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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta http-equiv="X-UA-Compatible" content="IE=edge">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Document</title>
- </head>
- <body>
- <script>
- //基本数据类型： number string boolean null undefined
- //引用数据类型： object
- var a = 123
- var b = a
- a = 111
- console.log(a,b)
- var c = {
- name: 'zs',
- age: 20
- }
- var d = c
- c.name = 'lisi'
- console.log(c,d)
- var h = [0,1,2,3,4]
- var z = h
- h[0] = '哈哈哈哈'
- console.log(h,z)
- </script>
- </body>
- </html>
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