c语言时钟程序
⑴ c语言 倒计时时钟程序
如果你有TC,可以试一试。
VC 的 kbhit() 不能返回 键名。
23：59：59 -- 86400 秒
#include <stdio.h>
#include <windows.h>
#include <conio.h>
void main()
{
long int t;
int flag =0;
t = 86400;
printf("press S start, press E stop\n");
while(1)
{
if (kbhit() == 'S' || kbhit() == 's') flag =1;
if (kbhit() == 'E' || kbhit() == 'e') flag =0;
Sleep(1000);
if (flag == 1) t = t -1;
if (t <= 0) break;
printf("%d ",t);
}
⑵ 图形时钟用C语言怎么编
#include<graphics.h>
#include<conio.h>
#include<math.h>
voidDraw(inthour,intminute,intsecond)
{
doublea_hour,a_min,a_sec;//时、分、秒针的弧度值
intx_hour,y_hour,x_min,y_min,x_sec,y_sec;//时、分、秒针的末端位置
intx_hour1,y_hour1,x_min1,y_min1,x_sec1,y_sec1;
//计算时、分、秒针的弧度值
a_sec=second*2*PI/60;
a_min=minute*2*PI/60;
a_hour=hour*2*PI/12+a_min/12;;
//计算时、分、秒针的首末端位置
x_sec=320+(int)(120*sin(a_sec));
y_sec=240-(int)(120*cos(a_sec));
x_min=320+(int)(100*sin(a_min));
y_min=240-(int)(100*cos(a_min));
x_hour=320+(int)(70*sin(a_hour));
y_hour=240-(int)(70*cos(a_hour));
x_sec1=320-(int)(15*sin(a_sec));
y_sec1=240+(int)(15*cos(a_sec));
x_min1=320-(int)(10*sin(a_min));
y_min1=240+(int)(10*cos(a_min));
x_hour1=320-(int)(5*sin(a_hour));
y_hour1=240+(int)(5*cos(a_hour));//画时针
setlinestyle(PS_SOLID,NULL,7);
setcolor(WHITE);
line(x_hour1,y_hour1,x_hour,y_hour);
//画分针
setlinestyle(PS_SOLID,NULL,4);
setcolor(LIGHTGRAY);
line(x_min1,y_min1,x_min,y_min);
//画秒针
setlinestyle(PS_SOLID,NULL,2);
setcolor(RED);
line(x_sec1,y_sec1,x_sec,y_sec);
}
voidmain()
{
initgraph(640,480);//初始化640x480的绘图窗口
//绘制一个简单的表盘
circle(320,240,2);
circle(320,240,60);
circle(320,240,160);
outtextxy(296,330,"竹斌");
intx,y;
for(inti=0;i<12;i++)
{
x=320+(int)(140*sin(30*i*2*PI/360));
y=240-(int)(140*cos(30*i*2*PI/360));
switch(i)
{
case0:outtextxy(x-5,y-5,"12");break;
case1:outtextxy(x-5,y-5,"1");break;
case2:outtextxy(x-5,y-5,"2");break;
case3:outtextxy(x-5,y-5,"3");break;
case4:outtextxy(x-5,y-5,"4");break;
case5:outtextxy(x-5,y-5,"5");break;
case6:outtextxy(x-5,y-5,"6");break;
case7:outtextxy(x-5,y-5,"7");break;
case8:outtextxy(x-5,y-5,"8");break;
case9:outtextxy(x-5,y-5,"9");break;
case10:outtextxy(x-5,y-5,"10");break;
case11:outtextxy(x-5,y-5,"11");break;
}
}
//设置XOR绘图模式
setwritemode(R2_XORPEN);//设置XOR绘图模式
//画刻度
inta,b,a1,b1,n=0;
for(n=0;n<60;n++)
{
a=320+(int)(160*sin(n*2*PI/60));
b=240-(int)(160*cos(n*2*PI/60));
a1=320+(int)(150*sin(n*2*PI/60));
b1=240-(int)(150*cos(n*2*PI/60));
if(n%5==0)
setlinestyle(PS_SOLID,NULL,5);
else
setlinestyle(PS_SOLID,NULL,1);
line(a1,b1,a,b);
}
//绘制表针
SYSTEMTIMEti;//定义变量保存当前时间
while(!kbhit())//按任意键退出钟表程序
{
GetLocalTime(&ti);//获取当前时间
Draw(ti.wHour,ti.wMinute,ti.wSecond);//画表针
Sleep(1000);//延时1秒
Draw(ti.wHour,ti.wMinute,ti.wSecond);//擦表针（擦表针和画表针的过程是一样的）
}
closegraph();//关闭绘图窗口
}
⑶ 51单片机求这个时钟的c语言程序
以下是四位数码管可调时带秒闪烁的c51单片机电子钟程序（c语言）。
/**** 本程序中,晶振为12MHz, ****/
/**** 时间控制采用定时中断控制方式。 ****/
/**** 模式和时间调整采用查询方式。 ****/
#include<reg52.h>
sbit P20=P2^0; //分个位控制端
sbit P21=P2^1; //分十位控制端
sbit P22=P2^2; //时个位控制端
sbit P23=P2^3; //时十位控制端
sbit led=P2^7; //second display led
sbit key0=P3^0; //模式设置
sbit key1=P3^1; //加
sbit key2=P3^2; //减
unsigned char hour,min,sec,T50ms;
unsigned char modstate; //模式状态
unsigned char code table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};//段码
void init(); //初始化子程序声明
void delay500us(unsigned char X); //延时子程序声明
void display(); //显示子程序声明
void display001(); //显示子程序声明
void display002(); //显示子程序声明
void keyscan(); //按键识别子程序声明
void main()
{
init();
while(1)
{
keyscan();
}
}
void init() //初始化子程序
{
TMOD=0x01;
TH0=(65536-49990)/256;
TL0=(65536-49990)%256;
ET0=1;
EA=1;
TR0=1;
}
void delay500us(unsigned char X)
{
unsigned char i,j;
for(i=X;i>0;i--)
for(j=248;j>0;j--);
}
void timer0() interrupt 1 //timer0中断服务子程序,定时时间为50ms,本程序加了10us的时间修正量
{
TMOD=0x01;
TH0=(65536-49990)/256;
TL0=(65536-49990)%256;
T50ms++;
if(T50ms>=20)
{
T50ms=0;
sec++;
if(sec>=60)
{
sec=0;
min++;
if(min>=60)
{
min=0;
hour++;
if(hour>=24)hour=0;
}
}
}
}
void display()
{
P20=1;
P21=1;
P22=1;
P23=1;
P0=table[hour/10];
P23=0;
delay500us(5);
P20=1;
P21=1;
P22=1;
P23=1;
P0=table[hour%10];
P22=0;
delay500us(5);
P20=1;
P21=1;
P22=1;
P23=1;
P0=table[min/10];
P21=0;
delay500us(5);
P20=1;
P21=1;
P22=1;
P23=1;
P0=table[min%10];
P20=0;
delay500us(5);
if(T50ms<=10)led=0;
if(T50ms>10)led=1;
}
void display001()
{
P20=1;
P21=1;
P22=1;
P23=1;
P0=table[hour/10];
P23=0;
delay500us(10);
P20=1;
P21=1;
P22=1;
P23=1;
P0=table[hour%10];
P22=0;
delay500us(10);
}
void display002()
{
P20=1;
P21=1;
P22=1;
P23=1;
P0=table[min/10];
P21=0;
delay500us(10);
P20=1;
P21=1;
P22=1;
P23=1;
P0=table[min%10];
P20=0;
delay500us(10);
}
void keyscan() //按键识别钟程序
{
while(modstate==0)
{
display();
if(key0==0)
{
display();
if(key0==0)modstate++; //这两句加在一起为延时10ms软件防抖设计。
while(key0==0)display001(); //等待按键释放。
}
}
//****************************************************************************//
while(modstate==1)
{
display001();
if(key0==0)
{
display001();
if(key0==0)modstate++; //这两句加在一起为延时10ms软件防抖设计。
while(key0==0)display002(); //等待按键释放。
}
if(key1==0)
{
display001();
if(key1==0)
{
hour++;
if(hour>=24)hour=0;
while(key1==0)display001();
}
}
if(key2==0)
{
display001();
if(key2==0)
{
hour--;
if(hour>=24)hour=0;
while(key2==0)display001();
}
}
}
//****************************************************************************//
while(modstate==2)
{
display002();
if(key0==0)
{
display002();
if(key0==0)modstate=0; //这两句加在一起为延时10ms软件防抖设计。
while(key0==0)display(); //等待按键释放。
}
if(key1==0)
{
display002();
if(key1==0)
{
min++;
if(min>=60)min=0;
while(key1==0)display002();
}
}
if(key2==0)
{
display002();
if(key2==0)
{
min--;
if(min>=60)min=0;
while(key2==0)display002();
}
}
}
}
⑷ 单片机C语言该怎么编写时钟程序
这个是简单的数码管时钟显示如果有需要，我写过比较完善的1602显示时钟.显示控制年月日等等.#include<reg51.h>
sbit Begin=P2^0;
sbit Hour=P2^1;
sbit Mus=P2^2;
sbit End=P2^3;
unsigned char code Tab[]={ 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x40};
unsigned char code num[]={ 0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
unsigned char Time[]={0,0,16,0,0,16,0,0};
unsigned char a;
unsigned int x,m,th;
void init()
{
TMOD=0x01;
TH0=(65535/50000)/256;
TL0=(65535/50000)%256;
EA=1;
ET0=1;
TR0=1;
}
void delay(unsigned int z)
{
unsigned int x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
unsigned char keyboard()
{
if(Begin==0){
delay(5);
if(Begin==0)
return 1;
}
if(Hour==0){
delay(30);
if(Hour==0)
return 2;
}
if(Mus==0)
return 3;
if(End==0)
return 4;
}
void display()
{
unsigned char i; for(i=0;i<8;i++)
{
P3=num[i];
P0=Tab[Time[i]];
delay(5);
}
}
void main()
{
unsigned char Key;
init();
Key=keyboard();
if(Key==1)
{
while(1){
Key=keyboard();
display();
if(Key==2)
x+=3600;
if(Key==3)
x+=1;
if(Key==4)
return;
}
}}
void holes() interrupt 1 using 2
{
TH0=(65535/50000)/256;
TL0=(65535/50000)%256;
a++;
if(a>=20)
{
x++;
m=x;
th=m/3600; //设置小时
Time[0]=th/10;
Time[1]=th%10;
m=m%3600; Time[2]=16; th=m/60; //设置分钟
Time[3]=th/10;
Time[4]=th%10;
m=m%60; Time[5]=16; th=m; //设置秒
Time[6]=th/10;
Time[7]=th%10; a=0;
}
}
⑸ c语言时钟代码
#include<graphics.h> /* 引入graphic.h */
#include<math.h> /* 引入math.h */
#include<dos.h> /* 引入dos.h */
#define pi 3.1415926 /*定义pi=3.14159*/
#define X(a,b,c) x=a*cos(b*c*pi/180-pi/2)+300;
#define Y(a,b,c) y=a*sin(b*c*pi/180-pi/2)+240;
#define d(a,b,c) X(a,b,c);Y(a,b,c);line(300,240,x,y) /*定义……*/
void init() /*初始化程序*/
{int i,l,x1,x2,y1,y2; /*定义……*/
setbkcolor(1); /*设置颜色*/
circle(300,240,200); /*作园*/
circle(300,240,205);
circle(300,240,5);
for(i=0;i<60;i++) /*循环（算时间）*/
{if(i%5==0) l=15;
else l=5;
x1=200*cos(i*6*pi/180)+300;
y1=200*sin(i*6*pi/180)+240;
x2=(200-l)*cos(i*6*pi/180)+300;
y2=(200-l)*sin(i*6*pi/180)+240;
line(x1,y1,x2,y2);
}
}
main()
{
int x,y;
int gd=VGA,gm=2;
unsigned char h,m,s; /*定义*/
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; /*定义时分秒*/
setcolor(7); /*设置颜色*/
d(150,h,30);
setcolor(14);
d(170,m,6);
setcolor(4);
d(190,s,6);
while(!kbhit()) /*获取键盘相应*/
{while(t[0].ti_sec==s)
gettime(t); /*C语言中得到时间的函数*/
sound(400); /*计算时间……*/
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(); /*设置空格后退出*/
closegraph();
}
具体的。。就是套用用几个函数算时间。。
不要对这种很长的东西害怕，其实大部分都是在画这个钟～
加油哦～
⑹ 时钟程序（C语言）怎么写
具体代码如下：
#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;
}
⑺ 用C语言编一个数字电子时钟的程序
1.这是用windows api写的程序。所以要求是纯c的话就没有办法了
2.其中定时用了两种方法。一种是用取消息。另一种是延时队列。这里只使用了取消息的方法。延时队列由于我机器上是vc6.0，CreateTimerQueue在本人机器上无法使用，需要新的sdk，所以没有加以验证，但取消息的方式是可行的。
3.稍稍验证了下，基本满足要求。
-------------------------------------------
程序如下：
// DigitalClock.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <windows.h>
#include <winbase.h>
typedef struct _st_time{
int hour;
int min;
int sec;
}ST_TIME;
ST_TIME g_Time; // The struct contain the hour,min and sec.
HANDLE g_hStdout; //
WORD g_cxCenter, g_cyCenter; // Center of the screen.
HANDLE g_DoneEvent; // The program could be over.
BOOL g_ThreadTerminated; // The Thread should be terminated.
#define SECOND_CIRCLE 60
#define MINUTE_CIRCLE 60
#define HOUR_CIRCLE 24
void TimeIncreaseSecond(ST_TIME & st)
{
st.sec ++;
if (st.sec >= SECOND_CIRCLE)
{
st.sec -= SECOND_CIRCLE;
st.min++;
if (st.min >= MINUTE_CIRCLE)
{
st.min -= MINUTE_CIRCLE;
st.hour++;
if (st.hour >= HOUR_CIRCLE)
{
st.hour -= HOUR_CIRCLE;
}
}
}
}
void PrintTimeToScreen(HANDLE hStdout, short cxCenter, short cyCenter, ST_TIME st)
{
char buf[64] = {0};
COORD crdPos;
// make it format to output.
sprintf (buf, "%02d:%02d:%02d", st.hour, st.min, st.sec);
crdPos.X = cxCenter - 4;
crdPos.Y = cyCenter;
SetConsoleCursorPosition(hStdout, crdPos);
printf(buf);
}
#ifdef USE_TIMERQUEUE
// if we use the timer queue function.
// Its procre is in this.
void CALLBACK TimerRoutine (LPVOID lpParam, BOOL TimerOrWaitFired)
{
if (lpParam == NULL)
{
printf ("NULL parameters.\n");
}
else
{
ST_TIME *st = (ST_TIME *)lpParam;
TimeIncreaseSecond(st);
PrintTimeToScreen(g_hStdout, g_cxCenter, g_cyCenter, *st);
}
}
#else
DWORD WINAPI TimerThreadProc(LPVOID lpParam)
{
#define ID_TIMER_SECOND 1
MSG msg;
BOOL ret;
ST_TIME *st = (ST_TIME *)lpParam;
SetTimer(NULL, ID_TIMER_SECOND, 1000, NULL);
PeekMessage(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE);
while (!g_ThreadTerminated && (ret = GetMessage (&msg, NULL, 0, 0)) != 0)
{
if (ret == -1)
{
//process fatal event.
}
else if (msg.message == WM_TIMER)
{
TimeIncreaseSecond(*st);
PrintTimeToScreen(g_hStdout, g_cxCenter, g_cyCenter, *st);
}
else
{
TranslateMessage (&msg);
DispatchMessage (&msg);
}
}
return 1;
}
#endif
// If the ctrl+break combined key pressed. call this function.
// It set the g_DoneEvent. this terminate the program.
BOOL WINAPI CtrlHandler(DWORD fdwCtrlType)
{
switch (fdwCtrlType)
{
case CTRL_BREAK_EVENT:
// Terminate the program.
printf ("Terminate.\n");
SetEvent(g_DoneEvent);
return TRUE;
default:
return FALSE;
}
}
BOOL InitApplication()
{
// Get the stdin and stdout handle.
HANDLE hStdIn;
hStdIn = GetStdHandle(STD_INPUT_HANDLE);
if (hStdIn == INVALID_HANDLE_VALUE)
return FALSE;
g_hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
// Set the mode, make the input echo.
DWORD fOldMode;
GetConsoleMode(hStdIn, &fOldMode);
fOldMode |= ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT;
SetConsoleMode(hStdIn, fOldMode);
// Set the window buffer.
// make a line 40 columns.
CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
GetConsoleScreenBufferInfo(g_hStdout, &csbiInfo);
csbiInfo.srWindow.Right = 40;
// get the center point.
g_cxCenter = csbiInfo.srWindow.Right / 2;
g_cyCenter = csbiInfo.srWindow.Bottom / 2;
// Set the window.
SetConsoleWindowInfo(g_hStdout, TRUE, &csbiInfo.srWindow);
return TRUE;
}
BOOL (HANDLE hStdout, WORD cxCenter, WORD cyCenter, ST_TIME & time)
{
#define GAPS_LEFT_COLON (-2)
#define GAPS_RIGHT_COLON (1)
#define GAPS_LEFT_UNDERLINE_START (-4)
#define GAPS_MIDDLE_UNDERLINE_START (-1)
#define GAPS_RIGHT_UNDERLINE_START (2)
// __:__:__
// So the left ":" center -2
// so the right ":" center + 1
// so the left "_" center - 4;
// so the lfet "_" center - 1;
// so the right "_" center + 2;
COORD crdPos;
crdPos.X = cxCenter + GAPS_LEFT_COLON;
crdPos.Y = cyCenter;
SetConsoleCursorPosition(hStdout, crdPos);
printf (":");
crdPos.X = cxCenter + GAPS_RIGHT_COLON;
SetConsoleCursorPosition(hStdout, crdPos);
printf (":");
crdPos.X = cxCenter + GAPS_LEFT_UNDERLINE_START;
SetConsoleCursorPosition(hStdout, crdPos);
scanf ("%d", &time.hour);
crdPos.X = cxCenter + GAPS_MIDDLE_UNDERLINE_START;
SetConsoleCursorPosition(hStdout, crdPos);
scanf ("%d", &time.min);
crdPos.X = cxCenter + GAPS_RIGHT_UNDERLINE_START;
SetConsoleCursorPosition(hStdout, crdPos);
scanf ("%d", &time.sec);
if (time.hour < 0 || time.hour > HOUR_CIRCLE ||
time.min < 0 || time.min > MINUTE_CIRCLE ||
time.sec < 0 || time.sec > SECOND_CIRCLE)
return FALSE;
return TRUE;
}
int main(int argc, char* argv[])
{
InitApplication();
(g_hStdout, g_cxCenter, g_cyCenter, g_Time);
// create a event to tell the program to terminate.
g_DoneEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
#ifdef USE_TIMERQUEUE
HANDLE hTimerQueue, hTimer;
hTimerQueue = CreateTimerQueue();
if (!CreateTimerQueueTimer(&hTimer,
hTimerQueue, TimerRoutine, &g_Time, 1000, 0, 0))
{
printf("CreateTimerQueueTimer failed (%d)\\n", GetLastError());
return 3;
}
#else
// create the thread.
HANDLE hThreadTimer;
DWORD dwThreadId;
g_ThreadTerminated = FALSE;
hThreadTimer = CreateThread(NULL, 0,
TimerThreadProc, &g_Time, 0, &dwThreadId);
if (hThreadTimer == NULL)
{
}
#endif
SetConsoleCtrlHandler(CtrlHandler, TRUE);
if (WaitForSingleObject(g_DoneEvent, INFINITE) != WAIT_OBJECT_0)
printf("WaitForSingleObject failed (%d)\\n", GetLastError());
#ifdef USE_TIMERQUEUE
if (!DeleteTimerQueue(hTimerQueue))
printf("DeleteTimerQueue failed(%d) \\n", GetLastError());
#else
g_ThreadTerminated = TRUE;
if (WaitForSingleObject(hThreadTimer, INFINITE) != WAIT_OBJECT_0)
printf("WaitForSingleObject failed (%d)\\n", GetLastError());
#endif
return 0;
}
--------------------------------------------
下面是纯c的。
有几个问题：
1.textmode函数在turboc中没有办法使用，不知道是什么问题，而borland c就可以。
2.无论怎么设置，自己的ctrlbreak函数在上述两个环境中都不能被调用，非常遗憾。所以不能够优雅的退出。只能按两次ctrlbreak。
下面是程序。
------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#include <dos.h>
#define ABORT 0
int jump_out_loop = -1;
int jump_out(void)
{
jump_out_loop = 1;
printf("Abort ..\n");
return ABORT;
}
int main(void)
{
struct text_info ti;
int center_x, center_y;
int hour, min, sec;
char str_out[64] = {0};
clrscr();
/*textmode(BW40);*/
/*textmode在turbo c下设置会出问题*/
gettextinfo(&ti);
center_x = ti.winright / 2;
center_y = ti.winbottom / 2;
gotoxy(center_x - 4, center_y);
cprintf(" : : ");
gotoxy(center_x - 4, center_y);
cscanf("%d", &hour);
gotoxy(center_x - 1, center_y);
cscanf("%d", &min);
gotoxy(center_x + 2, center_y);
cscanf("%d", &sec);
/* check input valid or not */
{}
setcbrk(1);
ctrlbrk(jump_out);
/*jump_out没有起到作用,实在不好意思.*/
/*
if (getcbrk())
printf("crtl break is on\n");
else
printf("is off\n");
*/
while (1)
{
delay(1000);
sec++;
if (sec >= 60)
{
sec -= 60;
min++;
if (min >= 60)
{
min -= 60;
hour++;
if (hour >= 24)
{
hour -= 24;
}
}
}
sprintf(str_out, "%02d:%02d:%02d", hour, min, sec);
gotoxy(center_x - 4, center_y);
cprintf(str_out);
}
/* getch();*/
return 0;
}