>> plot(x,y) >> plot(x,y,'g','markersize',25) >> plot(x,y,'g.','markersize',25)区别

data=nihe030501 x=data(:,1) y=data(:,2) x=x’ y=y’ plot(x,y) plot(x,y,‘g’,‘markersize’,25) plot(x,y,‘g.’,‘markersize’,25)

>>阅读原文<<