请问MATLAB中这里的for循环怎么改成while循环

你好！可以这样

i = 3; 
while(i<=size(s,2))
j = 2;
while(j<=size(s,1))
total(j-1) = total(j-1) + s{j,i};
j = j+1;
end
i = i+1;
end