默认上传图片的时候，对应的html代码是这样的
<img src="/ueditor/php/upload/image/20140722/1406040023503428.jpg" alt="1406040023503428.jpg"/> <img src="/ueditor/p
<img src="/ueditor/php/upload/image/20140722/1406040023503428.jpg" alt="1406040023503428.jpg"/> <img src="/ueditor/p
