#include <reg52.h>
void main(void){//定義花樣

   const unsigned char designb[10]={0x28,0xEB,0x32,0xA2,0xE1,0xA4,0x24,0xEA,0x20,0xA0};//0~9

    unsigned int a; //定義循環(huán)用的變量
	unsigned char b,count0,count1,count2,count3,temp; //在C51 編程中因內(nèi)存有限盡可能注意變量類型的使用
	//盡可能使用少字節(jié)的類型，在大型的程序中很受用
	while(1){
		for(temp=0;temp<10;temp++){
			P0 = designb[count0];//讀已定義的花樣數(shù)據(jù)并寫花樣數(shù)據(jù)到P0口,
			P2 = 0XEF;
			for (a=1; a<30000; a++);
			P0 = designb[count1];//讀已定義的花樣數(shù)據(jù)并寫花樣數(shù)據(jù)到P0口,
			P2 = 0XDF;
			for (a=1; a<30000; a++);
			P0 = designb[count2];//讀已定義的花樣數(shù)據(jù)并寫花樣數(shù)據(jù)到P0口,
			P2 = 0XBF;
			for (a=1; a<30000; a++);
			P0 = designb[count3];//讀已定義的花樣數(shù)據(jù)并寫花樣數(shù)據(jù)到P0口,
			P2 = 0X7F;
			for (a=1; a<30000; a++);
		}
		count3++;
		if(count3>9){
			count2++;
			count3=0;
		}
		if(count2>9){
			count1++;
			count2;
		}
		if(count1>9){
			count0++;
			count1=0;
		}
   }
}