摘要：
在《Pragmatic Ajax A Web 2.0 Primer 》中偶然看到对readyStae状态的介绍，感觉这个介绍很实在，摘译如下：0: (Uninitialized) the send( ) method has not yet been invoked.1: (Loading) the send( ) method has been invoked, request in progress.2: (Loaded) the send( ) method has completed, entire response received.3: (Interactive) the resp 阅读全文
