A=[1,2,3;4,5,6];
[x, y]=size(A);
for i=1:x
    for j=1:y
        if A(i,j)>2
            A(i,j)=A(i,j)-2;
        end
    end
end
A

4楼: Originally posted by 月只蓝 at 2016-05-27 19:47:14
A=;
=size(A);
for i=1:x
    for j=1:y
        if A(i,j)>2
            A(i,j)=A(i,j)-2;
        end
    end
end
A

2楼: Originally posted by 1014511134 at 2016-05-27 18:21:12
你A是矩阵，怎么能判断A> 2,可以判断A的元素

3楼: Originally posted by gumufeng1023 at 2016-05-27 18:30:34
两个for语句