jQuery PHP upload_multiple AJAX上传带预览功能，在火狐下完美运行，submit_form_process.php为上传代码。本Ajax上传程序利用multiple="multiple"属性实现添加多图功能，height:0 width:0 z-index: -1 是为了隐藏input，因为Chrome下不能使用display:none，否则无法添加文件，点击图片时则点击添加文件按钮。在jquery中创建FormData对象，为FormData对象添加数据，显示加载图片，第一个feedback数据直接append，其他的用before第1个（ .eq(0).before() ）放至最前面。-JQuery PHP upload_multiple AJAX upload preview function, perfect running in firefox, submit_form_process. PHP to upload code. Upload the Ajax application using multiple = \"multiple\" attribute to add multiple functions, height: 0　Width: 0　Z- index:- 1　Is to hide the input, because the Chrome cannot use display: none, otherwise can t add files, click on the image, click on the add files button. Create FormData object in jquery, add data for FormData object, the image display, the first feedback append data directly, other use before first (. Eq. (0) before (), put to the front.