前端页面之间的通信

1. 监听localstorage的变化

window.onload = function() {  
       var oDiv = document.getElementById('div');  
   　 window.onstorage = function(ev){  
          var json = JSON.parse(localStorage[ev.key]);  
                       
       　　oDiv.style.left = json.left + "px";  
          oDiv.style.top = json.top + "px";  
      }  
   }  

2.实用插件lsbridge/storage-emitter,也是基于localstrage实现的插件