#include <stdio.h>
#include <graphics.h>
#include <math.h>

void Bezier3(int p[][2],int color,int tzb)
{
double t,xt,yt;
int rate=1000,i,m;
setlinestyle(0,0,1);
setcolor(9);
delay(1000);
if(tzb==1)
   for(i=0;i<9;i++)
      line(p[i][0],p[i][1],p[i+1][0],p[i+1][1]);
setcolor(color);
moveto(p[0][0],p[0][1]);
for(m=0;m<7;m+=3)
for(t=0;t<=1;t+=0.1/rate)
{
yt=1-t;
xt=p[m][0]*yt*yt*yt+3*p[m+1][0]*yt*yt*t+3*p[m+2][0]*yt*t*t+p[m+3][0]*t*t*t;
yt=p[m][1]*yt*yt*yt+3*p[m+1][1]*yt*yt*t+3*p[m+2][1]*yt*t*t+p[m+3][1]*t*t*t;

lineto(xt,yt);
delay(15);
}
}

void main()
{
int gdriver=DETECT,gmode;
int p[10][2]={{60,98},{95,65},{152,54},{117,152},{225,243},{302,98},{380,102},{318,202},{409,248},{502,130}};
initgraph(&gdriver,&gmode,"");
cleardevice();
setbkcolor(3);

Bezier3(p,5,1);

getchar();
closegraph();
}

这样也能出错误，我真不知道该怎么去改？