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求大佬帮忙看一看改一改吧,为什么只能显示个位,显示不了十位百位?' L7 H9 ?! W, B: B# D
#include<reg51.h>
* A( ?4 l* ?' Z2 v L6 h/ Y#define uint unsigned int
# _' x: [! d M* O#define uchar unsigned charsbit P2_3=P2^3;$ F% j4 a$ R# k8 x1 d
sbit k1=P3^4;; Z# o4 H' F4 ]3 @* X& z
sbit k2=P3^5;$ a* Z$ y2 c- g. B
sbit k3=P3^6;- P0 P8 ]$ j2 C8 h: i
sbit k4=P3^7;- S5 Y0 v a; I* M8 l
sbit dula=P2^6;8 v5 V- ]$ k3 j
sbit wela=P2^7;; k" v4 V+ I7 e( k( W
uint pwm,num;: u5 p8 i. K* _4 U( _/ v1 g
uchar temp,a;
( E( ~$ s2 q9 Auchar code table[]=8 m+ ~/ O- ^/ \3 O( t7 M0 ~# [
{ 0x3f ,0x06 ,0x5b ,0x4f,0x66 ,0x6d, 0x7d ,0x07 ,0x7f, 0x6f} w2 I0 k! W4 V) r
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uint G_H,G_L,D_H,D_L;void delay(uint t){uint x,y;for(x=t;x>0;x--)
\6 v! N% s' U; S$ N& F" Y for(y=150;y>0;y--);* P+ n% O" D, Q9 \+ p
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void display(pwm)
, C) ]6 x0 M, F k8 C1 y+ y{
, n. b5 ^; t" o/ I+ @unsigned char m,n,q;m=pwm/100;n=pwm/100%10;q=pwm%10;
( C" F# V+ f4 L+ {# e3 n% i dula=1 0=table[m];dula=0;wela=1 0=0xfe;wela=0;delay(1);
( g0 v8 u: }% a, w! s dula=1 0=table[n];dula=0;wela=1;P0=0xfd;wela=0;delay(1);7 d" Q* P" p! v
dula=1;
& F: S- A' A( E/ { C5 W( ^P0=table[q];8 e" X3 Z$ w; m) H5 e
dula=0;
u. @/ b( b; t) e% U' H& `! ~wela=1;
; I' M5 S6 j% n6 x5 |: |P0=0xfb;
. W5 r0 c" A2 Y. ^- Y) `4 Q# }2 j& bwela=0;2 [5 ~7 l: V6 a
delay(1);
1 M$ O! a& e( m6 B$ t}
1 `3 F% k$ ^2 Ovoid main()3 N* c2 \* {, I1 { f e' |" D
{ EA=1; ET0=1; TMOD=0x01; TR0=1; P2_3=0; while(1) { G_H=(65536-pwm)/256; G_L=(65536-pwm)%256; D_H=(65536-100+pwm)/256; D_L=(65536-100+pwm)%256; if(k1==0) {delay(10);while(!k1);TR0=1;pwm=50;} if(k2==0) {delay(10);while(!k2);pwm=(pwm==100)?100 pwm+1);} if(k3==0) {delay(10);while(!k3);pwm=(pwm==0)?0 pwm-1);} if(k4==0) {delay(10);while(!k4);TR0=0;P2_3=0;pwm=0;} TF0=0; display(pwm); }}
+ U& y7 o( x. yvoid timer0() interrupt 1{ P2_3=~P2_3; if(P2_3==1) {TH0=G_H;TL0=G_L;} if(P2_3==0) {TH0=D_H;TL0=D_L;}}
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