Python string rpartition()用法及代码示例

Python中的rpartition()函数将给定的字符串分为三部分。 rpartition()从右侧开始查找分隔符，直到找到分隔符，然后返回一个元组，其中包含分隔符之前的字符串部分，字符串的参数以及分隔符之后的部分。

用法:

string.rpartition(separator)

参数：

separator -  separates the string at the first occurrence of it.

返回值：

1. 如果在字符串中找到了分隔符参数，它将返回分隔符之前的字符串部分，分隔符参数本身以及分隔符之后的部分。
2. 它返回两个空字符串，如果在字符串中找不到分隔符，则返回给定的字符串。

异常：

If separator argument is not supplied, it will throw TypeError.

代码1：

# Python3 code explaining rpartition() 
  
# String need to split 
string1 = "Geeks@for@Geeks@is@for@geeks"
  
string2 = "Ram is not eating but Mohan is eating"
  
# Here '@' is a separator 
print(string1.rpartition('@')) 
  
# Here 'is' is seperator 
print(string2.rpartition('is'))

输出：

('Geeks@for@Geeks@is@for', '@', 'geeks')
('Ram is not eating but Mohan ', 'is', ' eating')

代码2：

# Python3 code explaining rpartition() 
  
# String need to split 
string = "Sita is going to school"
  
# Here 'not' is a separator which is not 
# present in the given string 
print(string.rpartition('not'))

输出：

('', '', 'Sita is going to school')

代码3： TypeError

# Python3 code explaining TypeError 
# in rpartition() 
  
str = "Bruce Waine is Batman"
  
# Nothing is passed as separator 
print(str.rpartition())

输出：

Traceback (most recent call last):
  File "/home/e207c003f42055cf9697001645999d69.py", line 7, in 
    print(str.rpartition())
TypeError:rpartition() takes exactly one argument (0 given)

代码4： ValueError

# Python3 code explaining ValueError 
# in rpartition() 
  
str = "Bruce Waine is Batman"
  
# Nothing is passed as separator 
print(str.rpartition(""))

输出：

Traceback (most recent call last):
  File "/home/c8d9719625793f2c8948542159719007.py", line 7, in 
    print(str.rpartition(""))
ValueError:empty separator