sbit RS=P2^7;
sbit RW=P2^6;
sbit EN=P2^5;
uchar code table2[]={"0123456789"}; 
void delay(uint x)
{
	uint i,j;
    for(j=0;j<x;j++)
	for(i=0;i<110;i++);
}
void wcom(uchar com)
{
	RS=0;
	RW=0;
	EN=0;
	P0=com;
	delay(5);
	EN=1;
	delay(5);
	EN=0;
}
void wdata(uchar dat)
{
	RS=1;
	RW=0;
	EN=0;
	P0=dat;
	delay(5);
	EN=1;
	delay(5);
	EN=0;
}
void pos(uchar x,uchar y)
{
	uchar pos;
	if(x==1)
	{x=0x80;}
	else if(x==2)
	{x=0x90;}
	else if(x==3)
	{x=0x88;}
	else if(x==4)
	{x=0x98;}
	pos=x+y;
	wcom(pos);
	
}
void wadda(uchar x,uchar y,uchar date)
{
	uchar sh,ge;
	sh=date/10;
	ge=date%10;
	pos(x,y);
	wdata(table2[sh]);
	wdata(table2[ge]);
	pos(x,y);
}

void init()
{
	wcom(0x30);//基本指令操作
	delay(5);
	wcom(0x0c);//顯示開關坐標
	delay(5);
	wcom(0x01);//清屏
	delay(5);
}