What is "\n"? Any difference from "\r"?

I know "\r" indicates a sentence break. Then what about "\n"

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

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

HtmlText = HtmlText.Replace("\r\r","");

HtmlText = HtmlText.Replace("\r"," ");

In the above line, since "\r" is to changed into " ", why should not directly change "\n" and "\r\n"directly into " "

Philippe Cand

if you are asking why it does not automatically convert to , its because its not an HTML language :-)

it shows the raw representation of the command

i believe it may change it as \r is a carriage return, and a carriage return in html must be 

\n is a newline, used for .NET/C++
Svitlana

\n is newline

\r\n I believe is carriage return (this also applies for Environment.NewLine)

I also believe Environment.NewLine is probably the better approach, to make sure it is a newline
Tammt
The 1st statement replaces a DOS end-of-line to a \r, the 2nd replaces a Unix end-of-line to a \r. Now he can detect an empty line and replace it with a paragraph. Directly replacing would allow that to work...
John Sobernheim

Thank you all very much.

Very grateful for your kindness!
lex23456
\r is carriage return ( in DOS mode, used to bring cursor position to the beginning of a line )
\n is new line

in Windows, new line is written as "\r\n" in a text file
in Linux, new line is written as "\n" in a text file

The above code is to ensure proper replacement whether system uses "\r" only, "\n" only or both "\r\n" to represent new line.

I think just use HtmlText.Replace ( "\n", " " ) will work ( leaving "\r" as it is ), since in all system new line will always have "\n" character CMIIMW
Rodrigo B. de Oliveira
why should not change "\n" and "\r\n"directly into " "
What is "\n"? Any difference from "\r"?