judgekey.cpp

1、 模拟一间公司（有普通工人、经理、销售员、计时工人和计件工人）的雇员月工资单管理系统

#define KB_ENTER 0x1c
#define KB_F1 0x3b
#define KB_F2 0x3c
#define KB_F10 0x44
#define KB_ESC 0x1
#define KB_UP 0x48
#define KB_DOWN 0x50
#include <conio.h>
#include <graphics.h>
#include <string.h>
#include <stdlib.h>
#include <iostream.h>
#include <dos.h>
#include "item.h"
extern void MessageBox(char *);
extern void quitFun();
int getKey()
{
  union REGS rg;
  rg.h.ah=0;
  int86(0x16,&rg,&rg);
  return rg.h.ah;
};

int jkey(char *temp,int max)
{
  int j=0;
  char t;
  while(1)
  {
    t=getch();
    if((t!=8)&&(t!=27)&&(t!=13)&&(j<max))
    {
      temp[j]=t;
      cout<<temp[j];
      j++;
    }
    else if(t==8&&j>0)
    {
      temp[j-1]=0;
      gotoxy(wherex()-1,wherey());
      cout<<" ";
      gotoxy(wherex()-1,wherey());
      j--;
    }
    else if(t==27) return 1;
    else if(t==13)
    {
      temp[j]='\0';
      break;
    }
  }
  return 0;
};

void judgeKey(Item *p)
{
  int key;
  Item *pp=p;
  Item *pi=p;
  Item *end=p;
  Item *first=p;
  for(end;end->getNext();end=end->getNext());
  while(1)
  {
    key=getKey();
    switch(key)
    {
      case KB_F1: MessageBox("Sorry,Do it yourself!");break;
      case KB_F2: MessageBox("About Me:Lxcong C4");break;
      case KB_F10:quitFun();
      case KB_ESC:return;
      case KB_UP:pi->resetBK();
		 if(pi==first)
		   {pi=end;pi->changeBK(7);}
		 else
		   for(pp=first;;pp=pp->getNext())
		     if(pp->getNext()==pi){pi=pp;pi->changeBK(7);break;}
		 break;
      case KB_DOWN:pi->resetBK();
		   if(pi==end)
		     {pi=first;pi->changeBK(7);}
		   else
		     {pi=pi->getNext();pi->changeBK(7);}
		   break;
      case KB_ENTER:(pi->getPointTo())();break;
    }
    pi=pi->search(key,p,pi);
  }
}