C＃如何Regex.Replace＆QUOT; \ r \ N'QUOT; （实际字符，而不是换行） [英] C# how to Regex.Replace "\r\n" (the actual characters, not the line break)

问题描述

我有说我清理使用几个C＃经常EX pressions一些可怕的文字。已经难倒我的一个问题是，有许多的\ r \ N'字符串文本，实际字符不换行。

I've got some horrible text that I'm cleaning up using several c# regular expressions. One issue that has me stumped is there are a number of '\r\n' strings in the text, the actual characters not the line breaks.

我已经试过：

content = Regex.Replace(content, "\\r\\n", "");

和

content = Regex.Replace(content, "\r\n", "");

但都没有工作。最后，我不得不用：

but neither of them work. In the end I had to use:

content = content.Replace("\\r\\n", "\r\n");

要拿到项目完成，但不能够做一个正则表达式让我很烦。

to get the project finished, but not being able to do it in a regex annoys me.

推荐答案

\ r 和 \ñ有特殊含义的正则表达式，也因此反斜杠需要转义。然后，将这些反斜杠需要转义为C＃字符串，导致

\r, and \n have special meaning in Regex, too, so the backslash needs to be escaped. Then, these backslashes needs to be escaped for the c# string, leading to

content = Regex.Replace(content, "\\\\r\\\\n", ""); 

或

content = Regex.Replace(content, @"\\r\\n", ""); 

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