C 语言经典100例题目：画图，综合例子。（在TC中实现）。
程序分析：无。
程序源代码：
// Created by www.zhishitu.com on 15/11/9.// Copyright © 2015年 . All rights reserved.//# define PAI 3.1415926# define B 0.809# include "graphics.h"#include "math.h"int main(){ int i,j,k,x0,y0,x,y,driver,mode; float a; driver=CGA;mode=CGAC0; initgraph(&driver,&mode,""); setcolor(3); setbkcolor(GREEN); x0=150;y0=100; circle(x0,y0,10); circle(x0,y0,20); circle(x0,y0,50); for(i=0;i<16;i++) { a=(2*PAI/16)*i; x=ceil(x0+48*cos(a)); y=ceil(y0+48*sin(a)*B); setcolor(2); line(x0,y0,x,y); } setcolor(3);circle(x0,y0,60); /* Make 0 time normal size letters */ settextstyle(DEFAULT_FONT,HORIZ_DIR,0); outtextxy(10,170,"press a key"); getch(); setfillstyle(HATCH_FILL,YELLOW); floodfill(202,100,WHITE); getch(); for(k=0;k<=500;k++) { setcolor(3); for(i=0;i<=16;i++) { a=(2*PAI/16)*i+(2*PAI/180)*k; x=ceil(x0+48*cos(a)); y=ceil(y0+48+sin(a)*B); setcolor(2); line(x0,y0,x,y); } for(j=1;j<=50;j++) { a=(2*PAI/16)*i+(2*PAI/180)*k-1; x=ceil(x0+48*cos(a)); y=ceil(y0+48*sin(a)*B); line(x0,y0,x,y); } } restorecrtmode();}