【 tulaoshi.com - 编程语言 】
/***********简单的时钟程序，界面不是很美观，您可以根据自己的爱好加以修改，如给表盘加上刻度，将指针改为其它外形等*/#includegraphics.h
#includemath.h
#includedos.h#define PI 3.1415926
#define x0 320 /*定义钟表中心坐标*/
#define y0 240void DrawClock(int x,int y,int color) /*画表盘*/
{ int r=150; /*表盘的半径*/
float th;
setcolor(color);
circle(x,y,r);
circle(x,y,2);
}void DrawHand(int x,int y,float th,int l,int color)
{
int x1,y1;
x1=x+l*sin(th);
y1=y-l*cos(th);
setcolor(color);
line(x,y,x1,y1);
} void main()
{int gdriver=DETECT,gmode;
strUCt time curtime;
float th_hour,th_min,th_sec;
initgraph(&gdriver,&gmode,""); setbkcolor(0); while(! kbhit())
{
DrawClock(x0,y0,14);
gettime(&curtime); /*得到当前系统时间*/ gotoxy(35,20); /*定位输出位置*/
if((float)curtime.ti_hour=12) /*午前的处理*/
{printf("AM ");
if((float)curtime.ti_hour10) printf("0"); /*十点之前在小时数前加零*/
printf("%.0f:",(float)curtime.ti_hour);
}
else /*午后的处理*/
{printf("PM ");
if((float)curtime.ti_hour-1210) printf("0");
printf("%.0f:",(float)curtime.ti_hour-12);
}
if((float)curtime.ti_min10) printf("0");
printf("%.0f:",(float)curtime.ti_min);
if((float)curtime.ti_sec10) printf("0");
printf("%.0f",(float)curtime.ti_sec); /*以下三行计算表针转动角度，以竖直向上为起点，顺时针为正*/ th_sec=(float)curtime.ti_sec*0.1047197551; /*2π/60=0.1047197551*/
th_min=(float)curtime.ti_min*0.1047197551+th_sec/60.0;
th_hour=(float)curtime.ti_hour*0.523598775+th_min/12.0; /* 2π/12=0.5235987755 */
DrawHand(x0,y0,th_hour,70,2); /*画时针*/
DrawHand(x0,y0,th_min,110,3); /*分针*/
DrawHand(x0,y0,th_sec,140,12); /*秒针*/
sleep(1); /*延时一秒后刷新*/
cleardevice();
} closegraph();
}点这里下载
