jquery遍历json的几种方法

for循环：

 1 <script>
 2 var obj = {
 3         "status":1,
 4         "bkmsg":"\u6210\u529f",
 5         "bkdata":["\u5415\u5c1a\u5fd7","1387580400","\u6dfb\u52a0\u8bb0\u5f55"]
 6     }
 7    // console.log(obj.length);
 8     if (obj.status == 1) {
 9         for (var i = 0; i < obj.bkdata.length; i++) {
10             console.log(obj.bkdata[i]);
11         };
12     }else{
13         alert("数据有误~");
14     };
15 </script> 

for in 循环：

 1 <script>
 2 var obj = {
 3         "status":1,
 4         "bkmsg":"\u6210\u529f",
 5         "bkdata":["\u5415\u5c1a\u5fd7","1387580400","\u6dfb\u52a0\u8bb0\u5f55"]
 6     }
 7  //for in循环
 8     for(x in obj.bkdata){
 9         //x表示是下标，来指定变量，指定的变量可以是数组元素，也可以是对象的属性。
10         console.log(obj.bkdata[x]);
11     }
12 </script>

元素 each方法

 1 <script>
 2 var obj = {
 3         "status":1,
 4         "bkmsg":"\u6210\u529f",
 5         "bkdata":["\u5415\u5c1a\u5fd7","1387580400","\u6dfb\u52a0\u8bb0\u5f55"]
 6     }
 7
 8 if (obj.status == 1) {
 9         $(obj.bkdata).each(function(index,item){
10             //index指下标
11             //item指代对应元素内容
12             //this指代每一个元素对象
13             //console.log(obj.bkdata[index]);
14             console.log(item);
15             //console.log($(this));
16         });
17     }else{
18         alert("数据有误~");
19     };
20 </script> 

jquery each方法

 1 <script>
 2 var obj = {
 3         "status":1,
 4         "bkmsg":"\u6210\u529f",
 5         "bkdata":["\u5415\u5c1a\u5fd7","1387580400","\u6dfb\u52a0\u8bb0\u5f55"]
 6     }
 7
 8 $.each( obj.bkdata, function(index,item){
 9         console.log(item);
10     });
11 </script>