字符串在Python中如何表达出来

python

对于字符串,最通俗易懂理解的字面意思是一串字符。那么,在Python中如何表达字符串呢?接下来本文为大家详细讲解:

1.使用单引号扩起来字符串

>>> 'my python lession'       #以单引号将字符串扩起来

'my python lession'

>>> a = 'my python lession'  

>>> print(a)

my python lession

2.使用双引号将字符串扩起来

>>> "my python lession"    #使用双引号将字符串扩起来

'my python lession'

>>> a = "my python lession"

>>> print(a)

my python lession

值得说明的是,被单引号(single quote)或双引号(double quotes)包围的字符串,这两者的作用是一样的:

3.当想要输出单引号或者双引号时(将单引号,双引号作为普通字符输出),通过 进行转义

>>> 'python 'escape'          

"python 'escape"

>>> a = 'python 'escape'

>>> print(a)

python 'escape     #通过反斜线将单引号进行转移,不在乎最外层的是单引号还是双引号,反正是中间是字符串,有就将后面的单引号,双引号进行转义

>>>

>>> 'python " escape'

'python " escape'

>>> a = 'python " escape'

>>> print(a)

python " escape

>>>

>>> "python ' escape"

"python ' escape"

>>> a = "python ' escape"

>>> print(a)

python ' escape

>>>

>>> "python " escape"

'python " escape'

>>> a = "python " escape"

>>> print(a)

python " escape

4.通过单引号,双引号混合的方式输出单引号,双引号

>>> '"double quote"'    #单引号中,使用双引号,直接将双引号输出

'"double quote"'

>>> a = '"double quote"'

>>> print(a)

"double quote"

>>>

>>> "'single quote'"     #双引号中,使用单引号,将单引号输出

"'single quote'"

>>> a = "'single quote'"

>>> print(a)

'single quote'

>>>

>>> ""double""   #双引号中直接输出双引号报错

SyntaxError: invalid syntax

>>> ""double""  #双引号中直接输出双引号报错,但是将其中的双引号通过反斜线进行转义就可以了

'"double"'

>>> a = ""double""

>>> print(a)

"double"

>>>

>>> ''single''  #单引号中输出单引号字符报错,加上转义字符就可以了。

SyntaxError: invalid syntax

>>> ''single''

"'single'"

>>> a = ''single''

>>> print(a)

'single'

>>> '"My python', lession'  #单引号中输出双引号可以,如有单引号,必须进行转义

SyntaxError: EOL while scanning string literal

>>> '"My python', lession'

'"My python', lession'

>>> a = '"My python', lession'

>>> print(a)

"My python', lession

学会了字符串在Python中的表达方式,在下篇中我们继续学习,让字符串在Python中拼接起来。

以上是 字符串在Python中如何表达出来 的全部内容, 来源链接: utcz.com/z/529665.html

回到顶部