效果圖
                        使用方法:
1.下載文件后,把Magnifier整個文件放在你的資源目錄下
2.放大鏡css文件可以在Magnifier.js中修改(默認是自動加載的可以不理會)
                        
layui.link('../Magnifier/css/MangniFier.css'); 3.插件定義方法有所改變,請悉知,如下:
                        
      layui.config({
          base: '../Magnifier/' //假設這是你存放拓展模塊的根目錄
      }).extend({
          Magnifier: 'js/Magnifier'
          ,Event:'js/Event'  //你存放插件的目錄
      });
      layui.use(['layer', 'form','Event','Magnifier'], function(){
          var layer =layui.layer
              ,evt =new layui.Event()
              ,Magnifier =new layui.Magnifier(evt,{
              largeWrapper: document.getElementById('gallery-preview'),<!--預覽圖容器(必須)-->
          });
          Magnifier.attach({
              thumb: '#lnk_thumb',//需要使用放大鏡的圖片元素(#id || .class)        
              zoom:3,//縮放比例
          });
      });                        配置信息
                        
                        
 thumb(string):ID or class of the image element to magnify preceded by "#" or "."
 large(string):large image URL
 largeWrapper(string):ID of the element where large image will be appended
 zoom(int):initial
                            zoom level
 zoomable(bool):enable zoom in / out using mouse wheel
 onthumbenter(callback):function to call on thumbnail enter event
 onthumbmove(callback):function to call on thumbnail move event
 onthumbleave(callback):function
                            to call on thumbnail leave event
 onzoom(callback):function to call on zoom event
具體可查看官方Magnifier