An escape sequence contains more than one character but functions as a single character because there is no letter to textually represent the escaped character. The compiler converts the sequence of characters into a single escaped character in the compiled program. For example, the compiler converts \n in the source code into a single character (code 10), which represents the line feed in the compiled program.

The following is a list of defined C# escape sequences with corresponding representations:

• \’ Single quotation mark used for character literals
• \” Double quotation mark used for string literals
• \\ Backslash used for file path
• \? Question mark
• \a Alert
• \b Backspace
• \f Form feed
• \n New line
• \r Carriage return
• \t Horizontal tab
• \v Vertical tab
• \0 Null
• \u Unicode escape sequence for a character with a hex value
• \x Unicode hexadecimal escape sequence - similar to \u but with variable length
• \U Unicode escape sequence used for surrogate pairs