matlab随机产生一个3位整数,将它的十位数变为0。例如,输入738则输出708...答:n=5;a = rand(n);for i=1:size(a,1)[~,positionTemp]=find(a(i,:)>0.5,1,'first');a(i,positionTemp)=0.5;end a = floor(900*rand(1))+100;b = mod(a,10)c = a - mod(a,100)d = c+b a = randi([100 999],1);b = a-mod(floor(a/10),10)*10;...