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来源：2-7 编程练习

菜鸟瑞

2021-06-25 15:02:25

相关代码：

<!DOCTYPE html>

<html>

<head>

    <meta charset="utf-8">

    <title>Document</title>

</head>

<body>

    <script>

        let result = 0;
        const add = (...args) => {
            // for (var i = 0; i < args.length; i++) {
            //     result += args[i]
            // }
            // return result / args.length;
            const sum=args.reduce(function(acl,val){
                return acl+val;
            })
            return sum/args.length
        }
        console.log(add(1, 2, 3, 4));


    </script>

</body>

</html>