What's the difference between this characters? [duplicate]

Answer 1

\n - Line Feed - 0x0A - 10 decimal - LF

\r - Carriage Return - 0X0D - 13 decimal - CR

\t - tab - 0x09 - 9 decimal - ht (horizontal tab)

For detailed hex, decimal values refer: http://web.cs.mun.ca/~michael/c/ascii-table.html

CR+LF: DEC TOPS-10, RT-11 and most other early non-Unix and non-IBM OSes, CP/M, MP/M, DOS (MS-DOS, PC-DOS, etc.), Atari TOS, OS/2, Microsoft Windows, Symbian OS, Palm OS

LF+CR: Acorn BBC spooled text output.

CR: Commodore 8-bit machines, Acorn BBC, TRS-80, Apple II family, Mac OS up to version 9 and OS-9

LF: Multics, Unix and Unix-like systems (GNU/Linux, AIX, Xenix, Mac OS X, FreeBSD, etc.), BeOS, Amiga, RISC OS, and others. However, in tty 'raw mode', CR+LF is used for output and CR is used for input.

RS: QNX pre-POSIX implementation.

For more details on \n, \r \t refer:

http://en.wikipedia.org/wiki/Newline

http://en.wikipedia.org/wiki/Carriage_return

http://en.wikipedia.org/wiki/Horizontal_tab

To use \n \r \t in html for you can use the below codes:

\n in html == 
 or 
 linux, Unix and Mac OS X

\r in html == 
 or 
 Mac(classic)

\r\n in html == 
 or 
 Windows

\t in html == 	 or