Python string rpartition()用法及代碼示例

Python中的rpartition()函數將給定的字符串分為三部分。 rpartition()從右側開始查找分隔符，直到找到分隔符，然後返回一個元組，其中包含分隔符之前的字符串部分，字符串的參數以及分隔符之後的部分。

用法:

string.rpartition(separator)

參數：

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參數，它將返回分隔符之前的字符串部分，分隔符參數本身以及分隔符之後的部分。
2. 它返回兩個空字符串，如果在字符串中找不到分隔符，則返回給定的字符串。

異常：

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

代碼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'))

輸出：

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

代碼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'))

輸出：

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

代碼3： TypeError

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

輸出：

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

代碼4： ValueError

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

輸出：

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