【蓝桥杯】——数码管显示

1. 静态显示

#include <STC15F2K60S2.H>
#include<intrins.h>
#define uchar unsigned char   //typedef unsigned char uchar;
#define uint unsigned int			//typedef unsigned int uint;
void Delay1s();
uchar table[]={
    
    0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xbf,0xff};
uchar wei[]={
    
    0x01,0x02,0x40,0x80,0x10,0x20,0x40,0x80};
sbit beer=P0^6;
void main()
{
    
      
	uint i;
	P2=0xa0;beer=0;P2=0X00;
    P2=0xc0;P0=0XFF;P2=0X00;
	P2=0XF0;P0=0XFF;
	while(1)
		{
    
      
			for(i=0;i<10;i++)		
			{
    
    
				P0=table[i];
				Delay1s();
		  }
		}
}
void Delay1s()		//@11.0592MHz
{
    
    
	unsigned char i, j, k;

	_nop_();
	_nop_();
	i = 43;
	j = 6;
	k = 203;
	do
	{
    
    
		do
		{
    
    
			while (--k);
		} while (--j);
	} while (--i);
}

2. 动态显示

#include <STC15F2K60S2.H>
#include<intrins.h>
void delay_ms(int n);
void display_num(unsigned char w,unsigned char n);
unsigned char which[] = {
    
    0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
unsigned char num[] = {
    
    0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
void delay_ms(int n)
{
    
    
	int i,j;
	for(i=n;i>0;i--)
		for(j=110;j>0;j--);
}
void main()
{
    
    
	int j;
	while(1)
	{
    
    
		for(j=0;j<9;j++)
		{
    
    
			display_num(j,j);
	  }	
  }
}
void display_num(unsigned char w,unsigned char n)//wµÚ¼¸¸öÊýÂë¹Ü£¬nÏÔʾʲôÊý×Ö
{
    
    
	P2 = (P2&0x1f)|0xc0;
	P0 = which[w-1];	
	P2 = (P2&0x1f)|0xe0;
	P0 = num[n];
	delay_ms(5);
	P0 = 0xFF; 
	P2 &= 0x1f;
	
}