python escape character \

Escape character \ can escape a lot of character, such as \ n for newline, \ t for a tab character \ itself have escaped, so the character is represented \\ \.

>>>print('I\'m ok.')
I'm ok.
>>> print('I\'m learning\nPython.')
I'm learning
Python.
>>> print('\\\n\\')
\
\

If the string there are many characters need to be escaped, we need to add a lot \, in order to simplify, Python also allows r''representation ''default does not escape the string inside, you can see for yourself:

>>> print('\\\t\\')
\       \
>>> print(r'\\\t\\')
\\\t\\

If the internal string has a lot of line breaks, with \nwrite one line is not good reading, in order to simplify, Python allows '''...'''format represents a number of lines, you can see for yourself:

>>> print('''line1
... line2
... line3''')
line1
line2
line3

Escape character	significance	ASCII value (decimal)
\a	Bell (BEL)	007
\b	Backspace (BS), the current position to the previous column	008
\f	Feed (FF), the current position to the beginning of the page	012
\n	Line feed (LF), the current position to the beginning of the next line	010
\r	A carriage return (CR), the current position to the beginning of the line	013
\t	Horizontal tab (the HT) (TAB jumps to the next position)	009
\ v	Vertical tabulation (VT)	011
\\	Represent a backslash character '\'	092
\'	On behalf of a single quote (apostrophe) character	039
\"	It represents a double quote character	034
\?	On behalf of a question mark	063
\0	Null character (NUL)	000
\ddd	Any character 1-3 octal number represented	Three octal
\ socialization	Hexadecimal character represents any	Hex