请老师检查

来源：2-25 编程练习

KangarooL

2021-03-27 19:47:59

相关代码：

<!DOCTYPE html>
<html>

<head lang="en">
    <meta charset="UTF-8">
    <title>逻辑操作符</title>
</head>

<body>
    <script>
        //补充代码
        var x = NaN, y = undefined, z = 1;
        var m = 1, n = "0", j = 33;
        var a = !(!undefined), b = !0;

        console.log(x || y || z);
        console.log(m || n || j);
        console.log(a || b);
    </script>
</body>

</html>