题目:画图,综合例子2。(在TC中实现)。
程序分析:无。
程序源代码:
// Created by www.codercto.com on 15/11/9.
// Copyright © 2015年 码农 教程. All rights reserved.
//
#include "graphics.h"
#define LEFT 0
#define TOP 0
#define RIGHT 639
#define BOTTOM 479
#define LINES 400
#define MAXCOLOR 15
int main()
{
int driver,mode,error;
int x1,y1;
int x2,y2;
int dx1,dy1,dx2,dy2,i=1;
int count=0;
int color=0;
driver=VGA;
mode=VGAHI;
initgraph(&driver,&mode,"");
x1=x2=y1=y2=10;
dx1=dy1=2;
dx2=dy2=3;
while(!kbhit())
{
line(x1,y1,x2,y2);
x1+=dx1;y1+=dy1;
x2+=dx2;y2+dy2;
if(x1<=LEFT||x1>=RIGHT)
dx1=-dx1;
if(y1<=TOP||y1>=BOTTOM)
dy1=-dy1;
if(x2<=LEFT||x2>=RIGHT)
dx2=-dx2;
if(y2<=TOP||y2>=BOTTOM)
dy2=-dy2;
if(++count>LINES)
{
setcolor(color);
color=(color>=MAXCOLOR)?0:++color;
}
}
closegraph();
}
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