How to remove all spaces from a string in python

Python method to remove all spaces in a string: 1. Use the strip method to remove spaces at the beginning or end of the string; 2. Use the replace method to remove spaces at the end of the string; 3. Use the join method and the split method to remove All spaces.

The operating environment of this article: Windows 7 system, python version 3.5, DELL G3 computer.

1: strip() method, remove the spaces at the beginning or end of the string

>>> a = " a b c "
>>> a.strip()
'a b c'

2: lstrip() method, remove the spaces at the beginning of the string

>>> a = " a b c "
>>> a.lstrip()
'a b c '

3: rstrip() method, remove the spaces at the end of the string

>>> a = " a b c "
>>> a.rstrip()
' a b c'

4: replace() method, you can remove all spaces

# replace主要用于字符串的替换replace(old, new, count)
>>> a = " a b c "
>>> a.replace(" ", "")
'abc'

5: join() method split() method, you can remove all Space

# join为字符字符串合成传入一个字符串列表，split用于字符串分割可以按规则进行分割
>>> a = " a b c "
>>> b = a.split()  # 字符串按空格分割成列表
>>> b ['a', 'b', 'c']
>>> c = "".join(b) # 使用一个空字符串合成列表内容生成新的字符串
>>> c 'abc'
 
# 快捷用法
>>> a = " a b c "
>>> "".join(a.split())
'abc'

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