老师看下是否正确？

来源：3-11 编程练习

weixin_慕前端6235132

2020-01-05 11:46:06

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

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