如何使循环等待异步调用成功后才能继续

请不要使用“ for循环”。而是在成功回调中增加计数器并重新触发自身。像下面这样。

function mySyncFunction (counter, totRecords){   if(counter === undefined)      counter = 0;      if(counter >=totRecords) return;   var defectssurl = 'https://test.com/mywcf.svc/GetListAllPaging?id=' + counter;   Ext.Ajax.request({     url:defectssurl,        // snip // your pre here     success: function (resp) {        // snip // your pre here        counter++;        mySyncFunction(counter, totRecords);     }     // snip // your pre here});