两个参看啊：
第一个：
算法：将当前时间显示到屏幕，当时间发生变化时，清屏，显示新的时间（当有键盘 *** 作时退出程序）。
显示时间格式：小时：分钟：秒
/ DEV C++ Win XP/
#include <stdioh>
#include <stdlibh>
#include <conioh>
#include <timeh>
typedef struct
{
int x;
int y;
}Point;
time_t now;
struct tm pt,t1,t2;
int printpoint(Point p)
{
Point p1;
p1x=px+2; p1y=py+4;
gotoxy(p1x,p1y); printf("%c%c",2,2);
gotoxy(p1x, p1y+1); printf("%c%c",2,2);
p1y+=4;
gotoxy(p1x,p1y); printf("%c%c",2,2);
gotoxy(p1x,p1y+1); printf("%c%c",2,2);
return 0;
}
int print0(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(px+1, py+i);
if(i==0||i==12)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else
printf("%c%4s%c",2," ",2);
}
return 0;
}
int print1(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(px+1, py+i);
printf("%5s%c"," ",2);
}
return 0;
}
int print2(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(px+1, py+i);
if(i==0||i==6||i==12)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else if(i>0&&i<6)
printf("%5s%c"," ",2);
else
printf("%c",2);
}
return 0;
}
int print3(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(px+1, py+i);
if(i==0||i==6||i==12)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else
printf("%5s%c"," ",2);
}
return 0;
}
int print4(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(px+1, py+i);
if(i<6) printf("%c%4s%c",2," ",2);
else if(i==6)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else printf("%5s%c"," ",2);
}
return 0;
}
int print5(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(px+1, py+i);
if(i==0||i==6||i==12)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else if(i>0&&i<6)
printf("%c",2);
else
printf("%5s%c"," ",2);
}
return 0;
}
int print6(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(px+1, py+i);
if(i==0||i==6||i==12)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else if(i>0&&i<6)
printf("%c",2);
else
printf("%c%4s%c",2," ",2);
}
return 0;
}
int print7(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(px+1, py+i);
if(i==0) printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else printf("%5s%c"," ",2);
}
return 0;
}
int print8(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(px+1, py+i);
if(i==0||i==6||i==12)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else printf("%c%4s%c",2," ",2);
}
return 0;
}
int print9(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(px+1, py+i);
if(i==0||i==6||i==12)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else if(i>0&&i<6)
printf("%c%4s%c",2," ",2);
else
printf("%5s%c"," ",2);
}
return 0;
}
int clear(Point p)
{
int i=0;
for(;i<13;i++)
gotoxy(px,py+i); printf("%16s"," ");
return 0;
}
int printtime(Point p, int n)
{
int a,b;
Point pp;
a=n/10, b=n%10;
ppx=px+8, ppy=py;
switch(a)
{
case 0: print0(p); break;
case 1: print1(p); break;
case 2: print2(p); break;
case 3: print3(p); break;
case 4: print4(p); break;
case 5: print5(p); break;
}
switch(b)
{
case 0: print0(pp); break;
case 1: print1(pp); break;
case 2: print2(pp); break;
case 3: print3(pp); break;
case 4: print4(pp); break;
case 5: print5(pp); break;
case 6: print6(pp); break;
case 7: print7(pp); break;
case 8: print8(pp); break;
case 9: print9(pp); break;
}
return 0;
}
int main()
{
Point phour, pmin, psec,point1,point2;
phourx=9, pminx=32, psecx=55;
phoury=pminy=psecy=7;
point1x=25, point2x=49;
point1y=point2y=7;
clrscr();
textbackground(BLUE);
textcolor(YELLOW);
now=time(0);
pt=localtime(&now);
t1=pt;
printtime(phour, t1tm_hour);
printpoint(point1);
printtime(pmin, t1tm_min);
printpoint(point2);
printtime(psec, t1tm_sec);
while(1)
{
now=time(0);
pt=localtime(&now);
t2=pt;
if(t2tm_sec!=t1tm_sec)
{
t1=t2;
clrscr();
printtime(phour, t1tm_hour);
printpoint(point1);
printtime(pmin, t1tm_min);
printpoint(point2);
printtime(psec, t1tm_sec);
}
if(bioskey(1)==0) continue;
else exit(0);
}
return 0;
}
晕，还有一份字数限制了
给你2个选吧，都是原创：
第1个：
#include<graphicsh>
#include<mathh>
#include<dosh>
#define pi 31415926
#define X(a,b,c) x=acos(bcpi/180-pi/2)+300;
#define Y(a,b,c) y=asin(bcpi/180-pi/2)+240;
#define d(a,b,c) X(a,b,c);Y(a,b,c);line(300,240,x,y)
void init()
{int i,l,x1,x2,y1,y2;
setbkcolor(1);
circle(300,240,200);
circle(300,240,205);
circle(300,240,5);
for(i=0;i<60;i++)
{if(i%5==0) l=15;
else l=5;
x1=200cos(i6pi/180)+300;
y1=200sin(i6pi/180)+240;
x2=(200-l)cos(i6pi/180)+300;
y2=(200-l)sin(i6pi/180)+240;
line(x1,y1,x2,y2);
}
}
main()
{
int x,y;
int gd=VGA,gm=2;
unsigned char h,m,s;
struct time t[1];
initgraph(&gd,&gm,"d:\\tc");
init();
setwritemode(1);
gettime(t);
h=t[0]ti_hour;
m=t[0]ti_min;
s=t[0]ti_sec;
setcolor(7);
d(150,h,30);
setcolor(14);
d(170,m,6);
setcolor(4);
d(190,s,6);
while(!kbhit())
{while(t[0]ti_sec==s)
gettime(t);
sound(400);
delay(70);
sound(200);
delay(30);
nosound();
setcolor(4);
d(190,s,6);
s=t[0]ti_sec;
d(190,s,6);
if (t[0]ti_min!=m)
{
setcolor(14);
d(170,m,6);
m=t[0]ti_min;
d(170,m,6);
}
if (t[0]ti_hour!=h)
{ setcolor(7);
d(150,h,30);
h=t[0]ti_hour;
d(150,h,30);
sound(1000);
delay(240);
nosound();
delay(140);
sound(2000);
delay(240);
nosound();
}
}
getch();
closegraph();
}
第2个：
#include<graphicsh>
#include<mathh>
#include<dosh>
#define PI 31415926
#define x0 320 /定义钟表中心坐标/
#define y0 240
void 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+lsin(th);
y1=y-lcos(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)curtimeti_hour<=12) /午前的处理/
{printf("AM ");
if((float)curtimeti_hour<10) printf("0"); /十点之前在小时数前加零/
printf("%0f:",(float)curtimeti_hour);
}
else /午后的处理/
{printf("PM ");
if((float)curtimeti_hour-12<10) printf("0");
printf("%0f:",(float)curtimeti_hour-12);
}
if((float)curtimeti_min<10) printf("0");
printf("%0f:",(float)curtimeti_min);
if((float)curtimeti_sec<10) printf("0");
printf("%0f",(float)curtimeti_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)curtimeti_sec01047197551; /2π/60=01047197551/
th_min=(float)curtimeti_min01047197551+th_sec/600;
th_hour=(float)curtimeti_hour0523598775+th_min/120; / 2π/12=05235987755 /
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();
}
//定义共阴极数码管，对应显示0-F
uchar code seven_seg[] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,
0x6f,0x77,0x7C,0x39,0x5e,0x79,0x71};
uchar keyState = 0 ; // 0表示没有 *** 作 1 修改秒 2 修改分钟 3 修改小时 4 定闹 小时 5定闹分钟
uint ledState =0;
uchar ledStateNum=0;
uint num = 0 ;
sbit KEY1=P3^0; //定义IO口
sbit KEY2=P3^1;
sbit KEY3=P3^2;
sbit KEY4=P3^3;
char timer[] ={ 0 , 0 , 0} ; //时，分，秒
char n_timer[2]={11,0};
//延时程序 ，当调用此函数时，需要传递参数ms，用于设置延时时间
//若为12M晶振，每条指令对应1us的时间 ,要对应1ms的时间，就要选择
//0012M的晶振，也就是12K的晶振（有吗？）
// 若要用12M的晶振，实现1ms的延时，程序需要做修改。如下面注释的语句
void DelayMS(uint ms)
{
ms = 1000; //加上此语句，实现延时1ms
while(ms--);
}
void Display()
{
uchar i = 0,flags;
uchar count = 0;
uchar temp [6] ={ 0xfe,0xfd,0xfb,0xf7,0xef,0xdf};
if( 4 == keyState || 5 == keyState )
//从程序看，应该有外部中断处理函数用于设置keystate参数
//这个if写得比较另类，正常应把参数放在前面，
//判断按键是否按下，两个有一个按下即执行
{
P2 = temp[0]; //向P2口写数据
P0 = 0x00; //有了下面一条指令，这条语句没有用
P0 = 0x40; //向P0口写数据
DelayMS(1); //延时1ms
P2 = temp[1];
P0 = 0x00;
P0 = 0x40;
DelayMS(1);
P2 = temp[2];
P0 = 0x00;
if(ledState && 4 == keyState)
P0 = seven_seg[ n_timer[0] / 10 ];
else
P0 = seven_seg[ n_timer[0] / 10 ] | 0x80;
DelayMS(1);
P2 = temp[3];
P0 = 0x00;
if(ledState && 4 == keyState)
P0 = seven_seg[ n_timer[0] % 10 ];
else
P0 = seven_seg[ n_timer[0] % 10 ] | 0x80;
DelayMS(1);
P2 = temp[4];
P0 = 0x00;
if(ledState && 5 == keyState)
P0 = seven_seg[ n_timer[1] / 10 ];
else
P0 = seven_seg[ n_timer[1] / 10 ] | 0x80;
DelayMS(1);
P2 = temp[5];
P0 = 0x00;
if(ledState && 5 == keyState)
P0 = seven_seg[ n_timer[1] % 10 ];
else
P0 = seven_seg[ n_timer[1] % 10 ] | 0x80;
DelayMS(1);
P2 = 0XFF;
return ;
}
//没有主程序和外部中断处理函数，这段程序读起来不太好读懂
//应该是根据ledstate的状态，也就是4或5来进行时间的校对。
if( 0 == keyState)
{
P2 = temp[0];
P0 = 0x00;
P0 = seven_seg[ timer[0] / 10 ];
DelayMS(1);
P2 = temp[1];
P0 = 0x00;
P0=seven_seg[ timer[0] % 10 ];
DelayMS(1);
P2 = temp[2];
P0 = 0x00;
P0 = seven_seg[ timer[1] / 10 ];
DelayMS(1);
P2 = temp[3];
P0 = 0x00;
P0 = seven_seg[ timer[1] % 10 ];
DelayMS(1);
P2 = temp[4];
P0 = 0x00;
P0 = seven_seg[ timer[2] / 10 ];
DelayMS(1);
P2 = temp[5];
P0 = 0x00;
P0 = seven_seg[ timer[2] % 10 ];
DelayMS(1);
P2 = 0XFF;
return ;
}
//若不需要设置时间，显示时间
while( i < 6 )
{
if(3- keyState == i/2 && ledState == 0)
{
flags = 0;
}
else
{
flags = 1;
}
if( flags)
{
P2 = temp[i];
P0=0x00;
if(0 == i % 2)
{
P0 = seven_seg[ timer[i/2] / 10 ];
}
else
{
P0 = seven_seg[ timer[i/2] % 10 ];
}
}
i++;
}
//这个程序不全，没有看懂
}
这个程序不复杂的。如果懂单片机和C语言很容易读懂的。
有不懂的地方，用Keil或Proteus仿真一下。就读懂了
自己动手 *** 作一下，总比在这里等强。
再说你给的悬赏分也不高啊
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