单引号和三引号引起来的变量有什么区别
时间: 2023-07-30 19:09:01 浏览: 36
在 Python 中,单引号(')和双引号(")用于创建字符串。而三引号(''' 或 """)也可以用于创建字符串,通常用于多行字符串的表示。
使用单引号或双引号引起来的字符串中可以包含三引号,反之亦然。例如:
```python
s1 = "This is a string with ''' three quotes ''' inside."
s2 = 'This is a string with """ three quotes """ inside.'
s3 = '''This is a string with ' single quotes ' and " double quotes " inside.'''
```
这些字符串的输出分别为:
```
This is a string with ''' three quotes ''' inside.
This is a string with """ three quotes """ inside.
This is a string with ' single quotes ' and " double quotes " inside.
```
使用三引号引起来的字符串可以跨越多行,而且可以包含单引号和双引号,不需要使用转义字符。例如:
```python
s4 = '''This is a string
with multiple lines
and 'single quotes' and "double quotes".'''
```
这个字符串的输出为:
```
This is a string
with multiple lines
and 'single quotes' and "double quotes".
```
因此,使用单引号或双引号引起来的字符串与使用三引号引起来的字符串在包含单引号和双引号的情况下没有本质上的区别,但是三引号字符串可以更方便地表示跨越多行的字符串。