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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?* b2 M* f2 a- r' \
#include<reg51.h>
6 M( q' T( o5 c0 ?: [: y#define uint unsigned int
4 P8 f" e: _' z3 y# e1 [. r#define uchar unsigned charsbit P2_3=P2^3;- _3 x; k3 o9 p2 `
sbit k1=P3^4;
4 O+ C1 |- o" K# t4 Q$ Gsbit k2=P3^5;
2 p, w( i; r) M2 O# p# L( Xsbit k3=P3^6;
0 ?4 _: F6 {/ X2 N5 D: nsbit k4=P3^7;
$ Y5 x" S, m: v& E) Nsbit dula=P2^6;( I0 {3 s5 n8 P$ X$ r4 `
sbit wela=P2^7;
8 L3 S8 K; W0 Z/ R* s. u" Xuint pwm,num;
- l/ h, M8 s! \+ ]! |+ Ruchar temp,a;" U& Q- m" j2 x; f' n
uchar code table[]=7 {8 ^3 ]$ g0 a9 B/ L7 {( o
{ 0x3f ,0x06 ,0x5b ,0x4f,0x66 ,0x6d, 0x7d ,0x07 ,0x7f, 0x6f}' a2 ]4 J6 q2 X1 n7 r
;! a E7 m1 g p! }& P& J
uint G_H,G_L,D_H,D_L;void delay(uint t){uint x,y;for(x=t;x>0;x--)
7 c$ X* e. A9 t: U J* D for(y=150;y>0;y--);8 g( Q( K$ q9 ~; Q2 A. g' K' s
}! M! L- Z+ K6 D
void display(pwm)1 M: b0 a5 t3 f/ F4 X
{
' r) R# v( X T6 Z+ ?" c+ w* Junsigned char m,n,q;m=pwm/100;n=pwm/100%10;q=pwm%10;
6 f! V0 |" R( L! O% L dula=1 0=table[m];dula=0;wela=1 0=0xfe;wela=0;delay(1);
% f3 @0 e' p3 @5 @& s2 v+ y dula=1 0=table[n];dula=0;wela=1;P0=0xfd;wela=0;delay(1);
* P; P5 a* o2 |dula=1;6 G; x* Q( L A
P0=table[q];; L7 ~8 q' g3 @. S
dula=0;; t# \/ h) Y7 f, N# ~ _
wela=1;
' R- `* G. }( w" dP0=0xfb;, j; E7 e# E% @0 U( Z9 y2 T x' s! @
wela=0;+ L- O" }" K$ ~- ?- s k
delay(1);" O- x. t2 |' \- x
}
' |8 g7 J3 l a9 _void main()6 S" a, s. l4 u/ j; 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); }}
- z9 R( M/ r$ S/ u ]4 {void 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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