>> B(3,4,:)=2:4
0 0 0 0
0 0 0 0
0 0 0 2
B(:,:,2) =
0 0 0 0
0 0 0 0
0 0 0 3
B(:,:,3) =
0 0 0 0
0 0 0 0

B(:,:,1) =
0 0 0 0
0 0 0 0
0 0 0 2
B(:,:,2) =
0 0 0 0
0 0 0 0
0 0 0 3
B(:,:,3) =
0 0 0 0
0 0 0 0
0 0 0 4
“:”可看做是遍历的作用
d2=[1,2,3;4,5,6;7,8,9];
d3(:,:,1)=d2;
d3(:,:,2)=d2*2;
d3(:,:,3)=d2*3;
>> d2
d2 =
1 2 3
4 5 6
7 8 9
>> d3
d3(:,:,1) =
1 2 3
4 5 6
7 8 9
d3(:,:,2) =
2 4 6
8 10 12
14 16 18
d3(:,:,3) =
3 6 9
12 15 18
21 24 27
d3(:,:,1)=d2;
d3(:,:,2)=d2*2;
d3(:,:,3)=d2*3;
>> d2
d2 =
1 2 3
4 5 6
7 8 9
>> d3
d3(:,:,1) =
1 2 3
4 5 6
7 8 9
d3(:,:,2) =
2 4 6
8 10 12
14 16 18
d3(:,:,3) =
3 6 9
12 15 18
21 24 27
%也可以通过这种方式创建出3维数组“d3”