从c#中的字符串末尾删除回车符和换行符
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Removing carriage return and new-line from the end of a string in c#
提问by Avik
How do I remove the carriage return character (\r)and the new line character(\n)from the end of a string?
如何从字符串的末尾删除回车符(\r)和换行符(\n)？
采纳答案by RichieHindle
This will trim off any combination of carriage returns and newlines from the end of s:
这将从 的末尾删除回车和换行符的任何组合s：
s = s.TrimEnd(new char[] { '\r', '\n' });
Edit: Or as JP kindly points out, you can spell that more succinctly as:
编辑：或者正如 JP 指出的那样，您可以更简洁地拼写为：
s = s.TrimEnd('\r', '\n');
回答by JP Alioto
This should work ...
这应该工作...
var tst = "12345\n\n\r\n\r\r";
var res = tst.TrimEnd( '\r', '\n' );
回答by Matthew Flaschen
If there's always a single CRLF, then:
如果总是有一个 CRLF，那么：
myString = myString.Substring(0, myString.Length - 2);
If it may or may not have it, then:
如果它可能有也可能没有，那么：
Regex re = new Regex("\r\n$");
re.Replace(myString, "");
Both of these (by design), will remove at most a single CRLF. Cache the regex for performance.
这两个（按设计）将最多删除一个 CRLF。缓存正则表达式以提高性能。
回答by Crash893
String temp = s.replace("\r\n","").trim();
sbeing the original string.
s作为原始字符串。
回答by Simon
For us VBers:
对于我们 VBers：
TrimEnd(New Char() {ControlChars.Cr, ControlChars.Lf})
回答by vnRock
string k = "This is my\r\nugly string. I want\r\nto change this. Please \r\n help!";
k = System.Text.RegularExpressions.Regex.Replace(k, @"\r\n+", " ");
回答by Pat
varName.replace(/[\r\n]/mg, '')
回答by user1585204
This was too easy -- for me I'm filtering out certain email items. I'm writing my own custom email junk filter. With \r and/or \n in the string it was wiping out all items instead of filtering.
这太简单了——对我来说，我正在过滤掉某些电子邮件项目。我正在编写自己的自定义电子邮件垃圾过滤器。使用 \r 和/或 \n 在字符串中，它会清除所有项目而不是过滤。
So, I just did filter = filter.Remove('\n') and filter = filter.Remove('\r'). I'm making my filter such that an end user can use Notepad to directly edit the file so there's no telling where these characters might embed themselves -- could be other than at the start or end of the string. So removing them all does it.
所以，我只是做了 filter = filter.Remove('\n') 和 filter = filter.Remove('\r')。我正在制作我的过滤器，以便最终用户可以使用记事本直接编辑文件，因此不知道这些字符可能嵌入在哪里——可能不是在字符串的开头或结尾。因此，将它们全部删除即可。
The other entries all work but Remove might be the easiest?
其他条目都有效，但 Remove 可能是最简单的？
I learned quite a bit more about Regex from this post -- pretty cool work with its use here.
我从这篇文章中学到了更多关于 Regex 的知识——在这里使用它非常酷。
回答by Alex Wiese
If you are using multiple platforms you are safer using this method.
如果您使用多个平台，则使用此方法会更安全。
value.TrimEnd(System.Environment.NewLine.ToCharArray());
It will account for different newline and carriage-return characters.
它将考虑不同的换行符和回车符。
回答by martinp999
s.TrimEnd();
The above is all I needed to remove '\r\n' from the end of my string.
以上是我从字符串末尾删除 '\r\n' 所需的全部内容。
The upvoted answer seems wrong to me. Firstly, it didn't work when I tried, secondly, if it did work I would expect that s.TrimEnd('\r', '\n') would only remove eithera '\r' or a '\n', so I'd have to run it over my string twice - once for when '\n' was at the end and the second time for when '\r' was at the end (now that the '\n' was removed).
赞成的答案对我来说似乎是错误的。首先，它不工作时，我试过了，其次，如果它没有工作，我会期望s.TrimEnd（“\ r”，“\ n”）将只删除或者一个“\ r”或“\ n” ，所以我必须在我的字符串上运行两次 - 一次是在 '\n' 结束时，第二次是在 '\r' 结束时（现在 '\n' 已被删除） .
