C 練習實例58

題目：學用rectangle畫方形。（在TC中實現）。

程序分析：無。

程序源代碼：

//  Created by www.runoob.com on 15/11/9.
//  Copyright © 2015年 菜鳥教程. All rights reserved.
//

#include "graphics.h"
int main()
{
    int x0,y0,y1,x1,driver,mode,i;
    driver=VGA;mode=VGAHI;
    initgraph(&driver,&mode,"");
    setbkcolor(YELLOW);
    x0=263;y0=263;y1=275;x1=275;
    for(i=0;i<=18;i++)
    {
        setcolor(1);
        rectangle(x0,y0,x1,y1);
        x0=x0-5;
        y0=y0-5;
        x1=x1+5;
        y1=y1+5;
    }
    settextstyle(DEFAULT_FONT,HORIZ_DIR,2);
    outtextxy(150,40,"How beautiful it is!");
    line(130,60,480,60);
    setcolor(2);
    circle(269,269,137);
}