Python 字符串删除空白问题 | 替换｜分割｜整合｜

Python 字符串删除空白问题

• var.strip(string)
  – 用来删除字符串开头和结尾的空格

name = ' python'
print(name)
print(name.strip())

>> python
>>python

• var.lstrip(string)
  – 去掉开头的空格

name = ' python'
print(name)
print(name.lstrip())

>> python
>>python

• var.rstrip(string)
  – 去掉结尾的空格

name = 'python '
print(len(name))
print(len(name.rstrip()))

>>7
>>6

• var.replace( ‘a’ , ‘b’ )
  – 将a全部替换成b

name = ' pyt hon '
print(name)
print(name.replace(' ',''))

>> pyt hon 
>>python

• var1 = var2.split()
  – 得到var2分割得到的列表var1
• var3 = ‘a’.join(var1)
  – 将列表var1的元素用’a’来连接得到新字符串 var3

name = ' pyt hon '
N = name.split()
print(N)
M = ''.join(N)
print(M)

>>['pyt', 'hon']
>>python