老师这样可以么

来源：3-11 编程练习

百万何必当真

2018-11-13 14:56:55

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>数据类型之NaN</title>
</head>
<body>
    <script>
//补充代码
var p1=null,p2=10,p3="我是字符串",p4="10",p5=undefined;
console.log(isNaN(p1));
console.log(isNaN(p2));
console.log(isNaN(p3));
console.log(isNaN(p4));
console.log(isNaN(p5));
</script>
</body>
</html>

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