Python中numpy库的这个用法是什么意思？
import numpy as np
a = np.array([[1,2], [3, 4], [5, 6]])
An example of integer array indexing.
The returned array will have shape (3,) and
print a[[0, 1, 2], [0, 1, 0]] # Prints "[1 4 5]" 这什么意思，我怎么不懂 给解释一下
Python中numpy库的这个用法是什么意思？
4 回复
import numpy as np
a = np.array([[1,2],[3,4],[5,6]])
print(a[[0,1,2]])
print("=========")
print(a[[0,1,0]])
print("=========")
print(a[[0,1,2],[0,1,0]])
[[1 2]
[3 4]
[5 6]]
=========
[[1 2]
[3 4]
[1 2]]
=========
[1 4 5]
Process finished with exit code 0
