javascript json语句 与 js语句的互转

 //var data = "weihexin"
 //var data = ["weihexin", 1]
 var data = {name:"weihexin", id:1}

 var json = JSON.stringify(data);//返回 json string
 console.log(json);//{"name":"weihexin","id":1}

 var _data = JSON.parse(json);//返回 js Object
 console.log(_data);//{name: "weihexin", id: 1}