.NET正则表达式

Question

How would I write a regular expression (C#) which will check a given string to see if any of its characters are characters OTHER than the following:

az
AZ
Æ æ Å å Ø ø - '

Answer 1

new Regex("[^a-zA-ZÆæÅåØø'-]")

[]创建一个字符类，然后^指定否定，因此如果一个字符不是列出的那个字符，则该字符与该字符匹配。

Answer 2

You can use character grouping in combination with the negation operator to achieve this.

You also need to escape the - character (and potentially the ') using a \\

Your final expression would read:

[^a-zA-ZÆæÅåØø\\-\\']*