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@@ -0,0 +1,49 @@
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+<!DOCTYPE html>
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+<html lang="en">
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+
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+<head>
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+ <meta charset="UTF-8">
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+ <meta http-equiv="X-UA-Compatible" content="IE=edge">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <title>Document</title>
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+</head>
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+
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+<body>
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+ <script>
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+ // var person = {
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+ // name: 'zs',
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+ // age: 18,
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+ // school: {
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+ // num: 10000,
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+ // name: 'qinghua'
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+ // }
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+ // }
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+ // console.log(person.age)
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+
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+ var computer = new Object();
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+ //对象.属性名 = 属性值
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+ computer.cpu = 'i9-13'
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+ computer.xianka = '4090'
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+ computer.neicun = 'sanxing16G'
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+ console.log(computer)
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+
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+ var person = new Array();
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+ person[0] = 18;
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+ person[1] = "123kg";
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+ person[2] = "170cm";
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+ person[3] = 2;
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+
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+ console.log(person)
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+
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+ console.log(typeof computer) //数组还是对象 数据类型都是object
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+ console.log(typeof person)
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+
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+ var x = new String(); // 把 x 声明为 String 对象
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+ var y = new Number(); // 把 y 声明为 Number 对象
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+ var z = new Boolean(); // 把 z 声明为 Boolean 对象
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+ x = '123'
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+ // 请避免字符串、数值或逻辑对象。他们会增加代码的复杂性并降低执行速度
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+ </script>
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+</body>
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+
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+</html>
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zsydgithub