#include<reg52.h>//该程序实现的时1，2，3，4，5，6依次变化
#define uchar unsigned char
#define uint unsigned int
sbit dula=P2^6;
sbit wela=P2^7;
uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};
void delayms(uint);
void main()
{
	while(1)
		{
			dula=1;
			P0=table[1];
			dula=0;
			P0=0xff;
			wela=1;
			P0=0xfe;
			wela=0;
			delayms(500);

		
			dula=1;
			P0=table[2];
			dula=0;
			P0=0xff;
			wela=1;
			P0=0xfd;
			wela=0;
			delayms(500);

			dula=1;
			P0=table[3];
			dula=0;
			P0=0xff;
			wela=1;
			P0=0xfb;
			wela=0;
			delayms(500);

			dula=1;
			P0=table[4];
			dula=0;
			P0=0xff;
			wela=1;
			P0=0xf7;
			wela=0;
			delayms(500);

			dula=1;
			P0=table[5];
			dula=0;
			P0=0xff;
			wela=1;
			P0=0xef;
			wela=0;
			delayms(500);

			dula=1;
			P0=table[6];
			dula=0;
			P0=0xff;
			wela=1;
			P0=0xdf;
			wela=0;
			delayms(500);
		}
	}


void delayms(uint xms)//延时
{
	uint x,y;
	for(x=xms;x>0;x--)
		for(y=110;y>0;y--);
}