2.单窗口多曲线绘图 例2:t=0:pi/100:2pi; y=sin(t);y1=sin(t+0.25);y2=sin(t!0.5); plot(t, y, t,y1, t,y2) 0.8 6 0.4 o.2 y2 -0.2 -0.40 1 2 3 4 5 6 7 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 2. 单窗口多曲线绘图 例2：t=0:pi/100:2*pi; y=sin(t);y1=sin(t+0.25);y2=sin(t+0.5); plot(t,y,t,y1,t,y2) y y1 y2