数组的遍历

for x in np.nditer(m):
    print(x)

    
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
>>> for x in np.nditer(m,order = 'C'):#遍历顺序
    print(x)

    
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
>>> for x in np.nditer(m,order = 'F'):
    print(x)

    
0
8
16
1
9
17
2
10
18
3
11
19
4
12
20
5
13
21
6
14
22
7
15
23
>>> for x in np.nditer(m,op_flags=['readwrite']):#可修改数组元素
    x[...]=2*x

    
>>> print(x)
46