numpy.defchararray.center()用 Python
表示
哎哎哎:# t0]https://www . geeksforgeeks . org/num py-defchararray-center-in-python/
numpy.core.defchararray.center(arr, width, fillchar) : 将字符串元素按元素排列。
参数: arr : 阵状或弦状。 宽度:结果字符串的长度。 填充字符:填充字符。默认为空格。
返回:带中心字符串的数组副本。
代码#1:
# Python Program illustrating
# numpy.char.center() method
import numpy as np
arr1 = ['eAAAa', 'ttttds', 'AAtAAt']
print ("arr1 : ", arr1)
print ("\narr1 : ", np.char.center(arr1, 7, fillchar ='z'))
print ("\narr1 : ", np.char.center(arr1, [9, 9, 11],
fillchar =['z', '1', '3']))
print ("\narr1 : ", np.char.center(arr1, 11, fillchar ='z'))
输出:
arr1 : ['eAAAa', 'ttttds', 'AAtAAt']
centered arr1 : ['zeAAAaz' 'zttttds' 'zAAtAAt']
centered arr1 : ['zzeAAAazz' '11ttttds1' '333AAtAAt33']
centered arr1 : ['zzzeAAAazzz' 'zzzttttdszz' 'zzzAAtAAtzz']
代码#2:
# Python Program illustrating
# numpy.char.center() method
import numpy as np
arr2 = ['11sf', 'sdsf2', '1111f2']
print ("arr2 : ", arr2)
# Will throw Error
print ("\narr2 : ", np.char.center(arr2))
输出:
arr2 : ['11sf', 'sdsf2', '1111f2']
TypeError: center() missing 1 required positional argument: 'width'
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