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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:* z) {: ~3 P9 }
#include <iostream>' O' C: \9 ]$ ~: M8 J- D: l3 A( M
using namespace std;/ p( {" M" s* D6 o! e- T
class Human
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public:
6 V' G0 m0 b& N' I& a2 J6 u8 [8 A( L void GetHeight(){cout<<Height;}" \/ ~0 ?: I/ g( S) V5 _
void GetWeight(){cout<<Weight;}
7 I0 B0 m( P! y! h$ {7 W3 A void SetHeight(int x){Height=x;}
* I. I% s+ k) z& V2 b* @. t void SetWeight(int y){Weight=y;}3 K# w  T$ E& y+ E3 r' a
private:
+ E7 d! b0 s$ o# [/ L4 r; a8 G0 x) A+ R" X int Height;
5 k* a  L& e6 A* y- k$ d int Weight;
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- G8 D+ a9 S- [, Z2 y6 o% Y2 Uvoid main(void)1 S5 ?0 n0 H& d7 d1 E
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   Human Lee;
+ z% w  N" `: {$ r) }+ t  }: ~   Lee.SetHeight(172);
9 N9 t+ g' u& |- M" K$ X4 ^   cout<<"Lee的身高是:";! `" F+ f7 F2 @4 }
   Lee.GetHeight();; g# A5 f4 F4 @8 Y. b
   cout<<endl;3 X! L2 X4 @3 K
   Lee.SetWeight(120);
; c& D2 b' N. u$ T! K   cout<<"Lee的体重是:";
& T: f+ T% K, r# S, {- b   Lee.GetWeight();+ @- s" L2 _, y! Z; F
   cout<<endl;" }. o! T% q' g( x
}  {# F5 }$ ^; e
第二种写法:
0 R* ?# A6 E6 E: h5 U#include <iostream>
! ]9 \4 h$ {! Fusing namespace std;
- q* l& ?) [; r" ]4 [  Tclass Human
) I1 I! ]3 o( }) C. N" z" Y{+ W; w5 m3 n% i9 v5 Y$ ^  Q1 E
public:
! {  A* O9 U$ P& y& v9 R void GetHeight();
" s. _' k" a3 D2 ?    void GetWeight();4 b3 t$ ^4 Y. t
void SetHeight(int x);! F- I) h( ?5 @3 C- x
void SetWeight(int y);
" G$ k) p8 v$ dprivate:3 ]3 ~4 ~0 t* ^, W
int Height;
6 H; M* m! V( q) \( o0 ^/ f int Weight;
4 k; R( H; }1 T+ k0 _- ?( f* h};8 |- c2 R( x! L$ M* K3 E
void Human::SetHeight(int x)# [; E! {9 |$ q7 S
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Height=x;* l8 x! M9 H' m- ~3 `
}, M9 n8 j+ [* U/ J. b4 k; ]
void Human::GetHeight()
1 H; H9 Y1 n8 T{0 J5 s& Z) C/ j  z' r! T: ^
cout<<Height;
3 G2 C+ W3 S0 R4 {# k}
( A/ }% u% A0 N! ^( V$ R# J2 @+ Fvoid Human::SetWeight(int y)  }( g5 P' R7 E; i9 a
{9 l7 k. }7 A- |6 \) y2 X2 o
Weight=y;
, [! [2 A5 h1 j6 T2 m}
5 b& m- K( k) K/ Svoid Human::GetWeight()
9 k/ A. J5 y! J0 {8 Z6 O! W- j{: v% w3 d8 N& K1 P7 b7 u
cout<<Weight;  N, c: S8 f8 s/ n" t- f" o3 w
}
/ ?; B8 v# h% dvoid main(void)
) a9 B/ x* D2 D+ `, [{
& n/ X& j5 M* s9 v( g  q$ v   Human Lee;! B9 x! T. g# X4 K8 s+ x
   Lee.SetHeight(172);: \$ ^: u/ o$ a1 G
   cout<<"Lee的身高是:";% u0 ?% E9 e2 k# s9 b2 V
   Lee.GetHeight();
2 }! j1 L' L% o+ U: z& s5 P   cout<<endl;( g: j7 n* C. v3 M  s
   Lee.SetWeight(120);
  o' M. Q+ Q3 s+ B$ ]$ n. E' U   cout<<"Lee的体重是:";
  j$ p6 C" V4 r  o5 Q- k   Lee.GetWeight();! g9 |9 G' }# L" y( l2 p  ^5 [& o
   cout<<endl;
( ~# ~. f) }! }4 E1 n}% o( M3 |& D8 v1 [' f  Z3 y
推荐第二种写法4 P* W: `+ x% k( G

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