Numpy字符串操作 |替换（）函数

在numpy.core.defchararray.replace()函数中，arr 中的每个元素返回字符串的副本，其中所有出现的子字符串 old 都替换为 new。

Syntax : numpy.core.defchararray.replace(arr, old, new, count = None)

Parameters :

 arr : [array-like of str]  Given array-like of string.

 old : [str or unicode] Old substring you want to replace.

 new : [str or unicode] New substring which would replace the old substring.

 count : [int, optional] If the optional argument count is given, only the first count occurrences are replaced.

Return : [ndarray] Return the output array of str .

代码#1：

Python3

# Python program explaining 
# numpy.char.replace() function 
  
# importing numpy as geek  
import numpy as geek 
  
gfg = geek.char.replace('GFG | a computer science portal for geeks', 'GFG', 'GeeksforGeeks')
    
print (gfg)

输出 ：

GeeksforGeeks | a computer science portal for geeks

代码#2：

Python3

# Python program explaining 
# numpy.char.replace() function 
  
# importing numpy as geek  
import numpy as geek 
  
gfg = geek.char.replace('This is a python article', 'python', 'Numpy-Python', count = 1)
    
print (gfg)

输出 ：

This is a Numpy-Python article