Escape characters for iOS special characters

All ASCII codes can be represented by a "\" plus a number (typically a 8 binary number). and C in the definition of some letters before the "\" to indicate the common ones can not display ASCII characters, such as \0,\t,\n, etc., is called the escape character, because the subsequent character, is not its original ASCII character meaning. All the escape characters and their corresponding meanings:

Escape character	Significance	ASCII code value (decimal)
\a	Bell (BEL)	007
\b	BACKSPACE (BS) to move the current position to the previous column	008
\f	Page Break (FF), moving the current position to the beginning of the next page	012
\ n	Line Break (LF), move the current position to the beginning of the next line	010
\ r	Enter (CR) to move the current position to the beginning of the bank	013
\ t	Horizontal tab (HT) (jumps to the next tab position)	009
\v	Vertical tabulation (VT)	11P
\\	Represents a backslash character ' \ '	092
\‘	Represents a single quotation mark (apostrophe) character	039
\"	Represents a double-quote character	034
\?	Represents a question mark	063
/	Null character (NULL)	000
\ooo	Any character represented by a 1 to 3-bit octal number	Three-bit octal
\xhh	Any character represented by 1 to 2 hexadecimal digits	Two-bit hexadecimal

Note: Differentiate, Slash: "/" with backslash: "\", not interchangeable here So when stitching special characters, you can use \ before special characters to add in the implementation of the character stitching

Escape characters for iOS special characters