#include <reg52.h>

sbit bw= P3^0;
sbit sw= P3^1;
sbit gw= P3^2;

unsigned  ZXM[10]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};

main()
{
   int k=456;

   bw=k/100
   sw=k/10/10
   gw=k%10

   
   while(1)
   {
   P0=ZXM[5];
   P3^0=0;
   P3^1=1;
   P3^2=1;
   Delay(800)

   P0=ZXM[6];
   P3^0=1;
   P3^1=0;
   P3^2=1;
   Delay(800)

   P0=ZXM[7];
   P3^0=1;
   P3^1=1;
   P3^2=0;
   Delay(800)
   }

  }

sw=k/10/10Ó¦¸ÃÊÇsw=(k/10)%10
P0=ZXM[5];Ó¦¸ÃÊÇP0=ZXM[bw+1];ÆäËûÏÔʾÒÔ´ËÀàÍÆ¡£

[´ËÌù×ÓÒѾ­±»×÷ÕßÓÚ2020-3-23 17:30±à¼­¹ý]

лл ÂíÉϸÄÕý

лл ÂíÉϸÄÕý  ÇëÎÊ»¹ÓÐÄÄЩµØ·½²»¶Ô   Ò»Ö±¶¼ÎÞ·¨±àÒë

P3^0=0;µÈÕâЩÓï¾äÓ¦¸Ã´íÎ󣬵ȺÅ×ó±ßÖ»ÄÜÊDZäÁ¿£¬²»ÄÜÊDZí´ïʽ¡£ÉèÖÃp3¹Ü½Å¸ßµÍµçλ²»Ó¦¸ÃÒ»¾ä¸³Öµ¾ÍÐÐÂð£¿P3=3,µÚÈý½ÅµÍµç룬µãÁÁµÚÒ»¸öÊýÂë¹Ü£¬P3=5£¬µãÁÁµÚ¶þ¸ö£¬P3=6µãÁÁµÚÈý¸ö¡£

ÇëÎÊÉèÖÃp3¹Ü½Å¸ßµÍµçλΪʲôP3=3,µÚÈý½ÅÊǵ͵çλÒÔ¼°ÁíÍâÁ½¸ö£¬²»Àí½â£¬ÊÇÏëÈÃÈý¸öÊýÂë¹ÜµÄÈý¸öÊý×ÖÓÐͬʱµãÁÁµÄЧ¹û

#include <reg52.h>

sbit bw= P3^0;
sbit sw= P3^1;
sbit gw= P3^2;

unsigned  ZXM[10]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};

main()
{
   int k=0;

   while(1)
   {
k=456;

   P0=ZXM[k%10+1];
   gw=0;
   sw=bw=1;
   Delay(800)
k/=10;
   P0=ZXM[k%10+1];
   sw=0;
   ge=bw=1;
   Delay(800)
k/=10;
   P0=ZXM[k+1];
   bw=0;
   gw=sw=1;
   Delay(800)
   }

  }

[´ËÌù×ÓÒѾ­±»×÷ÕßÓÚ2020-3-23 22:05±à¼­¹ý]

Äã°ÑÕâ¶Îɾµô¾ÍÐÐÁË£¬³ÌÐòÖÐûÓÐʹÓÃÕâ¸ö±äÁ¿¡£»òÕß°ÑÿÐкóÃ涼¼ÓÉÏÒ»¸ö·ÖºÅ¡£

лл

¸Ä³ÉÕâÑù¶ÔÂð
#include <reg52.h>

sbit bw= P3^0;
sbit sw= P3^1;
sbit gw= P3^2;

unsigned  ZXM[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};

main()
{
   int k=456;

   while(1)
   {

   P0=ZXM[(k/100)+1];£]
   bw=1;
   sw=gw=0;
   Delay(800)

   P0=ZXM[(k/10)%10+1];
   sw=1;
   ge=bw=1;
   Delay(800)

   P0=ZXM[k%10+1];
   gw=0;
   bw=sw=1;
   Delay(800)
   }

  }