钉钉预览禁止编辑

参考这个试试可否

<input type="file" id="userImg" name="userImg" style="display: none;"/>
<div id="imgdiv">
	<img id="imgPreview" style="cursor: pointer;max-width:200px;max-height: 200px;" src="${ctx}/assets/hplus/img/upimg_btn.png" />
</div>

//图片预览
     new uploadPreview({
        UpBtn : "userImg",
        DivShow : "imgdiv",
        ImgShow : "imgPreview",
        ImgType:["jpg","png","jpeg","gif","bmp"]
    });
    
    
     /**
      * 点击显示上传框
      */
     $("#imgPreview").click(function(){
         $("#userImg").click();
 
     });