There are three kinds of escape sequences: simple, octal, and hexadecimal. Escape sequences may be any of the following values:
Escape Sequence | Meaning
----- | -----
\a | Bell (alert)
\b | Backspace
\f | Form feed
\n | New line
\r | Carriage return
\t | Horizontal tab
\v | Vertical tab
\' | Single quotation mark
\" | Double quotation mark
\\\\ | Backslash
\? | Literal question mark
\ooo | ASCII character in octal notation
\xhh | ASCII character in hexadecimal notation
\xhhhh | Unicode character in hexadecimal notation if this escape sequence is used in a wide-character constant or a Unicode string literal.