jquery $.each 用法

1.  function getData(msg){
2.         if(msg == undefined){
3.             msg = '';   
4.         }
5.         $.post("get.php",{"msg":msg},function(data){
6.             //var myjson = eval("("+data+")");
7.             if(data){
8.                 var chatcontent = '';
9.                 var obj = eval('('+data+')');                                                        #obj为对象
   
10.                 $.each(obj,function(key,val){
11.                     chatcontent += "<div class='username'>"+val['nick']+" 说:</div>";          #遍历对象
    
12.                     chatcontent += "<div class='content'>"+val['con']+"</div>";
13.                 })
14.                 $("#chatshow").html(chatcontent);                                          
    
15.             }
16.             
17.             getData();  
18.         })  
19.     }

      

     # $.each()   jquery中用于遍历对象