How to remove the C # Strings in space?

You probably know that you can use String.Trim The method of removing the tail and head space string, not fortunately This Trim The method can not remove the intermediate space, such as a string:

string  text  =   "   My test\nstring\r\n is\t quite long   " ;
string  trim  =  text.Trim();

The 'trim' string will be:

" My test\nstring\r\n is\t quite long "   ( 31  characters)

Another approach is to use String.Replace method, but this requires you to remove individual spaces by calling multiple methods:

string  trim  =  text.Replace(  "   " ,  ""  );
trim  =  trim.Replace(  " \r " ,  ""  );
trim  =  trim.Replace(  " \n " ,  ""  );
trim  =  trim.Replace(  " \t " ,  ""  );

The best method here is to use regular expressions. You can use Regex.Replace method, it will replace all occurrences of the specified character. In this example, use regular expression matching character "\ s", it will match any spaces included in this string in space, tab characters, line breaks, and new line (newline).

string  trim  =  Regex.Replace( text,  @" \s " ,  ""  );

The 'trim' string will be:

" Myteststringisquitelong "   ( 23  characters)

Reproduced in: https: //www.cnblogs.com/yangjie5188/archive/2008/04/11/1148460.html