Python numpy.ndarray.copy()
numpy.ndarray.copy()返回一个数组的副本。
语法: numpy.ndarray.copy(order=’C’)
参数:
order : 控制拷贝的内存布局。’C’表示C-order,’F’表示F-order,如果a是Fortran连续的,’A’表示F,否则表示C。’K’表示尽可能地与a的布局相匹配。
代码 #1:
# Python program explaining
# numpy.ndarray.copy() function
import numpy as geek
x = geek.array([[0, 1, 2, 3], [4, 5, 6, 7]],
order ='F')
print("x is: \n", x)
# copying x to y
y = x.copy()
print("y is :\n", y)
print("\nx is copied to y")
输出:
x is:
[[0 1 2 3]
[4 5 6 7]]
y is :
[[0 1 2 3]
[4 5 6 7]]
x is copied to y
代码 #2:
# Python program explaining
# numpy.ndarray.copy() function
import numpy as geek
x = geek.array([[0, 1, ], [2, 3]])
print("x is:\n", x)
# copying x to y
y = x.copy()
# filling x with 1's
x.fill(1)
print("\n Now x is : \n", x)
print("\n y is: \n", y)
输出:
x is:
[[0 1]
[2 3]]
Now x is :
[[1 1]
[1 1]]
y is:
[[0 1]
[2 3]]