图形接法
/*************** writer:shopping.w ******************/
#include <at89x51.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
sbit RS = P2^0;
sbit RW = P2^1;
sbit EN = P2^2;
//延时 毫秒
void Delayms(uint ms)
{
uchar i;
while(ms--)
{
for(i=0;i<120;i++);
}
}
//检查液晶状态
uchar Busy_Check()