Python字符串 |条（）

Python的strip() 方法内置函数用于从字符串中删除所有前导和尾随空格。

Syntax :string.strip([chars])

Parameter:

chars(optional): Character or a set of characters, that needs to be removed from the string.

Returns: A copy of the string with both leading and trailing characters stripped.

使用 strip() 方法：

• 如果左侧字符串的字符与char参数中的字符不匹配，该方法将停止删除前导字符。
• 如果右侧字符串的字符与char参数中的字符不匹配，该方法将停止删除尾随字符。

示例 #1：

Python3

# Python code to illustrate the working of strip()
string = '   Geeks for Geeks   '
 
# Leading spaces are removed
print(string.strip())
 
# Geeks is removed
print(string.strip('   Geeks'))
 
# Not removed since the spaces do not match
print(string.strip('Geeks'))

输出 ：

Geeks for Geeks
for
   Geeks for Geeks   

示例 #2：

Python3

# Python code to illustrate the working of strip()
string = '@@@@Geeks for Geeks@@@@@'
 
# Strip all '@' from beginning and ending
print(string.strip('@'))
 
string = 'www.Geeksforgeeks.org'
 
# '.grow' removes 'www' and 'org' and '.'
print(string.strip('.grow'))

输出：

Geeks for Geeks
Geeksforgeeks

示例#3：
以下代码显示了 strip() 在Python中的应用。

Python3

# Python code to check for identifiers
def Count(string):
 
    print("Length before strip()")
    print(len(string))
 
    # Using strip() to remove white spaces
    str = string.strip()
    print("Length after removing spaces")
    return str
 
 
# Driver Code
string = "  Geeks for Geeks   "
print(len(Count(string)))

输出：

Length before strip()
17
Length after removing spaces
15