26、闰年案例

yu
yu
2024-10-04 / 0 评论 / 1 阅读 / 正在检测是否收录...
<!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 year = +prompt('请输入年份:')
        // 2、判断输出
        if (year % 4 ===0 && year % 100 !==0 || year % 400 ===0){
            alert(`${year}年是闰年`)
        }else{
            alert(`${year}年是平年`) 
        }
    </script>
</body>
</html>
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