如何使用C＃在正则表达式中匹配“

Question

I want to match " inside a string but I am not able to add " to the list

Current my regular expression is

Regex.Replace(str, @"[\\/:*?<>|]","", RegexOptions.Compiled);

I also want to add "

\\" is not accepted.

Answer 1

You need to escape " to "" .

Use "" with verbatim strings..

ie @"[\\\\/:*?<>|""]"

OR

Just use \\" without verbatim strings.

ie "[\\\\/:*?<>|\\"]"

---

A character that is preceded with forward slash \\ is treated as a special character ..

For example.. \\t , \\n , \\r are special characters..

But \\e is not a special character since e has no special meaning..So,compiler would show you compile time error Unrecognized escape sequence

In order to treat characters preceded by \\ literally(ie to make it non special character) we use verbatim string ie @""

Answer 2

You must use \\ to escape it.

For example: \\"