摘要：
引言在那篇经典的关于jQuery1.5中Deferred使用方法介绍的文章中（译文见这里），有下面一段描述：$.ajax() returns an object packed with other deferred-related methods. I discussed promise(), but you’ll also find then(), success(), error(), and a host of others. You don’t have access to the complete deferred object, though; only the promise, 阅读全文