numpy.ndarray 实现对特定行或列取值

如下所示：

import numpy as np

b = [[1,2,0],
[4,5,0],
[7,8,1],
[4,0,1],
[7,11,1]
 ]
a=np.array([b]).reshape((5,3))
print(a)
c=[1,3,4]
# print(a[c])
d=np.nonzero(a[:, 2] == 0)
print(d)
print(a[d])

来源：https://blog.csdn.net/big_pai/article/details/88608232