ajax文件上传
这是昨天在应用开发时用到的一款ajax图片上传功能了，方法很简单的就是把文件利用js给iframe来直接上专，如果上传文件成功返回1,再用js判断是否上传成功如果是就输出图片并显示预览效果。
这是昨天在应用开发时用到的一款ajax图片上传功能了，方法很简单的就是把文件利用js给iframe来直接上专，如果上传文件成功返回1,再用js判断是否上传成功如果是就输出图片并显示预览效果。
ajax
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