程序:
#include<at89x51.h>
unsigned char LED[]={0XC0,0XF9,0XA4,0XB0,0X99,0X92,
0X82,0XF8,0X80,0X90,0X88,0X83,
0XC6,0XA1,0X86,0X8E,0X89,0XC7,
0X8C,0XC1,0XBF,0X7F,0XFF};//库
unsigned char m[8];//输出的个数
unsigned char num[]={0,1,2,3,4,5,6,7,};//从库里调的
unsigned char hello[]={20,16,14,17,17,0,20,22};//从库里调的
unsigned char q[]={8,9,10,11,12,13,14,15}; //从库里调的
void show(void)// 定义的值
{
unsigned char w;
unsigned int k;
for(w=0;w<8;w++)
{
P2=0XFF;P0=LED[m[w]];P2=~(1<<w);
for(k=500;k>0;k--);
}
} // 延时
void main()
{
unsigned char n;
while(1)
{
for(n=0;n<8;n++)m[n]=num[n];
for(n=0;n<20;n++)show();
for(n=0;n<8;n++)m[n]=hello[n];
for(n=0;n<20;n++)show();
for(n=0;n<8;n++)m[n]=q[n];
for(n=0;n<20;n++)show();
}
仿真图:
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