在开发的过程中，对json的接触基本是前端页面搭建完成后，对后台数据的请求。如果接口尚未提供，一般情况下会先按规定的要求写好需要的json模拟出请求的后台数据。json的格式有很多种，关注的主体是data里面的内容。

$(function(){

//转换为字符串1

var data = [

{name: "王尼玛", sex:1, age: 30},

{name: "王尼美", sex:0, age: 20},

{name: "王大锤", sex:1, age: 30},

{name: "23", sex:1, age: 30}

];

var str_json = JSON.stringify(data, function (k, v) {

if (k === "sex") {

return ["女", "男"][v];

}

return v;

});

console.log(str_json);

//  [{"name":"王尼玛","sex":"男","age":30},{"name":"王尼美","sex":"女","age":20},{"name":"王大锤","sex":"男","age":30},{"name":"23","sex":"男","age":30}]

//转换为字符串2

var data = [

{name: "王尼玛", sex:1, age: 30},

{name: "王尼美", sex:0, age: 20},

{name: "王大锤", sex:1, age: 30}

];

var str_json = JSON.stringify(data, ["name", "sex"]);

console.log(str_json);

//  [{"name":"王尼玛","sex":1},{"name":"王尼美","sex":0},{"name":"王大锤","sex":1}]

 

})

　　不常用，但是需要记住的这几种用法。