[wuding]

代码如下：
clc
clear
s1=[ 1 2 3 4 5 6 7 8 9];
for t=1:4
A=[s1(2*t-1)+s1(2*t+1)]/2;
B= [A ]
end
输出：

B = 2
B = 4
B = 6
B = 8

我想要的结果：
B = [2,4,6,8]

坐等大神！