例题2.27
例题2.27代码
import numpy as np
a = np.arange(16).reshape(4,4)
b = a[1][2]
c= a[1, 2]
d = a[1:2, 2:3]
x = np.array([0, 1, 2, 1])
print(a[x == 1])
import numpy as np
a = np.arange(16).reshape(4,4)
b = a[1][2]
c= a[1, 2]
d = a[1:2, 2:3]
x = np.array([0, 1, 2, 1])
print(a[x == 1])