21、一元运算符

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>
        // let num = 10
        // num = num + 1
        // num += 1
        // 1.前置自增
        // let i = 1
        // ++i
        // console.log(i)
         // 1.后缀自增
        //  let i = 1
        // i++
        // console.log(i)
        
        let i = 1
        console.log(i++ + ++i + i)

    </script>
</body>
</html>

JavaScript