27,372
社区成员
发帖
与我相关
我的任务
分享
#include<reg52.h>
char clear = 0xff;
sbit wela1 = P2^4;
sbit wela2 = P2^5;
sbit wela3 = P2^6;
sbit wela4 = P2^7;
unsigned char code table[] = {0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71,0};
void delay(int z)
{
int x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void display( char one,char two,char three,char four )
{
wela1 = wela2 = wela3 = wela4 = 1;
wela1 = 0;
P0 = clear;
P0 = table[one];
wela1 = 1;
delay(5);
wela2 = 0;
P0 = clear;
P0 = table[two];
wela2 = 1;
delay(5);
wela3 = 0;
P0 = clear;
P0 = table[three];
wela3 = 1;
delay(5);
wela4 = 0;
P0 = clear;
P0 = table[four];
wela4 = 1;
delay(5);
}
void main()
{
display(1,2,3,4);
}