JS Object数据类型与json序列化 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>、
    <script>
        // 方法1
        var obj = new  Object();
        obj.name = "huchangxi"
        obj.age = 23
        console.log(obj.name) // huchangxi
        console.log(obj.age) // 23

        // 方法2
        var name = "huchangxi"
        var obj2 = {
            name: "huchangxi",
            age: "22"
        }
        obj2.name = "xxx"
        console.log(obj2) // {name: 'xxx', age: '22'}

        var attr = "age"
        console.log(obj2) // {name: 'xxx', age: '22'}
        console.log(obj2.name) // xxx
        console.log(obj2["name"]) // xxx
        console.log(obj2.age) // 22
        console.log(obj2["age"]) // 22
        console.log(obj2[attr]) // 22

        for (var k in obj2){
            console.log(k,obj2[k]) // name xxx age 22
        }

        // 序列化方法： JSON.stringify()
        var jsonData = JSON.stringify(obj2)

        // 反序列化方法： JSON.parse()
        JSON.parse(jsonData)



    </script>
</head>
<body>
<h1>welcome to JS!</h1>
</body>
</html>

 

posted @ 2022-06-04 19:58  呼长喜  阅读(265)  评论(0)    收藏  举报