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25.类,对象,成员实例

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发表于 2013-3-9 00:28:28 | 显示全部楼层 |阅读模式

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第一种写法:
. I* q8 D7 |. G( R#include <iostream>" c) v  e8 @& c5 a. T9 I' g3 |
using namespace std;
7 R+ {! c9 h+ S( P' ^) T- }. S/ d7 D6 Xclass Human
' S3 O6 x9 L( i{
& B# \$ _& H1 A. Apublic:
) L% F: E7 I) E2 u void GetHeight(){cout<<Height;}
/ y  k& W- r* m8 n- [ void GetWeight(){cout<<Weight;}
+ X% X6 {, V2 F void SetHeight(int x){Height=x;}6 v- c' V' r  W0 y) l5 t
void SetWeight(int y){Weight=y;}* K0 I) X7 F) t6 B4 s
private:
' O, c  o; G; n7 b# z int Height;
4 ^8 ^4 u& ^% b) w6 E: v int Weight;
" }- D5 j6 ~" E5 U1 a6 I" K};+ t9 j% ^+ z# D6 U& Z
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void main(void)0 X) p  x/ S# q
{
( ~7 J! x5 V5 H! Z   Human Lee;
" I* U. f4 {( z& O: t   Lee.SetHeight(172);
  x1 e  `/ I" E8 A3 U0 H# X7 s' x   cout<<"Lee的身高是:";
$ m1 E/ h! `+ X; g+ X/ a6 z9 }   Lee.GetHeight();% E0 @5 `  c8 G9 T1 c/ M( W
   cout<<endl;5 A6 y  m, }! P$ W( K( e: R) h$ N
   Lee.SetWeight(120);
' Q7 i6 A8 o! ?; V& H4 T) w   cout<<"Lee的体重是:";
" X/ R3 @  v  o9 a) z7 g   Lee.GetWeight();
( a2 t# Q+ A$ D) M- z7 @6 r, v   cout<<endl;
0 ]- F: ~: E- E- x}& v+ d4 j. r4 y/ e8 i
第二种写法:
1 x  ?; M9 Z/ {1 Q+ i  F& {#include <iostream>. W9 k: z  J( s* D
using namespace std;
" E( c, h& {% C  |: Y% K, o: K  A+ Fclass Human
/ _5 Z0 N  W& H% ]4 C* f" D* p{+ [8 u* ~/ n- [
public:; P! }% c& r9 l9 x9 X
void GetHeight();, V& \4 F& A+ `
    void GetWeight();: t+ d. l) [1 z: q4 }
void SetHeight(int x);
; Q6 b- G9 y/ U7 Z3 j void SetWeight(int y);
5 h$ l; |' `; W! @& eprivate:
' `- R* C5 `$ N1 p  z int Height;0 y0 ^; x3 |0 P9 C) X8 ^5 H
int Weight;
9 E" p) O$ D8 A( i7 V+ ~8 w};
5 A. V1 S, n; R7 y* G4 Ivoid Human::SetHeight(int x)% |7 z( K( W3 {" [- A
{/ f0 U0 B  S. q% b; ?& b
Height=x;* }: m1 }. q, N8 e
}( r) e: O7 R9 W# X  \' T: w' z3 r. r
void Human::GetHeight()/ N% O+ H; k% d8 V, l' g" d4 J
{
- s" n: x/ K1 c cout<<Height;
/ B' i5 }8 J2 K6 c# }! p}
+ c$ i8 a3 G0 L$ ~' N2 @void Human::SetWeight(int y)( d6 K. U5 h  p& c: f' y& U# y0 P
{7 X1 L2 p/ j0 O! c
Weight=y;
7 A1 K7 y$ Q1 Q" f8 k}8 w  g! m! Q3 i; M
void Human::GetWeight()5 L' q& P# q( ~, P3 f$ E
{$ R. i! z- p, M, e" }
cout<<Weight;
* _0 @# @; X* W: X- k}: \9 u1 `2 E2 U  p* F
void main(void)) r$ u$ b# Z6 a7 T& o# c4 Z
{, Y. i2 e+ [; w. d3 L4 l& D' Z
   Human Lee;  W6 h6 X0 D3 O7 {3 }
   Lee.SetHeight(172);9 }1 S7 l' \  @$ G
   cout<<"Lee的身高是:";
( h9 U5 O/ i$ M/ V9 M   Lee.GetHeight();  T( ~5 U; n" s) K1 ~1 G, E
   cout<<endl;
& E1 ~0 l* J% _1 u( f8 I$ e' w; Q   Lee.SetWeight(120);
6 m6 ^; \  f0 S- w3 [& R   cout<<"Lee的体重是:";
8 @7 c' Y& K/ W( h, u# q   Lee.GetWeight();$ ^5 k3 {$ E) z7 j# t
   cout<<endl;0 o" R0 M% I9 ~- k9 G$ Q/ ^
}( N" G6 a* r1 k2 }, e
推荐第二种写法; L) Q- |8 o+ e! _; U* o* f' a) T

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