escape squence 

Escape sequence Hex value in ASCII  Character represented

\a  07  Alert (Beep, Bell) (added in C89)[1]

\b  08  Backspace

\enote 1    1B  Escape character

\f  0C  Formfeed Page Break

\n  0A  Newline (Line Feed); see notes below

\r  0D  Carriage Return

\t  09  Horizontal Tab

\v  0B  Vertical Tab

\\  5C  Backslash

\'  27  Apostrophe or single quotation mark

\"  22  Double quotation mark

\?  3F  Question mark (used to avoid trigraphs)

\nnnnote 2  any The byte whose numerical value is given by nnn interpreted as an octal number

\xhh…   any The byte whose numerical value is given by hh… interpreted as a hexadecimal number

\uhhhhnote 3    none    Unicode code point below 10000 hexadecimal

\Uhhhhhhhhnote 4    none    Unicode code point where h is a hexadecimal digit

​

                                                        //code by gokul aakash

Here are some commonly used escape sequences in C++:

​

    \\ – Backslash: Represents a single backslash () in the output.

    \' – Single Quote: Represents a single quote (‘) character.

    \" – Double Quote: Represents a double quote (“) character.

    \n – Newline: Inserts a line break.

    \t – Horizontal Tab: Inserts a horizontal tab space.

    \r – Carriage Return: Moves the cursor to the beginning of the current line.

    \b – Backspace: Moves the cursor one position back.

    \f – Form Feed: Advances the cursor to the next page or form feed.

    \v – Vertical Tab: Inserts a vertical tab space.

    \a – Alert: Produces a system alert or beep sound.

    \? – Question Mark: Represents a question mark (?) character.

    \ooo – Octal Number: Represents a character using its octal value, where ‘ooo’ is a 1- to 3-digit octal number.

    \xhh – Hexadecimal Number: Represents a character using its hexadecimal value, where ‘hh’ is a 1- to 2-digit hexadecimal number.

​