51单片机数码管，用动态显示0到123怎么编程？
0-1 2 3 ，需要三位数字管。
#include#define uchar unsigned char;uchar disstab[]={0x3 f,0x06 ,0x5 b,0x4 f,0x6 6 ,0x6 d,0x7 d,0x07 ,0x7 f,0x6 f,0x7 7 ,0x7 c,0x3 9 ,0x5 e,0x7 9 ,0x7 1 ,0x00}; // 0至fuchar编号，dat [3 ]，nn = 0，cnt = 0 ;; void t0isr（）中断1 {th0 =（6 5 5 3 6 -5 000）/2 5 6 ; tl0 =（6 5 5 3 6 -5 000）％2 5 6 ; num ber ++; number％= 3 ; p2 = 0x01 << number; p0 = disstab [dat [number]]; cnt ++; if（cnt> 9 9 ）{cnt = 0; nn ++; nn％= 1 2 4 ; dat [0] = nn/1 00; dat [1 ] =（nn％1 00）/1 0; dat [2 ] = nn％1 0; }} main（）{tmod = 0x01 ; th0 =（6 5 5 3 6 -5 000）/2 5 6 ; tl0 =（6 5 5 3 6 -5 000）％2 5 6 ; tr0 = 1 ; et0 = 1 ; et0 = 1 ; ea = 1 ; ea = 1 ; while（1 ）;}}}}}
用51单片机程序显示3位7段数码管，求具体程序
假设这是一个总阴极数字管，输入端子连接到微控制器的端口P1 ，并且总阴极连接到0.1 .2 端口P2 的接触。
我的程序如下，目前显示编号1 2 3 ＃inculce typedefunsignedchint8 ; typedefunsignedtuint1 6 ; Typedflongintuint3 2 ; copeuint8 number [] = {0x3 f，0x06 .0x5 b，0x4 f，0x6 6 .0x6 d，0x7 .07 f，0x7 f，0x7 f，0x7 f。
oiddelai_ms（uint1 6 x）// 1 ms延迟{uint8 i = 1 2 1 ; 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 VENUE000000000000000000000000000000 f00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000＆ ） 我-; x-;}} vooidxianshi（uint1 6 x）{uint8 i = 0; for（i = 0; i
利用51单片机和3位数码管实现10分钟内的简易计时器
Modified as follows: #include#define uint unsigned int#define uchar unsigned char uchar code table[]={0x3 f,0x06 ,0x5 b,0x4 f,0x6 6 ,0x6 d,0x7 d,0x07 ,0x7 f,0x6 f,0x7 7 ,0x7 c,0x3 9 ,0x5 e，0x7 9 ,0x7 1 }; sbit key1 = p2 ^7 ; sbit key2 = p2 ^6 ; sbit weih = p3 ^0; sbit weim = p3 ^1 ; sbit weil = p3 ^2 ; uint num = 0，uint num = 0，ge = 0，ge = 0，shi = 0，shi = 0，shi = 0，fen = 0，k; // num用于计数，ge是每个位的显示，shi是十位的显示，而fen是minute show void delayms（uint xmms）的显示{uint I，j; for（i = xms; i> 0; i> 0; i-）// i = xmm for（j = 1 1 0; j> 0; j - ）;} uchar key1 scan（void）{if（key1 == 0）{delayms（1 0）; if（key1 == 0）{while（！key1 ）; r turn 1 ;}返回0;} uchar key2 scan（void）{if（key2 == 0）{delayms（1 0）; if（key2 == 0）{while（！key2 ）; return 1 ; return 1 ;}} return;} void showtime（void showtime（ ）/2 5 6 ; tl0 =（6 5 5 3 6 -5 000）％2 5 6 ; num ++; num％= 3 ; switch（num）{情况0：weil = 1 ; //显示秒的单位数字p1 = 0xff; p1 = table [ge]; delayms（5 ）; weil = 0; break; break; case 1 ：weim = 1 ; //显示秒的十个数字p1 = 0xff; p1 = table e [shi]; delayms（5 ）; weim = 0; break; break; case 2 ：weih = 1 ; //显示分钟，仅0-9 p1 = 0xff; p1 = table [fen]; delayms（5 ）; weih = 0; break;} void main（）{tmod = 0x01 ; th0 =（6 5 5 3 6 -5 000）/2 5 6 /2 5 6 /2 5 6 ; tl0 =（6 5 5 5 3 6 -5 000）％2 5 6 ; tr0 = 1 ; et0 = 1 ; ea = 1 ; num = 0; num = 0; while（1 ）{if（（（key1 scan（）== 1 ）&&（key2 scan（）！= 1 ））break; //按键1 ，键2 不按以启动定时}，而（1 ）{ - ge> 9 ）{
在51单片机中用数码管可不可以单独显示超过255的三位数字？
当然可以。
