8-6.c

来自「一本经典书籍--C程序员成长攻略的原代码」· C语言 代码 · 共 85 行

#include"dos.h"
#include"stdlib.h"
void SetCurSize(int l1,int l2)
{
	union REGS regs;
	regs.h.ch=l1;
	regs.h.cl=l2;
	regs.h.ah=1;
	int86(0x10,&regs,&regs);
}
void LocateCur(int x,int y)
{
	union REGS regs;
	regs.h.ah=2;
	regs.h.dh=x;
	regs.h.dl=y;
	regs.h.bh=0;
	int86(0x10,&regs,&regs);
}
void PrtChar(char c,int x,int y)
{
	LocateCur(x,y);
	_AL=c;
	_AH=14;
	geninterrupt(0x10);
}
void PrtTime(int x,int y)
{
	int hour,min,sec,j;
	char *h,*m,*s,ch;
	_AH=2;
	geninterrupt(0x1A);
	hour=_CH;
	min=_CL;
	sec=_DH;
	hour=(hour/16)*10+(hour%16);
	min=(min/16)*10+(min%16);
	sec=(sec/16)*10+(sec%16);
	h=itoa(hour,h,10);
	m=itoa(min,m,10);
	s=itoa(sec,s,10);
	LocateCur(x,y);
	if(hour<10)
	{
		PrtChar('0',x,y);
		y=y+1;
	}
	while(h[0]!='\0')
	{
		PrtChar(h[0],x,y++);
		h++;
	}
	PrtChar(':',x,y++);
	if(min<10)
	{
		PrtChar('0',x,y);
		y=y+1;
	}
	while(m[0]!='\0')
	{
		PrtChar(m[0],x,y++);
		m++;
	}
	PrtChar(':',x,y++);
	if(sec<10)
	{
		PrtChar('0',x,y);
		y=y+1;
	}
	while(s[0]!='\0')
	{
		PrtChar(s[0],x,y++);
		s++;
	}
}
main()
{
	clrscr();
	SetCurSize(7,0);
	while(!kbhit())
	{
		PrtTime(10,30);
	}
}