主要是用到了ajaxfileupload.js 修正： 1. IE9,IE10等IE高版本浏览器下出错的情况 2. 无法识别服务器端返回的json ( 原js只能识别手动拼接的json ) - Is mainly used in the ajaxfileupload.js amended: 1. IE9, IE10 and other circumstances under high version of IE browser error 2. does not recognize the