printf.c

实现了标准C语言库函数printf scanf功能

/**************标准C语言库函数的实现**********************、
/*
 * Printf.c
 * Copyright (c) 2008 ,WuRen
 * Date:2008-04-25
 * V1.00
*/
#include "Printf.h"
#include "stdlib.h"
#include "stdio.h"
#include "stdarg.h"
#include "GUI.h"

void Printf(char *fmt,...)
{
	va_list arg;
	char string[256];
	va_start(arg,fmt);
	vsprintf(string,fmt,arg);
	PrintfPuts(string);
	va_end(arg);
}

void GUI_GetString(char *string)
{
    char *string2=string;
    char c;
    while((c=GUI_WaitKey())!='\r')
    {
	if(c=='\b')
	{
	    if(	(int)string2 < (int)string )
	    {
		GUI_DispString("\b \b");
		string--;
	    }
	}
	else 
	{
	    *string++=c;
	    GUI_DispChar(c);
	}
    }
    *string='\0';
    GUI_DispChar('\n');
}