#include "reg52.h" //此文件中定义了单片机的一些特殊功能寄存器
typedef unsigned int u16; //对数据类型进行声明定义
typedef unsigned int u2;
typedef unsigned char u8;
u8 code smgduan[17]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};//显示0~F的值
void delay(u16 i)
{
while(i--);
}
void main()
{
u2 i;
P0=0x00;
while(1)
{
for(i=0;i<18;i++)
{
P0=~smgduan[i];
delay(100000);
}
}
}
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