Python中的 numpy.char.multiply()函数

NumPy 模块中 char 类的 multiply() 方法用于逐元素字符串多重连接。

numpy.char.multiply()

Syntax : numpy.char.multiply(a, i)
Parameters :

a : array of str or unicode
i : number of times to be repeated

Returns : Array of strings

示例 1：在单个元素字符串数组上使用该方法。

Python3

# importing the module
import numpy as np
  
# created an array
arr1 = np.array(['Geeks'])
print("Original Array :")
print(arr1)
  
# number of times to be repeated
i = 3
  
# using the char.multiply() method
arr2 = np.char.multiply(arr1, i)
print("\nNew array :")
print(arr2)

Python3

# importing the module
import numpy as np
  
# created an array
arr1 = np.array(['Geeks', 'for', 'Geeks'])
print("Original Array :")
print(arr1)
  
# number of times to be repeated
i = 2
  
# using the char.multiply() method
arr2 = np.char.multiply(arr1, i)
print("\nNew array :")
print(arr2)

输出：

Original Array :
['Geeks']

New array :
['GeeksGeeksGeeks']

示例 2：在多元素字符串数组上使用该方法。

Python3

# importing the module
import numpy as np
  
# created an array
arr1 = np.array(['Geeks', 'for', 'Geeks'])
print("Original Array :")
print(arr1)
  
# number of times to be repeated
i = 2
  
# using the char.multiply() method
arr2 = np.char.multiply(arr1, i)
print("\nNew array :")
print(arr2)

输出：

Original Array :
['Geeks' 'for' 'Geeks']

New array :
['GeeksGeeks' 'forfor' 'GeeksGeeks']