摘要： 大家先看一段简单的jquery ajax 返回值的js代码function getReturnAjax{ $.ajax({ type:"POST",http://www.cnblogs.com/wlmemail/admin/%22ajax/userexist.aspx", data:"username="+vusername.value, success:function(msg){ if(msg=="ok"){ showtipex(vusername.id,"<img src='images/ok. 阅读全文