27、判断成绩案例

2024-10-04 / 0 评论 / 3 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>
        // 1、用户输入
        let score = +prompt('请输入成绩：')
        // 2、判断输出 
        if (score >= 90 ) {
            alert('成绩优秀')
        } else if (score >= 70) {
            alert('成绩良好')
        }else if (score >=60) {
            alert('成绩及格')
        }else {
            alert('成绩不及格')
        }
    </script>
</body>
</html>

JavaScript