#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
sbit dula=P2^6;
sbit wela=P2^7;
uchar num;
uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
void delay(uint z);
void main()
{
EA=1;//开总中断
EX0=1;//开外部中断
wela=1;
P0=0x3c;
wela=0;
while (1)
{
P1=0xff;
for(num=0;num<16;num++)
{
dula=1;
P0=table[num];
dula=0;
delay(1000);
}
}
}
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void enter0() interrupt 0
{
while(1)
{
P1=0x7e;
delay(500);
P1=0xbd;
delay(500);
P1=0xdb;
delay(500);
P1=0xe7;
delay(500);
P1=0xdb;
delay(500);
P1=0xbd;
delay(500);
P1=0x7e;
delay(500);
}
}
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