{"id":3815,"date":"2015-04-30T15:51:22","date_gmt":"2015-04-30T07:51:22","guid":{"rendered":"https:\/\/sdeno.com\/?p=3815"},"modified":"2016-06-16T09:31:09","modified_gmt":"2016-06-16T01:31:09","slug":"jquery-deferred%e5%af%b9%e8%b1%a1-%e5%bb%b6%e8%bf%9f%e5%af%b9%e8%b1%a1","status":"publish","type":"post","link":"https:\/\/sdeno.com\/?p=3815","title":{"rendered":"jquery Deferred\u5bf9\u8c61 \u5ef6\u8fdf\u5bf9\u8c61"},"content":{"rendered":"<p>\u56de\u8c03 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alert(\"\u51fa\u9519\u5566\uff01\"); });<\/pre>\n<p>\u53ef\u4ee5\u770b\u5230\uff0cdone()\u76f8\u5f53\u4e8esuccess\u65b9\u6cd5\uff0cfail()\u76f8\u5f53\u4e8eerror\u65b9\u6cd5\u3002\u91c7\u7528\u94fe\u5f0f\u5199\u6cd5\u4ee5\u540e\uff0c\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u5927\u5927\u63d0\u9ad8\u3002<\/p>\n<p><strong>\u4e09\u3001\u6307\u5b9a\u540c\u4e00\u64cd\u4f5c\u7684\u591a\u4e2a\u56de\u8c03\u51fd\u6570<\/strong><\/p>\n<p>deferred\u5bf9\u8c61\u7684\u4e00\u5927\u597d\u5904\uff0c\u5c31\u662f\u5b83\u5141\u8bb8\u4f60\u81ea\u7531\u6dfb\u52a0\u591a\u4e2a\u56de\u8c03\u51fd\u6570\u3002<br \/>\n\u8fd8\u662f\u4ee5\u4e0a\u9762\u7684\u4ee3\u7801\u4e3a\u4f8b\uff0c\u5982\u679cajax\u64cd\u4f5c\u6210\u529f\u540e\uff0c\u9664\u4e86\u539f\u6765\u7684\u56de\u8c03\u51fd\u6570\uff0c\u6211\u8fd8\u60f3\u518d\u8fd0\u884c\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u600e\u4e48\u529e\uff1f<br 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$.ajax(\"test2.html\"))\r\n\u3000\u3000.done(function(){ alert(\"\u54c8\u54c8\uff0c\u6210\u529f\u4e86\uff01\"); })\r\n\u3000\u3000.fail(function(){ alert(\"\u51fa\u9519\u5566\uff01\"); });<\/pre>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u7684\u610f\u601d\u662f\uff0c\u5148\u6267\u884c\u4e24\u4e2a\u64cd\u4f5c$.ajax(&#8220;test1.html&#8221;)\u548c$.ajax(&#8220;test2.html&#8221;)\uff0c\u5982\u679c\u90fd\u6210\u529f\u4e86\uff0c\u5c31\u8fd0\u884cdone()\u6307\u5b9a\u7684\u56de\u8c03\u51fd\u6570\uff1b\u5982\u679c\u6709\u4e00\u4e2a\u5931\u8d25\u6216\u90fd\u5931\u8d25\u4e86\uff0c\u5c31\u6267\u884cfail()\u6307\u5b9a\u7684\u56de\u8c03\u51fd\u6570\u3002<\/p>\n<p><strong>\u4e94\u3001\u666e\u901a\u64cd\u4f5c\u7684\u56de\u8c03\u51fd\u6570\u63a5\u53e3\uff08\u4e0a\uff09<\/strong><\/p>\n<p>deferred\u5bf9\u8c61\u7684\u6700\u5927\u4f18\u70b9\u5c31\u662f\u4e3a\u90a3\u4e9b\u6ca1\u6709\u81ea\u5e26\u56de\u8c03\u529f\u80fd\u7684\u51fd\u6570\uff0c\u6dfb\u52a0\u56de\u8c03\u529f\u80fd\u3002<\/p>\n<p><span style=\"color: #111111;\">\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u5177\u4f53\u7684\u4f8b\u5b50\u3002\u5047\u5b9a\u6709\u4e00\u4e2a\u5f88\u8017\u65f6\u7684\u64cd\u4f5cwait\uff1a<\/span><\/p>\n<pre>var wait = function(){\r\n\u3000\u3000\u3000\u3000var tasks = function(){\r\n\u3000\u3000\u3000\u3000\u3000\u3000alert(\"\u6267\u884c\u5b8c\u6bd5\uff01\");\r\n\u3000\u3000\u3000\u3000};\r\n\u3000\u3000\u3000\u3000setTimeout(tasks,5000);\r\n};<\/pre>\n<p>\u6211\u4eec\u4e3a\u5b83\u6307\u5b9a\u56de\u8c03\u51fd\u6570\uff0c\u5e94\u8be5\u600e\u4e48\u505a\u5462\uff1f<br \/>\n\u5f88\u81ea\u7136\u7684\uff0c\u4f60\u4f1a\u60f3\u5230\uff0c\u53ef\u4ee5\u4f7f\u7528$.when()\uff1a<\/p>\n<pre>$.when(wait())\r\n\u3000\u3000.done(function(){ alert(\"\u54c8\u54c8\uff0c\u6210\u529f\u4e86\uff01\"); })\r\n\u3000\u3000.fail(function(){ alert(\"\u51fa\u9519\u5566\uff01\"); });<\/pre>\n<p>\u4f46\u662f\uff0c\u8fd9\u6837\u5199\u7684\u8bdd\uff0cdone()\u65b9\u6cd5\u4f1a\u7acb\u5373\u6267\u884c\uff0c\u8d77\u4e0d\u5230\u56de\u8c03\u51fd\u6570\u7684\u4f5c\u7528\u3002<span style=\"color: #ff0000;\">\u539f\u56e0\u5728\u4e8e$.when()\u7684\u53c2\u6570\u53ea\u80fd\u662fdeferred\u5bf9\u8c61<\/span>\uff0c\u6240\u4ee5\u5fc5\u987b\u8fd4\u56de<span style=\"color: #ff0000;\">deferred\u5bf9\u8c61<\/span>\uff1a<\/p>\n<pre>var dtd = $.Deferred(); \/\/ \u65b0\u5efa\u4e00\u4e2adeferred\u5bf9\u8c61\r\n\u3000\u3000var wait = function(dtd){\r\n\u3000\u3000\u3000\u3000var tasks = function(){\r\n\u3000\u3000\u3000\u3000\u3000\u3000alert(\"\u6267\u884c\u5b8c\u6bd5\uff01\");\r\n\u3000\u3000\u3000\u3000\u3000\u3000dtd.resolve(); \/\/ \u6539\u53d8deferred\u5bf9\u8c61\u7684\u6267\u884c\u72b6\u6001\uff0c\u672a\u5b8c\u6210\u4e5f\u4e00\u6837\u6267\u884cdone()\r\n\u3000\u3000\u3000\u3000};\r\n\u3000\u3000\u3000\u3000setTimeout(tasks,5000);\r\n\u3000\u3000\u3000\u3000return dtd; \/\/\u76ee\u7684\u8981\u8ba9wait()\u8fd4\u56de\u7684\u662fdeferred\u5bf9\u8c61\u4e0d\u7136\u5c31\u4e0d\u80fd\u5728$.when()\u4e0b\u4f7f\u7528\r\n\u3000\u3000};<\/pre>\n<p>\u73b0\u5728\uff0cwait()\u51fd\u6570\u8fd4\u56de\u7684\u662fdeferred\u5bf9\u8c61\uff0c\u8fd9\u5c31\u53ef\u4ee5\u52a0\u4e0a\u94fe\u5f0f\u64cd\u4f5c\u4e86\u3002<\/p>\n<pre>$.when(wait(dtd))\r\n\u3000\u3000.done(function(){ alert(\"\u54c8\u54c8\uff0c\u6210\u529f\u4e86\uff01\"); })\r\n\u3000\u3000.fail(function(){ alert(\"\u51fa\u9519\u5566\uff01\"); });<\/pre>\n<p>wait()\u51fd\u6570\u8fd0\u884c\u5b8c\uff0c\u5c31\u4f1a\u81ea\u52a8\u8fd0\u884cdone()\u65b9\u6cd5\u6307\u5b9a\u7684\u56de\u8c03\u51fd\u6570\u3002<\/p>\n<p><strong>\u516d\u3001deferred.resolve()\u65b9\u6cd5\u548cdeferred.reject()\u65b9\u6cd5<\/strong><\/p>\n<p>\u5c06&#8221;\u672a\u5b8c\u6210&#8221;\u72b6\u6001\u5f52\u7c7b\u4e8edone()\u65b9\u6cd5\u8fd8\u662ffail()\u65b9\u6cd5\u53bb\u6267\u884c\u3002<\/p>\n<p>deferred\u5bf9\u8c61\u6709\u4e09\u79cd\u6267\u884c\u72b6\u6001\uff1a<span style=\"color: #ff0000;\">\u672a\u5b8c\u6210<\/span>\uff0c<span style=\"color: #ff0000;\">\u5df2\u5b8c\u6210<\/span>\u548c<span style=\"color: #ff0000;\">\u5df2\u5931\u8d25<\/span><\/p>\n<p>\u57281.5.0\u7248\u672c\u4ee5\u4e0a$.ajax\u8fd4\u56de\u7684\u662fdeferred\u5bf9\u8c61\uff0cdeferred\u5bf9\u8c61\u4f1a\u6839\u636e\u8fd4\u56de\u7ed3\u679c\uff0c<span style=\"color: #ff0000;\">\u81ea\u52a8<\/span>\u6539\u53d8\u81ea\u8eab\u7684\u6267\u884c\u72b6\u6001\uff0c\u4f46\u662f\uff0c\u5728wait()\u51fd\u6570\u4e2d\uff0c\u8fd9\u4e2a\u6267\u884c\u72b6\u6001\u5fc5\u987b\u7531\u7a0b\u5e8f\u5458\u624b\u52a8\u6307\u5b9a\u3002dtd.resolve()\u7684\u610f\u601d\u662f\uff0c\u5c06dtd\u5bf9\u8c61\u7684\u6267\u884c\u72b6\u6001\u4ece&#8221;\u672a\u5b8c\u6210&#8221;\u6539\u4e3a&#8221;\u5df2\u5b8c\u6210&#8221;\uff0c\u4ece\u800c\u89e6\u53d1done()\u65b9\u6cd5\u3002<\/p>\n<p>\u7c7b\u4f3c\u7684\uff0c\u8fd8\u5b58\u5728\u4e00\u4e2adeferred.reject()\u65b9\u6cd5\uff0c\u4f5c\u7528\u662f\u5c06dtd\u5bf9\u8c61\u7684\u6267\u884c\u72b6\u6001\u4ece&#8221;\u672a\u5b8c\u6210&#8221;\u6539\u4e3a&#8221;\u5df2\u5931\u8d25&#8221;\uff0c\u4ece\u800c\u89e6\u53d1fail()\u65b9\u6cd5\u3002<\/p>\n<pre>var dtd = $.Deferred(); \/\/ \u65b0\u5efa\u4e00\u4e2aDeferred\u5bf9\u8c61\r\n\u3000\u3000var wait = function(dtd){\r\n\u3000\u3000\u3000\u3000var tasks = function(){\r\n\u3000\u3000\u3000\u3000\u3000\u3000alert(\"\u6267\u884c\u5b8c\u6bd5\uff01\");\r\n\u3000\u3000\u3000\u3000\u3000\u3000dtd.reject(); \/\/ \u6539\u53d8Deferred\u5bf9\u8c61\u7684\u6267\u884c\u72b6\u6001,\u672a\u5b8c\u6210\u6267\u884cfail()\u65b9\u6cd5\r\n\u3000\u3000\u3000\u3000};\r\n\u3000\u3000\u3000\u3000setTimeout(tasks,5000);\r\n\u3000\u3000\u3000\u3000return dtd;\r\n\u3000\u3000};\r\n\u3000\u3000$.when(wait(dtd))\r\n\u3000\u3000.done(function(){ alert(\"\u54c8\u54c8\uff0c\u6210\u529f\u4e86\uff01\"); })\r\n\u3000\u3000.fail(function(){ alert(\"\u51fa\u9519\u5566\uff01\"); });<\/pre>\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>\u4ee5\u4e0a\u4f8b\u5b50\u4ee3\u7801\uff0c\u53ef\u4ee5\u5728\u5916\u754c\u4fee\u6539Deferred\u5bf9\u8c61\u7684\u6267\u884c\u72b6\u6001\u5b58\u5728\u7f3a\u9677\uff0c\u5982\uff1a<\/p>\n<pre>var dtd = $.Deferred(); \/\/ \u65b0\u5efa\u4e00\u4e2aDeferred\u5bf9\u8c61\r\n\u3000\u3000var wait = function(dtd){\r\n\u3000\u3000\u3000\u3000var tasks = function(){\r\n\u3000\u3000\u3000\u3000\u3000\u3000alert(\"\u6267\u884c\u5b8c\u6bd5\uff01\");\r\n\u3000\u3000\u3000\u3000\u3000\u3000dtd.resolve(); \/\/ \u6539\u53d8Deferred\u5bf9\u8c61\u7684\u6267\u884c\u72b6\u6001\r\n\u3000\u3000\u3000\u3000};\r\n\u3000\u3000\u3000\u3000setTimeout(tasks,5000);\r\n\u3000\u3000\u3000\u3000return dtd;\r\n\u3000\u3000};\r\n\u3000\u3000$.when(wait(dtd))\r\n\u3000\u3000.done(function(){ alert(\"\u54c8\u54c8\uff0c\u6210\u529f\u4e86\uff01\"); })\r\n\u3000\u3000.fail(function(){ alert(\"\u51fa\u9519\u5566\uff01\"); });\r\n\u3000\u3000dtd.resolve();\/\/\u7a81\u7136\u52a0\u4e86\u4e00\u6761\uff0cwait()\u56de\u8c03\u529f\u80fd\u5c31\u5931\u6548\u3002<\/pre>\n<p>\u89e3\u51b3\u4ee5\u4e0a\u65b9\u6cd5\u67094\u79cd\uff1a<\/p>\n<p>1\uff0c<span style=\"color: #ff0000;\">deferred.promise()<\/span>\u65b9\u6cd5\u5c31\u662f\u4e3a\u4e86\u89e3\u51b3\u4ee5\u4e0a\u95ee\u9898<\/p>\n<pre>var dtd = $.Deferred(); \/\/ \u65b0\u5efa\u4e00\u4e2aDeferred\u5bf9\u8c61\r\n\u3000\u3000var wait = function(dtd){\r\n\u3000\u3000\u3000\u3000var tasks = function(){\r\n\u3000\u3000\u3000\u3000\u3000\u3000alert(\"\u6267\u884c\u5b8c\u6bd5\uff01\");\r\n\u3000\u3000\u3000\u3000\u3000\u3000dtd.resolve(); \/\/ \u6539\u53d8Deferred\u5bf9\u8c61\u7684\u6267\u884c\u72b6\u6001\r\n\u3000\u3000\u3000\u3000};\r\n       setTimeout(tasks,5000);\r\n\u3000\u3000\u3000\u3000<span style=\"color: #ff0000;\"><strong>return dtd.promise();<\/strong> <\/span>\/\/ \u8fd4\u56depromise\u5bf9\u8c61\r\n\u3000\u3000};\r\n\u3000\u3000<span style=\"color: #ff0000;\">var d = wait(dtd);<\/span> \/\/ \u65b0\u5efa\u4e00\u4e2ad\u5bf9\u8c61\uff0c\u6539\u4e3a\u5bf9\u8fd9\u4e2a\u5bf9\u8c61\u8fdb\u884c\u64cd\u4f5c\r\n\u3000\u3000$.when(<span style=\"color: #ff0000;\">d<\/span>)\r\n\u3000\u3000.done(function(){ alert(\"\u54c8\u54c8\uff0c\u6210\u529f\u4e86\uff01\"); })\r\n\u3000\u3000.fail(function(){ alert(\"\u51fa\u9519\u5566\uff01\"); });\r\n\u3000\u3000<span style=\"color: #ff0000;\">d.resolve();<\/span> \/\/ \u6b64\u65f6\uff0c\u8fd9\u4e2a\u8bed\u53e5\u662f\u65e0\u6548\u7684<\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0cwait()\u51fd\u6570\u8fd4\u56de\u7684\u662fpromise\u5bf9\u8c61\u3002\u7136\u540e\uff0c\u6211\u4eec\u628a\u56de\u8c03\u51fd\u6570\u7ed1\u5b9a\u5728\u8fd9\u4e2a\u5bf9\u8c61\u4e0a\u9762\uff0c\u800c\u4e0d\u662f\u539f\u6765\u7684deferred\u5bf9\u8c61\u4e0a\u9762\u3002<strong>\u8fd9\u6837\u7684\u597d\u5904\u662f\uff0c\u65e0\u6cd5\u6539\u53d8\u8fd9\u4e2a\u5bf9\u8c61\u7684\u6267\u884c\u72b6\u6001\uff0c\u8981\u60f3\u6539\u53d8\u6267\u884c\u72b6\u6001\uff0c\u53ea\u80fd\u64cd\u4f5c\u539f\u6765\u7684deferred\u5bf9\u8c61<\/strong>\u3002<br \/>\n\u4e0d\u8fc7\uff0c\u66f4\u597d\u7684\u5199\u6cd5\u662fallenm\u6240\u6307\u51fa\u7684\u3002<\/p>\n<p>2\uff0c\u5c06dtd\u5bf9\u8c61\u53d8\u6210wait(\uff09\u51fd\u6570\u7684\u5185\u90e8\u5bf9\u8c61\u3002<\/p>\n<pre>var wait = function(dtd){\r\n\u3000\u3000\u3000\u3000<span style=\"color: #ff0000;\">var dtd = $.Deferred();<\/span> \/\/\u5728\u51fd\u6570\u5185\u90e8\uff0c\u65b0\u5efa\u4e00\u4e2aDeferred\u5bf9\u8c61\r\n\u3000\u3000\u3000\u3000var tasks = function(){\r\n\u3000\u3000\u3000\u3000\u3000\u3000alert(\"\u6267\u884c\u5b8c\u6bd5\uff01\");\r\n\u3000\u3000\u3000\u3000\u3000\u3000<span style=\"color: #ff0000;\">dtd.resolve();<\/span> \/\/ \u6539\u53d8Deferred\u5bf9\u8c61\u7684\u6267\u884c\u72b6\u6001\r\n\u3000\u3000\u3000\u3000};\r\n       setTimeout(tasks,5000);\r\n\u3000\u3000\u3000\u3000<span style=\"color: #ff0000;\">return dtd.promise();<\/span> \/\/ \u8fd4\u56depromise\u5bf9\u8c61\r\n\u3000\u3000};\r\n\u3000\u3000$.when(wait())\r\n\u3000\u3000.done(function(){ alert(\"\u54c8\u54c8\uff0c\u6210\u529f\u4e86\uff01\"); })\r\n\u3000\u3000.fail(function(){ alert(\"\u51fa\u9519\u5566\uff01\"); });<\/pre>\n<p>3\uff0c\u76f4\u63a5\u628a\u9700\u8981\u6709\u56de\u8c03\u529f\u80fd\u7684\u51fd\u6570\u4f20\u5165\u5230$.Deferred()\uff08\u4e2a\u4eba\u63a8\u8350\u8fd9\u79cd\u5199\u6cd5\uff09<\/p>\n<pre>var wait = function(dtd){ \/\/\u5c06\u4ee3\u7801\u5199\u5728\u4e00\u4e2afunction\u4e2d\u9632\u6b62\u5916\u9762\u968f\u610f\u53ef\u4ee5\u4fee\u6539\u91cc\u9762\u7684\u4ee3\u7801\r\n \u3000\u3000 \u3000 var dtd = $.Deferred(); \/\/\u5728\u51fd\u6570\u5185\u90e8\uff0c\u65b0\u5efa\u4e00\u4e2aDeferred\u5bf9\u8c61\r\n \u3000\u3000\u3000  var tasks = function(){\r\n\r\n \u3000\u3000\u3000\u3000 \u3000\u3000$('#test').css('background','red');\/\/\u7ed9 css()\u6dfb\u52a0\u4e00\u4e2a\u56de\u8c03\uff0c \u5047\u5982\u8fd9\u4e2a\u5c31\u662f\u6211\u4eec\u4e00\u5806\u903b\u8f91\u4ee3\u7801\uff0c\u4e3a\u903b\u8f91\u4ee3\u7801\u5b8c\u6210\u540e\u6dfb\u52a0\u56de\u8c03\r\n\r\n \u3000\u3000\u3000\u3000 \u3000\u3000dtd.resolve(); \/\/ \u4fee\u6539$.Deferred()\u72b6\u6001\u4e3a\u6210\u529f\uff0c\u8fd9\u6837\u624d\u80fd\u89e6\u53d1done\u6210\u529f\u56de\u8c03\r\n \u3000\u3000\u3000  };\r\n \u3000\u3000\u3000 tasks();\r\n \u3000\u3000\u3000 return dtd.promise(); \/\/ \u8fd4\u56depromise\u5bf9\u8c61\uff0c\u8fd9\u6837\u624d\u80fd\u4f7f\u7528\u5728$.when\u8fd9\u6837\u7684\u51fd\u6570\u4e2d\u4e5f\u624d\u80fd\u4f7f\u7528done,fail\u7b49\u5176\u4ed6\u56de\u8c03\uff0c\u9632\u6b62\u5916\u9762\u968f\u610f\u4fee\u6539$.Deferred()\u72b6\u6001\r\n};\r\n\r\n $.when(wait()) \/\/$.when\u80fd\u6267\u884c\u8fd4\u56de\u6765promise\u5bf9\u8c61\u7684\u51fd\u6570\uff0c\u6240\u4ee5$.ajax\u4e5f\u80fd\u5728$.when\u91cc\u9762\u6267\u884c$.ajax\u8fd4\u56de\u7684\u5c31\u662fpromise\u5bf9\u8c61\r\n \u3000\u3000 .done(function(){ alert(\"\u54c8\u54c8\uff0c\u6210\u529f\u4e86\uff01\"); }) \/\/\u6210\u529f\u4e4b\u540e\u7684\u56de\u8c03\r\n \u3000 \u3000.fail(function(){ alert(\"\u51fa\u9519\u5566\uff01\"); });\/\/\u5931\u8d25\u4e4b\u540e\u7684\u56de\u8c03<\/pre>\n<p>jQuery\u89c4\u5b9a\uff0c$.Deferred()\u91cc\u9762\u7684\u53c2\u6570\u53ea\u80fd\u662f\u51fd\u6570\u540d\uff1a\u4f8b\u5982$.Deferred(wait)\uff0c\u800c\u4e0d\u662f<\/p>\n<p>$.Deferred(wait())\u3002<\/p>\n<p>4\uff0c\u76f4\u63a5\u5728wait\u5bf9\u8c61\u4e0a\u90e8\u7f72deferred\u63a5\u53e3<\/p>\n<pre>\u00a0var dtd = $.Deferred(); \/\/ \u751f\u6210Deferred\u5bf9\u8c61\r\n\u3000\u3000var wait = function(dtd){\r\n\u3000\u3000\u3000\u3000var tasks = function(){\r\n\u3000\u3000\u3000\u3000\u3000\u3000alert(\"\u6267\u884c\u5b8c\u6bd5\uff01\");\r\n\u3000\u3000\u3000\u3000\u3000\u3000dtd.resolve(); \/\/ \u6539\u53d8Deferred\u5bf9\u8c61\u7684\u6267\u884c\u72b6\u6001\r\n\u3000\u3000\u3000\u3000};\r\n\u3000\u3000\u3000\u3000setTimeout(tasks,5000);\r\n\u3000\u3000};\r\n\u3000\u3000dtd.promise(wait); \/\/\u76f8\u5f53\u4e8ewait\u4e0a\u6dfb\u52a0\u4e86deferred\u63a5\u53e3\u8fd9\u6837\u5c31\u80fd\u76f4\u63a5\u4f7f\u7528.done().fail()\r\n\u3000\u3000wait.done(function(){ alert(\"\u54c8\u54c8\uff0c\u6210\u529f\u4e86\uff01\"); })\r\n\u3000\u3000.fail(function(){ alert(\"\u51fa\u9519\u5566\uff01\"); });\r\n\u3000\u3000wait(dtd);  \/\/\u5f00\u59cb\u6267\u884c\u3002<\/pre>\n<p>\u8fd9\u91cc\u7684\u5173\u952e\u662fdtd.promise(wait)\u8fd9\u4e00\u884c\uff0c\u5b83\u7684\u4f5c\u7528\u5c31\u662f\u5728wait\u5bf9\u8c61\u4e0a\u90e8\u7f72Deferred\u63a5\u53e3\u3002\u6b63\u662f\u56e0\u4e3a\u6709\u4e86\u8fd9\u4e00\u884c\uff0c\u540e\u9762\u624d\u80fd\u76f4\u63a5\u5728wait\u4e0a\u9762\u8c03\u7528done()\u548cfail()\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p style=\"color: #111111;\"><strong style=\"font-weight: 800;\">\u5c0f\u7ed3\uff1adeferred\u5bf9\u8c61\u7684\u65b9\u6cd5<\/strong><\/p>\n<p style=\"color: #111111;\">\u524d\u9762\u5df2\u7ecf\u8bb2\u5230\u4e86deferred\u5bf9\u8c61\u7684\u591a\u79cd\u65b9\u6cd5\uff0c\u4e0b\u9762\u505a\u4e00\u4e2a\u603b\u7ed3\uff1a<\/p>\n<p style=\"color: #111111;\">\u3000\u3000\uff081\uff09\u00a0<a style=\"color: #112233;\" href=\"http:\/\/api.jquery.com\/category\/deferred-object\/\" target=\"_blank\">$.Deferred()<\/a>\u00a0\u8fd4\u56de\u4e00\u4e2adeferred\u5bf9\u8c61\u3002<\/p>\n<p style=\"color: #111111;\">\u3000\u3000\uff082\uff09\u00a0<a style=\"color: #112233;\" href=\"http:\/\/api.jquery.com\/deferred.done\/\" target=\"_blank\">deferred.done()<\/a>\u00a0\u6307\u5b9a\u64cd\u4f5c\u6210\u529f\u65f6\u7684\u56de\u8c03\u51fd\u6570<\/p>\n<p style=\"color: #111111;\">\u3000\u3000\uff083\uff09\u00a0<a style=\"color: #112233;\" href=\"http:\/\/api.jquery.com\/deferred.fail\/\" target=\"_blank\">deferred.fail()<\/a>\u00a0\u6307\u5b9a\u64cd\u4f5c\u5931\u8d25\u65f6\u7684\u56de\u8c03\u51fd\u6570<\/p>\n<p style=\"color: #111111;\">\u3000\u3000\uff084\uff09\u00a0<a style=\"color: #112233;\" href=\"http:\/\/api.jquery.com\/deferred.promise\/\" target=\"_blank\">deferred.promise()<\/a>\u00a0\u6ca1\u6709\u53c2\u6570\u65f6\uff0c\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684deferred\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u7684\u8fd0\u884c\u72b6\u6001\u65e0\u6cd5\u88ab\u6539\u53d8\uff1b\u63a5\u53d7\u53c2\u6570\u65f6\uff0c\u4f5c\u7528\u4e3a\u5728\u53c2\u6570\u5bf9\u8c61\u4e0a\u90e8\u7f72deferred\u63a5\u53e3\u3002<\/p>\n<p style=\"color: #111111;\">\u3000\u3000\uff085\uff09\u00a0<a style=\"color: #112233;\" href=\"http:\/\/api.jquery.com\/deferred.resolve\/\" target=\"_blank\">deferred.resolve()<\/a>\u00a0\u624b\u52a8\u6539\u53d8deferred\u5bf9\u8c61\u7684\u8fd0\u884c\u72b6\u6001\u4e3a&#8221;\u5df2\u5b8c\u6210&#8221;\uff0c\u4ece\u800c\u7acb\u5373\u89e6\u53d1done()\u65b9\u6cd5\u3002<\/p>\n<p style=\"color: #111111;\">\u3000\u3000\uff086\uff09<a style=\"color: #112233;\" href=\"http:\/\/api.jquery.com\/deferred.reject\/\" target=\"_blank\">deferred.reject()<\/a>\u00a0\u8fd9\u4e2a\u65b9\u6cd5\u4e0edeferred.resolve()\u6b63\u597d\u76f8\u53cd\uff0c\u8c03\u7528\u540e\u5c06deferred\u5bf9\u8c61\u7684\u8fd0\u884c\u72b6\u6001\u53d8\u4e3a&#8221;\u5df2\u5931\u8d25&#8221;\uff0c\u4ece\u800c\u7acb\u5373\u89e6\u53d1fail()\u65b9\u6cd5\u3002<\/p>\n<p style=\"color: #111111;\">\u3000\u3000\uff087\uff09\u00a0<a style=\"color: #112233;\" href=\"http:\/\/api.jquery.com\/jQuery.when\/\" target=\"_blank\">$.when()<\/a>\u00a0\u4e3a\u591a\u4e2a\u64cd\u4f5c\u6307\u5b9a\u56de\u8c03\u51fd\u6570\u3002<\/p>\n<p style=\"color: #111111;\">\u9664\u4e86\u8fd9\u4e9b\u65b9\u6cd5\u4ee5\u5916\uff0cdeferred\u5bf9\u8c61\u8fd8\u6709\u4e8c\u4e2a\u91cd\u8981\u65b9\u6cd5\uff0c\u4e0a\u9762\u7684\u6559\u7a0b\u4e2d\u6ca1\u6709\u6d89\u53ca\u5230\u3002<\/p>\n<p style=\"color: #111111;\">\u3000\u3000\uff088\uff09<a style=\"color: #112233;\" href=\"http:\/\/api.jquery.com\/deferred.then\/\" target=\"_blank\">deferred.then()<\/a><\/p>\n<p style=\"color: #111111;\">\u6709\u65f6\u4e3a\u4e86\u7701\u4e8b\uff0c\u53ef\u4ee5\u628adone()\u548cfail()\u5408\u5728\u4e00\u8d77\u5199\uff0c\u8fd9\u5c31\u662fthen()\u65b9\u6cd5\u3002<\/p>\n<pre style=\"color: #111111;\">$.when($.ajax( \"\/main.php\" )).then(successFunc, failureFunc );<\/pre>\n<p>\u5982\u679cthen()\u6709\u4e24\u4e2a\u53c2\u6570\uff0c\u90a3\u4e48\u7b2c\u4e00\u4e2a\u53c2\u6570\u662fdone()\u65b9\u6cd5\u7684\u56de\u8c03\u51fd\u6570\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662ffail()\u65b9\u6cd5\u7684\u56de\u8c03\u65b9\u6cd5\u3002\u5982\u679cthen()\u53ea\u6709\u4e00\u4e2a\u53c2\u6570\uff0c\u90a3\u4e48\u7b49\u540c\u4e8edone()\u3002<\/p>\n<p><span style=\"color: #ff0000;\">*\u6ce8\u610f<\/span>then()\u5982\u679c\u6709\u8fd4\u56de\u6570\u636e\u540e\u9762\u94fe\u63a5done()\u5c31\u53ef\u4ee5\u63a5\u53d7\u6570\u636e\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>\/\/\u4ee5\u4e0b\u7ed3\u679c\u662f\u5728jQuery 1.8\u7248\u672c\u4e4b\u540e\r\n\r\n$.when($.ajax( \"\/main.php\" )).then(function(a){\r\n  return a; \/\/\u8fd9\u91cc\u7684a\u662f\u4e0a\u4e2a$.when\u8fd4\u56de\u7684\u6570\u636e\r\n}).done(function(a){\r\n  console.log(a);  \/\/\u8fd9\u91cc\u63a5\u6536\u7684a\u662f\u4e0a\u4e2athen\u8fd4\u56de\u7684\r\n});\r\n\r\n\r\n\u6848\u4f8b\u4e8c\uff1a\r\n var defer = jQuery.Deferred();\r\n defer.done(function(a,b){\r\n    return a * b; \/\/done \u4e0d\u80fd\u8fd4\u56de\u6570\u636e\u8ddfdone\r\n }).done(function( result ) {\r\n    console.log(\"result1 = \" + result); \/\/2 done\u4e0d\u80fd\u8fd4\u56de\u6570\u636e\u8ddfdone,\u6240\u4ee5\u7b2c\u4e00\u4e2a\u53c2\u6570\u8fd8\u662f2\r\n }).then(function( a, b ) {\r\n    return a * b; \/\/then\u80fd\u8fd4\u56de\u6570\u636e\u7ed9done\r\n }).done(function( result ) {\r\n    console.log(\"result2 = \" + result); \/\/6 6,\u7ed3\u679c\u662fthen\u8fd4\u56de\u6765\u7684\r\n }).then(function( a, b ) { \/\/ then \u80fd\u8fd4\u56de\u6570\u636e\u7ed9then 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)\r\n\u3000\u3000.always( function() { alert(\"\u5df2\u6267\u884c\uff01\");} );<\/pre>\n<p style=\"color: #111111;\">\uff0810\uff09deferred.progress() \/\u00a0deferred.notify()<\/p>\n<pre style=\"color: #111111;\">deferred.progress(function(e){  \/\/\u5b9a\u4e49\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\r\n   \/\/alert(e)\r\n})\r\ndeferred.notify('\u54c8\u54c8')  \/\/\u8c03\u7528\u6b64\u56de\u8c03\u51fd\u6570<\/pre>\n<p style=\"color: #111111;\">\u4e00\u4e2a\u663e\u793ainput\u586b\u8868\u7684\u8fdb\u5ea6\u6848\u4f8b<\/p>\n<p style=\"color: #111111;\">\u6848\u4f8b\u6548\u679c\uff1a<a href=\"https:\/\/sdeno.com\/wp-content\/uploads\/2016\/06\/ceshi.html\" target=\"_blank\">https:\/\/sdeno.com\/wp-content\/uploads\/2016\/06\/ceshi.html<\/a><\/p>\n<p style=\"color: #111111;\"><a href=\"http:\/\/www.ruanyifeng.com\/blog\/2011\/08\/a_detailed_explanation_of_jquery_deferred_object.html\">http:\/\/www.ruanyifeng.com\/blog\/2011\/08\/a_detailed_explanation_of_jquery_deferred_object.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u56de\u8c03 \u51fd\u6570 \u4e00\uff0c\u4ec0\u4e48\u662fdeferred\u5bf9\u8c61\uff1f \u5f00\u53d1\u7f51\u7ad9\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9047\u5230\u67d0\u4e9b\u8017\u65f6\u5f88\u957f\u7684javascript 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