怎么用C语言编程数字时钟
2个回答
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1、以下例程实现时钟的实时显示基本要求: 1) 自行设计界面,模拟表盘式时钟。要求界面美观,清晰。2)数字同步显示时间信息。
2、例程:
#include<graphics.h>
#include<math.h>
#include<dos.h>
#define PI 3.1415926
//屏幕中心的坐标(640X480模式下)
#define mid_x 320
#define mid_y 240
int main()
{ int graphdriver=DETECT,graphmode;
int end_x,end_y;
struct time curtime;
float th_hour,th_min,th_sec;
initgraph(&graphdriver,&graphmode,"C:\\TC2"); //初始化VGA屏幕模式
setbkcolor(BLACK); //使用黑色的背景色
while(!kbhit(0)) //若有键盘输入,则跳出,即是结束程序
{ setcolor(GREEN); //把画笔设为绿色
circle(mid_x,mid_y,180); //钟的外圆
circle(mid_x,mid_y,150); //钟的内圆
circle(mid_x,mid_y,1); //画出钟的圆心
gettime(&curtime); //取得系统当前时间
th_sec=(float)curtime.ti_sec*0.1047197551; //把秒针的角度化为弧度,为以后绘制时方便,下同
th_min=(float)curtime.ti_min*0.1047197551+th_sec/60.0; //分针的弧度
th_hour=(float)curtime.ti_hour*0.5235987755+th_min/12.0; //时度的弧度,注意整时是12等分的,所时乘的是3.14/180*5
//计算出时针的尾的坐标(时针长70)
end_x=mid_x+70*sin(th_hour);
end_y=mid_y-70*cos(th_hour);
setcolor(RED);
line(mid_x,mid_y,end_x,end_y); //用红色线画出时针
//计算出分针坐标(分针长110)
end_x=mid_x+110*sin(th_min);
end_y=mid_y-110*cos(th_min);
setcolor(RED);
line(mid_x,mid_y,end_x,end_y); //用红色画出分针
end_x=mid_x+140*sin(th_sec);
end_y=mid_y-140*cos(th_sec);
setcolor(RED);
line(mid_x,mid_y,end_x,end_y); //同上,画出秒针,长为140
//画出钟盘上的刻度,刻度长20
line(140,240,160,240); //9点对应的大刻度
line(320,60,320,80); //12点对应的大刻度
line(500,240,480,240); //3点的刻度
line(320,420,320,400); //6点的刻度
line(410,395.7,400,378.4); //5点
line(475.7,330,458.4,320); //4点
line(475.7,150,458.4,160); //2点
line(410,84.3,400,101.6); //1点
line(230,84.3,240,101.6); //11点
line(164.3,150,181.6,160); //10点
line(164.3,330,181.6,320); //8点
line(230,395.7,240,378.4); //7点
sleep(BLUE); //这里应该是打错,停止一秒,应为sleep(1000)
cleardevice(); //清除屏幕上的显示
}
closegraph(); //关闭VGA屏幕,即返回文本方式
return 0;
}
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希望能帮到你
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit w=P2^6; //位定义
sbit d=P2^7; //段定义
uchar a[]={0x3f,0x06,0x5b,0x4f,0x66,
0x6d,0x7d,0x07,0x7f,0x6f};
uchar hnum,fnum,mnum,num1,hshi,hge,fshi,fge,mshi,mge;
void delay(uint);
void display1(uchar,uchar,uchar,uchar,uchar,uchar);
void init();
void main()
{
init();
while(1)
{
display1(hshi,hge,fshi,fge,mshi,mge);
//display2(fshi,fge);
//display3(mshi,mge);
}
}
/*......初始化.......*/
void init()
{
TMOD=1;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
EA=1; // 开总中断
ET0=1; //开定时器0
TR0=1;//启动定时器0
}
/*......显示......*/
void display1(uchar hshi,uchar hge,uchar fshi,uchar fge,uchar mshi,uchar mge)
{
d=1;
P0=a[hshi];
d=0;
P0=0xff;
w=1;
P0=0xfe;
w=0;
delay(1);
d=1;
P0=a[hge];
d=0;
P0=0xff;
w=1;
P0=0xfd;
w=0;
delay(1);
d=1;
P0=a[fshi];
d=0;
P0=0xff;
w=1;
P0=0xf7;
w=0;
delay(1);
d=1;
P0=a[fge];
d=0;
P0=0xff;
w=1;
P0=0xef;
w=0;
delay(1);
d=1;
P0=a[mshi];
d=0;
P0=0xff;
w=1;
P0=0xbf;
w=0;
delay(1);
d=1;
P0=a[mge];
d=0;
P0=0xff;
w=1;
P0=0x7f;
w=0;
delay(1);
}
/*.....延时......*/
void delay(uint z)
{
uint i,j;
for(i=z;i>0;i--)
for(j=110;j>0;j--);
}
/*......中断......*/
void T0_time() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
num1++;
if(num1==20)
{
num1=0;
mnum++;
mshi=mnum/10;
mge=mnum%10;
if(mnum==60)
{
mnum=0;
fnum++;
} fshi=fnum/10;
fge=fnum%10;
if(fnum==60)
{
fnum=0;
hnum++;
}
hshi=hnum/10;
hge=hnum%10;
if(hnum==24)
{
hnum=0;
}
}
}
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit w=P2^6; //位定义
sbit d=P2^7; //段定义
uchar a[]={0x3f,0x06,0x5b,0x4f,0x66,
0x6d,0x7d,0x07,0x7f,0x6f};
uchar hnum,fnum,mnum,num1,hshi,hge,fshi,fge,mshi,mge;
void delay(uint);
void display1(uchar,uchar,uchar,uchar,uchar,uchar);
void init();
void main()
{
init();
while(1)
{
display1(hshi,hge,fshi,fge,mshi,mge);
//display2(fshi,fge);
//display3(mshi,mge);
}
}
/*......初始化.......*/
void init()
{
TMOD=1;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
EA=1; // 开总中断
ET0=1; //开定时器0
TR0=1;//启动定时器0
}
/*......显示......*/
void display1(uchar hshi,uchar hge,uchar fshi,uchar fge,uchar mshi,uchar mge)
{
d=1;
P0=a[hshi];
d=0;
P0=0xff;
w=1;
P0=0xfe;
w=0;
delay(1);
d=1;
P0=a[hge];
d=0;
P0=0xff;
w=1;
P0=0xfd;
w=0;
delay(1);
d=1;
P0=a[fshi];
d=0;
P0=0xff;
w=1;
P0=0xf7;
w=0;
delay(1);
d=1;
P0=a[fge];
d=0;
P0=0xff;
w=1;
P0=0xef;
w=0;
delay(1);
d=1;
P0=a[mshi];
d=0;
P0=0xff;
w=1;
P0=0xbf;
w=0;
delay(1);
d=1;
P0=a[mge];
d=0;
P0=0xff;
w=1;
P0=0x7f;
w=0;
delay(1);
}
/*.....延时......*/
void delay(uint z)
{
uint i,j;
for(i=z;i>0;i--)
for(j=110;j>0;j--);
}
/*......中断......*/
void T0_time() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
num1++;
if(num1==20)
{
num1=0;
mnum++;
mshi=mnum/10;
mge=mnum%10;
if(mnum==60)
{
mnum=0;
fnum++;
} fshi=fnum/10;
fge=fnum%10;
if(fnum==60)
{
fnum=0;
hnum++;
}
hshi=hnum/10;
hge=hnum%10;
if(hnum==24)
{
hnum=0;
}
}
}
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