html/1.html at main · Mir237/html · GitHub

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>Document</title>
    </head>
    <style>
        body{
            background-image: linear-gradient(to top, #fbc2eb 0%, #a6c1ee 100%) ;
            background-size: 100vmax 100vmax;
        }
    </style>
    <body>

    </body>
    <script>
        //创建对象
        let str='123Heloodjdskrfs'
        let num=124434123
        let bool1=true
        let bool2=false

        //修改对象
        str='修改后的文字'
        num=888
        console.log(str,num,bool1,bool2)
        console.log("Hello World!");

        //创建对象组删除对象
        let obj={
            name:'测试',
            age:18,
            bool:true
        }
        // delete obj.age
        console.log(obj)
        console.log(obj.name,obj.age,obj.bool)

        //创建数组与循环
        let arr=[1,2,3,4,5,6,7,8,9,10]
        arr[1]=100
        arr.push(1000)
        arr.unshift(0)
        console.log(arr)
        for(let i=0;i<arr.length;i++){
            console.log(arr[i])
        }
        //函数
        function add(a,b){
            console.log('这是一个函数')
            // console.log(a+b)
            return a+b
        }
        add()
        add()
        add(1,5)
        console.log(add(1,5))
    </script>
</html>