//  clrscr.h 

// 

//  adapted from 

//  Vincent Fatica 

//  vefatica@syr.edu 

//  Syracuse University Mathematics 

//  http://barnyard.syr.edu/~vefatica/ 

// 

//  by Shannon Bauman 

//  August 9, 1998 

// 

//  clear entire console screen buffer 



#ifndef CLRSCR_H 

#define CLRSCR_H 



int clrscr(); 



#include "clrscr.cpp" 



#endif 





-----------------





//  clrscr.cpp 

// 

//  adapted from 

//  Vincent Fatica 

//  vefatica@syr.edu 

//  Syracuse University Mathematics 

//  http://barnyard.syr.edu/~vefatica/ 

// 

//  by Shannon Bauman 

//  August 9, 1998 

// 

//  clear entire console screen buffer 



#include <windows.h> 

#include <conio.h> 



int clrscr() 

{ 



  HANDLE hndl = GetStdHandle(STD_OUTPUT_HANDLE); 

  CONSOLE_SCREEN_BUFFER_INFO csbi; 

  GetConsoleScreenBufferInfo(hndl, &csbi); 

  DWORD written; 

  DWORD N = csbi.dwSize.X * csbi.dwCursorPosition.Y + 

            csbi.dwCursorPosition.X + 1; 

  COORD curhome = {0,0}; 



  FillConsoleOutputCharacter(hndl, ' ', N, curhome, &written); 

  csbi.srWindow.Bottom -= csbi.srWindow.Top; 

  csbi.srWindow.Top = 0; 

  SetConsoleWindowInfo(hndl, TRUE, &csbi.srWindow); 

  SetConsoleCursorPosition(hndl, curhome); 



  return 0; 

} 

作用是在控制台下清屏