以下三个都是很简单的C语言图形学的小程序，可以输出几个不错的图形，作为子函数还可以的，拿出来展览一下，不过运行的时候注意一下initgraph的路径，自己改一下吧。 #include<graphics.h>  /*A simplest C graph product,run it directly*/ main(){int x,driver=DETECT,mode; registerbgidriver(EGAVGA_driver); initgraph(&driver,&mode,""); cleardevice(); setbkcolor(9); for(x=170;x<=470;x=x+30) {line(170,200,x,100);  line(170,200,x,300);  line(470,200,x,100);  line(470,200,x,300); } getch(); closegraph();} ---------------------------------------------------------------------- #include<graphics.h>  /*Input a number less than 50 and than Enter*/#include<conio.h>#include<math.h> #define pi 3.1415926#define max 50 main(){int i,j,n,driver=DETECT,mode; double r=100.0,theta,x[max],y[max]; printf("n(<=50)="); scanf("%d",&n); registerbgidriver(EGAVGA_driver); initgraph(&driver,&mode,""); theta=2*pi/n; for(i=0;i<n;i++) {x[i]=320.0+2*r*cos(theta*i);  y[i]=200.0-r*sin(theta*i); } for(i=0;i<n-1;i++) {for(j=i+1;j<n;j++)  {line((int)x[i],(int)y[i],(int)x[j],(int)y[j]);  } } getch(); closegraph();} ----------------------------------------------------------------------------- #include<graphics.h>  /*A solid circle filled with 15 colors*/ main(){int driver=DETECT,mode,i; int start=0,end=24; registerbgidriver(EGAVGA_driver); initgraph(&driver,&mode,""); for(i=0;i<15;i++) {setfillstyle(1,i+1);  pieslice(320,200,start,end,100);  start=start+24;  end=end+24; } getch(); closegraph();}

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