#include <reg51.H>
#include <intrins.h>
#include <delay.h>
sbit  P2_0=P2^0;
sbit  P2_1=P2^1;
sbit  P2_2=P2^2;
sbit  P2_3=P2^3;
sbit  P2_4=P2^4;
sbit  P2_5=P2^5;
sbit  P2_6=P2^6;
sbit  P2_7=P2^7;
sbit P1_0=P1^0;
sbit P1_1=P1^1;
sbit P1_2= P1^2;
sbit P1_3 =P1^3;
sbit P1_4 =P1^4;
sbit P1_5 =P1^5;
sbit P1_6 =P1^6;
sbit P1_7 =P1^7;
sbit P3_0=P3^0;
sbit P3_1=P3^1;
#define flash_time 100
#define A 10
#define B 11
#define C 12
#define D 13
#define E 14
#define F 15
#define N 18 //無(wú)效碼
#define zero 0xfc
#define one 0x60
#define two 0xDA
#define three 0xf2
#define four 0x66
#define five 0xb6
#define six 0xbe
#define seven 0xe0
#define eight 0xfe
#define nine 0xf6

#define leterA 0XEE
#define leterB 0X3E
#define leterC 0X1A
#define leterD 0X7A
#define leterE 0X9E
#define leterF 0X8E
#define leterN 0X2A
#define leterH 0X6E