微信网页中点击图片放大

 /*调用微信预览图片的方法*/
    function funcReadImgInfo(){
    var imgs = [];
        var imgObj = $(".userImg img");//这里改成相应的对象
    for(var i=0; i<imgObj.length; i++){
         imgs.push(imgObj.eq(i).attr(‘src‘));
         imgObj.eq(i).click(function(){
              var nowImgurl = $(this).attr(‘src‘);
                  WeixinJSBridge.invoke("imagePreview",{
               "urls":imgs,
               "current":nowImgurl
          });
             });
         }
    }