee\u6b63\u4e00\u4e9b\u9519\u8bef\uff0c\u56e0\u6b64\u8f6c\u8f7d\u8bf7\u4fdd\u7559\u539f\u51fa\u5904\uff0c\u65b9\u4fbf\u6eaf\u6e90\uff0c\u907f\u514d\u9648\u65e7\u9519\u8bef\u77e5\u8bc6\u7684\u8bef\u5bfc\uff0c\u540c\u65f6\u6709\u66f4\u597d\u7684\u9605\u8bfb\u4f53\u9a8c\u3002<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=3975\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=3975<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5bf9\u4e8e\u5148\u77e5\u7684\u6211\u4eec\uff0c\u6545\u4e8b\u7684\u5b89\u6392\u5728\u8111\u4e2d\u662f\u5373\u65f6\u51fa\u73b0\u7684\uff0c\u800c\u975e\u5b9e\u9645\u4e0a\u7684\u5f02\u6b65\u53d1\u751f\u3002\u56e0\u6b64\uff0c\u4f5c\u4e3a\u521b\u4e16\u7684\u7f16\u7a0b\u8005\u800c\u8a00\uff0c\u8fd9\u79cd\u4e0e\u77ac\u95f4\u601d\u8003\u6240\u540c\u6b65\u7684\u4ee3\u7801\u66f4\u7b26\u5408\u73b0\u5b9e\u4e16\u754c\u4e0b\u7684\u601d\u8003\u65b9\u5f0f\u3002\u56e0\u6b64\uff0c\u66f4\u6613\u8bfb\u66f4\u6613\u4e8e\u7406\u89e3\u3002Promise\u8ba9\u6211\u4eec\u4ee5\u5148\u77e5\u7684\u89c6\u89d2\u5448\u73b0\u4ee3\u7801\uff0c\u66f4\u7b26\u5408\u2026\u2026<\/p>\n<p>\u4e00\u7bc7\u504f\u7406\u8bba\u7684\u6587\u7ae0\uff0c\u4e0d\u540c\u7684\u89d2\u5ea6\uff0c\u4e0d\u540c\u7684\u63a2\u8ba8\uff0c\u6216\u8bb8\u4f1a\u6709\u4e0d\u540c\u7684\u6536\u83b7\u3002\u6b22\u8fce\u9605\u8bfb\uff0c\u6b22\u8fce\u4ea4\u6d41~~<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1284],"tags":[904,13,903],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/3975"}],"collection":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/comments?post=3975"}],"version-history":[{"count":0,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/3975\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=3975"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=3975"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=3975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}