
 json转成string[需要引用json2.js文件]: 
 代码如下: 
var arr=[{id:'id',name:'Spring'},{id:'id2',name:'Jane'}]; 
var str=JSON.stringify(arr);  
结果:"[{id:'id',name:'Spring'},{id:'id2',name:'Jane'}]" 
string转化为json: 
 代码如下: 
var str="[{id:'id',name:'Spring'},{id:'id2',name:'Jane'}]"; 
var json=$.parseJSON(str); 
 
结果:[{id:'id',name:'Spring'},{id:'id2',name:'Jane'}]