简单地做了一个。clc;clear;n=200;t=0:pi/n:2*pix=cos(t);y=sin(t);k=0;for t=0:pi/n:2*pik=k+1;x(k)=cos(t);y(k)=sin(t);m=plot(x,y,x(k),y(k),'or')axis equalgetframe;end
