60、实参可以是变量

2024-10-04 / 0 评论 / 4 阅读 / 正在检测是否收录...

10/04

<!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>
        // 求n~m的累加和
        function getSum(n = 0,m = 0){
            let sum = 0
            for(let i = n; i <= m; i++){
                sum += i
            }
            console.log(sum)
        }
        // getSum()
        let num1 = +prompt('请输入起始值：')
        let num2 = +prompt('请输入结束值：')
        // 调用函数
        getSum(num1,num2) //实参可以是变量
    </script>
</body>
</html>

JavaScript