<script>
    // json 数据转换
    var data = {
        name: '小明',
        age:200,
        fav:["code","eat","swim","read"],
        son:{
            name:"小小明",
            age:100,
        }
    };
    // console.log( data );
    // 把对象转换成 json 字符串
    var info = JSON.stringify(data);
    console.log(info)
    // 把 json 字符串转换成对象
    var data2 = JSON.parse(info);
    console.log(data2)
</script>