例如：复制一下程序到matlab窗口

figure

t=0:0.001:1;

y1=sin(10*t);

y2=sin(15*t);

y3=sin(20*t);

y4=sin(25*t);

subplot(2,2,1)

plot(t,y1,'--r*','linewidth',2,'markersize',5)

text(.5,.5,{'subplot(2,2,1)'},...

'FontSize',14,'HorizontalAlignment','center')

subplot(2,2,2)

plot(t,y2,'--b*','linewidth',2,'markersize',5)

text(.5,.5,{'subplot(2,2,2)'},...

'FontSize',14,'HorizontalAlignment','center')

subplot(2,2,3)

plot(t,y2,'--b*','linewidth',2,'markersize',5)

text(.5,.5,{'subplot(2,2,3)'},...

'FontSize',14,'HorizontalAlignment','center')

subplot(2,2,4)

plot(t,y2,'--r*','linewidth',2,'markersize',5)

text(.5,.5,{'subplot(2,2,4)'},...

'FontSize',14,'HorizontalAlignment','center')

程序编译结果如右图所示