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基于单片机的电子钟仿真原理图如下（proteus仿真工程文件可到本帖附件中下载）
1 _$ u1 ^4 O% k& ~. D3 |$ K) ^. b![]()
5 l4 U0 d6 F1 B, K" s. e1 Z U; M% m" A9 z, z
蓝桥杯任务单片机源程序如下: |
8 {% y* h v2 ^( ?! u#include <regx51.h>/ k/ n, h6 d8 w, U6 h
#include <intrins.h>
8 n& [, |0 T# O7 N" I7 F5 w/ Z) M) I0 D! S1 x
sfr AUXR = 0x8e;
2 y+ N1 }4 |4 y9 k* w% D/*数码管显示字符转换表*/" R. [+ k: |$ H# d" ~9 M
unsigned char tab[] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00,0x40,0x39};
, J7 ~$ b8 b. G/ C% Z1 bsigned char num[] = {10,10,10,10,10,10,10,10}; //数码管显示缓冲区
5 O9 n q+ v* _signed char timeclock[] = {0,0,11,0,0,11,0,0}; //闹钟时间
9 ], E8 d! l5 P$ o( Cunsigned char TRH0,TRL0; //T0重载值的高字节和低字节
( A' x& t' W# Rbit clock = 0; //闹钟时间到标志位
) L% M1 {6 h D# P9 O' Q& [/ Z9 Sbit flag = 0; //1s闪烁标志位
* s( M- U1 R+ a5 Z! Vbit flag200ms = 0; //200ms定时标志位/ N4 @) g5 P8 p9 Z6 ~( F! s
bit timesetup = 0; //时间设置标志位6 x& l+ E0 ^2 |
bit clocksetup = 0; //闹钟设置标志位9 S0 N, m- G: C' \ x% X
unsigned position = 0; //设置小时，分钟，秒标志位（‘1’小时，‘2’分钟，‘3’秒）/ j- a" t9 O- J& o
unsigned char Temp; //温度值, \3 I0 ?1 \1 t7 n
unsigned char Time[5]; //时间值9 P. B; l' p5 O" ~$ y# p# n5 A
8 Z' `' a+ Y5 E& \
void key(); //按键判断执行函数: K3 r& L* Z& B0 U6 X
void Ds1302_Display(); //时间显示函数
6 ^$ Q" O' m Q! bvoid Ds18b20_Display(); //温度显示函数% J6 d& ^& {$ l' x9 y4 J
( ?2 d- Y- h8 q' S5 S4 l: x
extern void Ds1302_Init(); //DS1302初始化函数
% {( u" \0 w! j# G _void Ds1302_Time(unsigned char *time); //带参数的向DS18B20写时间 7 s9 t9 {0 |. [. ?& ]& ~4 Q- }
extern void Write_Ds1302_Byte(unsigned char temp); //向DS1302写入数据
3 v6 G, {7 w2 Z5 @! P8 z1 kextern unsigned char Read_Ds1302 (unsigned char address); //从DS1302读取数据. C" ?, w ~6 d- W v7 {
extern unsigned char DS18B20_Temp(); //读取DS18B20温度值1 U" F+ M! p) S6 i1 M6 T: I" T3 L# _
5 i, m' I3 R( u& x, b- k$ F0 Q7 E5 N! |6 C6 C" p k% j
/*T0初始化函数 （ms = 中断时间）*/
, } G% X1 e+ X |: E# m7 ?$ _void Time0_Init(unsigned char ms)
$ y, \+ z1 E* ?- D5 Y{. u3 j; S! d, K7 O g+ j4 \
unsigned long num; //临时变量% H$ a5 H9 T4 w) y, ]* `
num = 12000000 / 12; //12分频 定时器计数频率2 n( i/ S8 T" g. \1 L
num = (num * ms)/1000; //计算所需的计数值
: d: z S4 X k5 G( |' S+ q0 W3 G" T num = 65536 - num; //计算定时器重载值/ L5 B. v/ m& w
TRH0 = (unsigned char)(num>>8); //定时器重载值拆分为高低字节
4 T* A9 t: d! i7 U! K/ K TRL0 = (unsigned char)num;
_1 d* y/ @0 x+ ~* a TH0 = TRH0; //加载T0重载值
- n! O7 v9 q N2 T* S( P TL0 = TRL0;$ J/ d/ N4 }* z0 |
AUXR &= 0x7F; - T7 K- @2 ?) Q
TMOD &= 0xf0; //清零T0的控制位1 T' y2 _0 T$ M3 |- O
TMOD |= 0x01; //配置T0为模式1 9 S+ \# t6 ?+ |# R: P- E$ v/ S
EA = 1; //使能总中断+ w% _! g0 i5 T, S
ET0 = 1; //使能T0中断
* D+ Z. \# N' }0 I& m9 g6 ~: s2 ]5 F TR0 = 1; //启动T0
- O1 V" G/ R( E& a3 J: f}
& C+ G* g7 O. w! a' s0 v
5 w& ]4 E) |7 x zvoid main()3 {- A# f: S: G
{" O+ k, N& m' V" L
unsigned char i,k=0;
* b+ _; U8 y' r" f8 d! o* q6 I% c5 Y% J% u
Time0_Init(1); //初始化T0，定时时间为1ms+ I ^5 _% i s+ N5 q* h. Y2 a
Ds1302_Init(); //初始化DS1302
! N2 J9 h1 g5 e- h while(1)
* F8 z# v/ u3 B d" ?! x {
7 v% Y. t$ z0 p- Y7 k6 {7 y5 v key(); ! O) |) l8 l/ M( h" e7 V9 {7 s* L
for(i=0;i<8;i++)
4 w0 [! V" a5 Y' C- n {9 v9 e& `. E9 [! J- f1 [
if(num==timeclock)* Y Z; j, a& F5 ?9 z
k++ ;
# Q7 \# C: G' d: a g) J4 B else
3 E4 `$ o+ N5 u( }7 ^ k = 0;; U5 Z9 d+ U4 B+ t2 o) z
}
. E' E6 N( p6 `- ~ if(k == 8)' z+ V+ f! ?, o" r( S9 j
clock = 1;
* Y) k; W6 I+ J3 \
5 q1 p3 g" F0 O' x9 z. l2 t0 W: N& K& ^5 d }
0 d; \) J" _6 I}, b+ W9 N* \* c B4 H
/*DS18B20显示函数*/8 d- t4 f& L1 f" Z! m; h9 u: a
void Ds18b20_Display()
& u" G. R% d2 x{
* E# [+ i! U, D- ~6 U0 Y+ b" `5 z( ?+ x unsigned char i;
" V, b; a# G/ M) @8 X! ?9 B) N7 b* e5 q% C/ ]# M
if(flag200ms != 0)
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/ {1 v3 k4 X$ @5 I! q1 |- Z: s/ \ flag200ms = 0;
4 ]7 P! `% b$ x Temp = DS18B20_Temp();
& M1 c& G/ ^! z* c m
1 m! X5 v5 F' D: k( T% ?8 g for(i=0;i<5;i++)8 ]3 {; A" E7 W9 r
{$ e) @) G v+ l0 L w* k. Z/ b: {3 c
num = 10;
6 W4 Q7 `0 `: X- W9 X, r7 N! _0 v, y }
6 w. Z( [3 T+ n+ j, ? |1 \; ^* J' M; P- ^, z6 t
num[5] = Temp / 10;
+ J1 m6 `% w: ?$ u: I* ? num[6] = Temp % 10;# ~; u1 |' ^- G
num[7] = 12;* t) [! J+ ]; H% E
}
+ t: A( G3 h# z) H! e& T}
9 f' x9 r* s# ^% J/*DS1302显示函数*/3 J$ z2 X! m% w( O$ A% g0 b& Q
void Ds1302_Display()
( c9 y$ x0 v* e/ B8 B/ r( E{
s- F( `0 N. t3 {3 r static unsigned char i;: l, D* }" a% r: W
static unsigned char pers = 0xaa;
$ {% J% A3 q7 @1 @. y% Z, E) e( _2 m7 P8 d& K
: v/ M3 N) b1 V) A; H; ~4 D6 r if(flag200ms != 0)3 a4 e( x* F: x0 @/ ^1 V# y5 q( X
{
9 Z* A$ S8 k3 h) Y9 f G6 @ flag200ms = 0;3 e7 F1 y( F# t( r# ] a/ ?
for(i=0;i<3;i++)
" H( }- E, y8 |) V! \) E {) P% o0 z6 m! h( A- }( j6 k" H
Time = Read_Ds1302(i); //每200ms获取时间
+ c' L3 u# W# u2 b, z: g7 a( w }( s1 `7 |6 ?* J/ a
if(pers != Time[0]) //判断时间有没有变化- D: Y# U% n8 H) V( k1 c/ a
{ ) z( z; e; i) C6 k. E; c) G& ? x
num[7] = Time[0] & 0x0f; //秒( N$ m8 `0 o6 b
num[6] = Time[0] >> 4;" E/ G3 g$ D) A% T
num[5] = 11;
: p( I; H1 v1 I. d2 I" z num[4] = Time[1] & 0x0f; //分
( p6 ^* _0 L: c+ {; W. D num[3] = Time[1] >> 4;
: V1 f2 w9 Y8 I0 o num[2] = 11;+ \4 O* @% ?; r
num[1] = Time[2] & 0x0f; //时& j9 ? R% u o( U. {! W/ O
num[0] = Time[2] >> 4; 0 u$ J$ I" D- H1 P- }
! }0 s7 W# b) c% _/ { pers = Time[0]; //将变化值重新写入判断值
( o+ r- F2 R& l }, X8 A }
1 z n/ T3 }( b4 j% } }
. l4 R S4 Y+ J* i$ J& J( o}
V' I1 R$ x5 G/*数码管显示函数*/
, D( ^2 y; U. w, I1 C0 x/ a# d3 Tvoid Display() / ~8 R- e0 x, _+ O" `/ K
{/ H6 U& a/ g6 f3 e) n' l
static unsigned char we = 0;
; [# T: H& [+ j# k! [- j! M/ F9 F( x1 s8 Q7 I7 o- }1 n5 M9 J
P0 = 0x00; //清除鬼影
0 R* u( F# D! v P2 |= 0xff; ' Q3 X& w% T, p
2 j" A' P+ b0 {6 E9 S( @ P2 &= ~(1<<we); //位选择7 S; p I5 a5 P2 y/ r
if(clocksetup)
% _7 y" Z4 ~) \7 w8 T R+ v% c P0 = tab[timeclock[we]];
* y( M+ P1 K2 O2 b( R2 K else9 h. w2 {' I& H, N
P0 = tab[num[we]]; //显示数选择 ) { T9 d6 d$ h
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if(flag) //进入设置状态
* \5 z" F8 \/ n {
; ?$ ~7 p7 Z- d/ Y7 F9 b4 Q switch(position) //判断是那个设置位
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case 1: P2 |= 0xc0; break; //秒
' j+ m8 ` }- ~8 w9 ?8 e case 2: P2 |= 0x18; break; //分
1 J( \, t# O8 c) W. Z case 3: P2 |= 0x03; break; //时
& I7 \$ X" |$ N7 O' l) Q default : position = 0; timesetup = 0; clocksetup = 0; break;
~1 y* f. I: j4 i \; I5 o% c D7 N }) ] {- B1 j% @, @+ ~0 c# `) @+ D Q4 ~
}
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% H* ]( n1 ]/ O! m! u& w if(++we >= 8) //八个数码管 / d* z# W9 M0 B p$ |3 P; d& ?
we = 0; 1 K/ G5 |$ t2 P2 I
}& d1 f0 y- v5 l% F k+ A/ C
* J( {+ I7 u* K5 `2 V2 n2 [
/*T0中断函数*/
0 x+ a) x6 \$ Z/ u4 fvoid Time0_inte() interrupt 1
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static unsigned char ms = 0;: a m+ D+ i8 }- R( y* e
static unsigned char flag1s = 0;
( p" r, @" d& E' Q static unsigned char flag5s = 0;
! R8 J1 q% I0 f( v; {+ T( `/ R/ Q& V2 x$ `
TH0 = TRH0; //加载T0重载值
& @" O2 W4 _) ~; ?% ` TL0 = TRL0;
( ?% r: _" V5 p8 z: j1 |; d6 q$ O% p7 e V
Display(); //数码管显示6 c [9 h! v& `; W; A2 t. U# ?2 k
/ Q7 h3 G+ B7 r# |5 a8 B8 w
if(++ms >= 200)
$ J9 @- o) l' Z5 z {
. p' s0 _+ d. h" E flag200ms = 1;" c9 x+ n$ J2 H% l! [ B9 A
ms = 0;& e5 i8 e" ? ?
if(flag5s < 5 && clock) //闹钟5秒时间判断
6 B6 M# x2 V# w, |# @( g {
. C3 k6 Q" j) J' Y7 Y4 s7 w P1_0 = ~P1_0;
6 D4 c0 |4 r7 ?5 w }
" D) B! F4 A. j* T+ |. m6 p else3 G1 \, ]8 P; }- Y
{
; \8 i0 I/ t4 A* [5 v9 q. `1 e& C clock = 0;3 |$ V' N$ J1 P! r
P1_0 = 0;* {) w. a! N/ \, Z$ s$ P! M
}
( i, |% [+ q; {: P. ]7 I9 X if(++flag1s >= 5)7 ^" c$ O! [0 v$ J ^* J P4 O
{
$ B0 R5 i( I' n5 h# |- }4 R1 P flag1s = 0;9 I- C4 U/ R- C7 ?$ ?
flag = ~flag;
4 \2 h6 B( W X& _% Y9 z2 W5 G" { if(clock)3 g: }: z0 ?+ U6 Y3 G% E B
flag5s++;
8 v. _/ Z' b0 F, |, x( v/ a, K else, M6 X8 j! o) Y
flag5s = 0;) ^7 P5 k" ]' y- P
}/ {5 U2 l# \5 A; K- B
} & `+ x$ b: `7 x$ s; X1 D# T, P7 M9 Q8 ~
}" E" F( Z" Z) c) d' T* d4 m. f; N
//向DS1302写入时间9 x" |5 L* k, H3 I6 \& f s
void TimeWeite()) i8 f9 T Q7 R. v# c6 }' o
{, \' P& [. i9 h7 B. z" g
unsigned char ti[3]; 5 F( \, H5 v$ T9 N) S
//将两个分开的时间合成在一起
& `# S l& h# Y% k* L8 { ti[0] = ((num[6]<<4) | num[7]);
# G n$ q q) U# _ ti[1] = ((num[3]<<4) | num[4]);- O+ ?# @7 f* N3 @# y
ti[2] = ((num[0]<<4) | num[1]);! o/ Y8 b( Z4 w- ] o8 H% p+ S
( ^! n7 k- T5 K+ e/ b# l6 u6 P9 M1 B
Ds1302_Time(ti);
& L! _) o5 F W& r' f}
7 y+ `: b. O( r7 @5 b, ]4 r! _6 p% Z! M: u4 z2 v6 @
void key()
3 K' t. g0 E M{$ v4 M6 Z! A- ^' L. C
if((P3_0==0||P3_1==0||P3_2==0||P3_3==0)&&clock==1) //闹钟响应，进行关闭6 @, k J! \' \, M2 a2 o7 }
{
) b# X. |+ c z, R! E7 z9 L8 I! p clock = 0;) D @" v/ d& a/ ?: f1 W) C% f
while(!P3_0);while(!P3_1);( B6 D1 U: T/ z; W
while(!P3_2);while(!P3_3);. ]. E! Z% P' l
}# z1 ^: D, r* w
0 N4 H& w, G- j) v% W* v2 e' B
if(timesetup!=1 && clocksetup!=1 && P3_0==1) //按下显示温度值，松开显示时间
, f$ y. t! _/ d* T% x) p {
5 w9 `" l: A8 k7 ~& P Ds1302_Display();' e2 S5 M3 x% G. a0 V
}else if(timesetup!=1 && clocksetup!=1 &&P3_0 == 0)% y. W+ I( j1 F" _# d8 [* Q1 b
{& a- V) S" X8 |+ e
Ds18b20_Display();
4 k* x# B# a8 s n9 I9 e9 f }
$ z- y U( S! O$ S: s d& K B if(clocksetup !=1 && P3_3 == 0) //进入时间设置
- J6 Y- B# H: u" I- \ {
5 k( A# ~6 w. c1 k" C timesetup = 1;& y9 }# @- J+ \* R) E# F, n
position++;) {5 d2 A7 e# m% T' a7 e6 d; O) _0 e
if(position == 4) //向DS1302重新写入时间! C* q6 w/ J" Z8 F2 E3 u
{( v: Q' l- Z/ Y2 E+ g* w7 p
TimeWeite();: H3 o5 A5 Z' ~: d
}
6 r1 y; ?% R7 a7 k' J8 H8 g while(!P3_3);- m% y1 ^; N) ~6 d6 G8 o
}
1 \! F4 g7 m3 P( U$ N7 l2 S' F, R. c if(timesetup !=1 && P3_2 == 0) //进入闹钟时间设置
8 n H9 z: F! N) v; X- _ {& e8 _8 J. b$ I$ v9 t' M5 z4 q( m
clocksetup = 1; D+ q9 t- z7 a8 L8 l! ?5 _# |
position++;! y' P& b. ?5 f ]/ S: f# c
clock = 0;4 n5 _' E6 H, w
while(!P3_2);
& k) l" ?. }$ m7 _* m }
; |6 i' x8 O" @( y if((timesetup==1||clocksetup==1) && P3_0 == 0) //进入时间设置， 时间+1
: N9 u8 C/ p* X- c9 O {
/ ?7 F4 D" P! Q- E5 H if(timesetup) //实时时钟设置6 B3 S7 x0 M5 L$ c! F) U' b5 V
{+ M$ W4 g4 I' v& n
if(position == 1) //秒
3 K3 g+ _0 q2 t' x' R {
. L, }, J" Q4 C. j: l if(++num[7] >= 10)" |6 z8 M; A; Z0 k
{+ J: [% L0 i) d/ M
num[7] = 0;9 y9 o) U( |. c" {- n
if(++num[6] >=6)
" ^/ z( O: J2 U8 |1 {8 O num[6] = 0;" D/ \ q# h3 J+ U; r
}8 U3 f# ]6 [6 A. x3 q# W4 l/ G0 L
}else
4 a$ c- k/ ~; C+ w3 y$ z if(position == 2) //分
8 {& o$ x% e9 ]! X) t1 @ {
A0 ?: _0 s5 | if(++num[4] >= 10)
0 n; O0 T/ U( H9 g {3 W, N6 @2 ]" X& |( j
num[4] = 0;
- j% l/ v/ I T if(++num[3] >=6)
% [0 c) J/ V' \3 [' d num[3] = 0;
1 A {2 N+ A! C S5 b2 i7 e }) ^: L9 h# a9 y
}else
) R+ G, }8 I9 B, {' G if(position == 3) //时
2 q/ g% b' v. J# l0 @" U {. j* L7 D% k* t( v7 b0 N# k6 S
if(num[0] == 2)- U H* h0 T, r9 ^
{
/ z6 B8 F# A1 P8 U7 h if(++num[1] >= 5)
. ~1 P) B% L6 y {
9 Y/ } K" `1 ]+ R1 n% F num[1] = 0;& J+ c: }7 M8 J# K8 W3 f9 m
num[0] = 0;" X- h3 V f$ m: g& _2 e; D! v
} % a0 i" ]% J( U$ r
}else8 B" c1 z# h, z6 W
if(++num[1] >= 10)( Y9 R* s# f/ @! t" S) q
{8 u8 R% v( j* k; b! K1 X& g
num[1] = 0;( J% J$ e& [) P* H6 @
if(++num[0] >=3): H7 L) C4 U5 F4 y% Y2 g
num[0] = 0;
6 ^- t* \# {* c% j }
( |+ b: L* A, G P( \ }# S- a Q7 @# ^; \ f* i# {( T
}else if(clocksetup) //闹钟时间设置
}9 k: J( A' h) z) C4 | {: K* i, T- L6 Y* r0 Y7 D8 o
if(position == 1) //秒6 c; E8 ]0 l* y/ u1 s
{
; L. k& o1 y( U; p8 Z if(++timeclock[7] >= 10)5 @3 c: u1 }* c) P
{
5 a$ L) p1 L) A timeclock[7] = 0;; g3 n( d5 T, A( s
if(++timeclock[6] >=6): s1 c4 S! {% @" ~; U
timeclock[6] = 0;, R0 H# p/ l1 s; }. U8 c
}
7 A0 @. b; |+ I h/ |/ e }else
7 E; p2 r; v) o; m2 R if(position == 2) //分1 j9 e7 ^; c+ e4 }* Q) s1 }
{: z3 M: S& B+ [' g, ~) ]5 m
if(++timeclock[4] >= 10)
) e `( r$ D+ T1 q& T. \ {
9 @; K; Z0 e' W2 D( D, y8 Q9 x timeclock[4] = 0;
& e4 U- u6 n4 t( D. `. u. h- o8 w if(++timeclock[3] >=6)
5 h. ?; e$ {% j7 @ timeclock[3] = 0;
* E, T% A# H+ c4 |0 }8 R5 |0 q }
1 L' x8 G- {) U$ k# }1 o o }else6 f/ B% P* s! l' `
if(position == 3) //时: Q, B" ]7 c7 [! F
{5 D% d7 i2 I! `
if(timeclock[0] == 2)% W( p5 T- f& X
{
& C7 {! L" x p& y if(++timeclock[1] >= 4)
% O0 k! o7 t0 i+ ^ {: C s4 X" G2 e; m" Q: A! Q
timeclock[1] = 0;
/ N8 q& Z5 ?. C8 @* { timeclock[0] = 0;
% P% @1 A, h6 I) N: }* J; K } 6 B5 p/ w& X" p' F( c A3 K3 ^/ O
}else
$ e" L" @4 m) j- O$ A if(++timeclock[1] >= 10)
1 X) t( n" V& N {
% V( w0 [. }2 a8 E4 b timeclock[1] = 0;# n0 S3 s% h8 t
if(++timeclock[0] >=3) E( V( J- ]/ i2 k7 e! v
timeclock[0] = 0;( a0 [$ |( c" b* k: i3 S
}5 {! v7 r2 i2 _& R
}
( A: m* x: Y1 h5 {+ n& o* ] }% y3 U7 O7 w1 ~! k n# K+ p4 B+ J7 x
while(!P3_0);1 K+ {0 l1 O7 Z5 C9 z& a8 ?
}8 w4 `( i4 C2 Y: p9 c# J
if((timesetup==1||clocksetup==1) && P3_1 == 0) //进入时间设置， 时间-1
# J p5 S4 P( X/ L0 o { 9 z' N: h- [( Q u, T+ [' H" L; p
if(timesetup) //实时时钟设置: J7 @7 O2 n- m+ _, @
{, t" c5 N4 w+ n, G! \, @
if(position == 1) //秒
# X1 L7 j% j5 F: t# k0 q {; V3 B2 r6 A! U% [
if(--num[7] < 0)
( Z1 q' `! C, [5 P) S" {: W {
! t* ?3 i6 d8 |2 @8 h# Q9 L ^ num[7] = 9;$ Y) _' r5 ~' s2 L: B' E- D
if(--num[6] < 0)
$ m' R, a7 K6 n2 A num[6] = 5;8 r- r9 j( y% U& r& u
}4 x, D4 Q( e5 m2 Z# `7 i
}else2 D+ T! `8 P8 `4 a
if(position == 2) //分
6 S9 E+ E! s( v/ Q+ B/ I. j( a {) d) C2 y% d. w
if(--num[4] < 0)
5 i% D! C' a; D1 D' K {1 W+ J+ G! T% l K
num[4] = 9;
6 W7 [/ v7 o# N# r: ~: R if(--num[3] < 0)5 h3 T1 H$ G/ \$ Y+ k3 j' D
num[3] = 5;
, o% h# i' v4 l! V" C# f }# o4 J2 I* z) C f" B
}else
7 T1 _) x. \5 L% j if(position == 3) //时3 X' y! ]5 P, I9 S( @$ L$ z( a$ v8 L
{
+ G9 a0 N* @5 Y8 k$ L2 R if(--num[1] < 0)& z3 s; I i) ^% H, e4 M
{9 U; H# ]. K4 |% l9 q) s9 M/ y
num[1] = 9;
) Y1 Q8 n: o2 X( _2 e; @# u if(--num[0] < 0)
0 X* X/ ]1 ~+ U! l {2 T; T& C6 s2 m# @
num[0] = 2;
, a9 ]" p1 w- f, X1 B$ H0 G- @……………………
2 {( Z1 h ~% W7 D
$ [9 c* t- Z1 N( w…………限于本文篇幅 余下代码请从eda365.com下载附件…………$ E7 ^9 a. u" v5 k* j. y
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发表于 2018-11-7 10:02
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