25.类，对象，成员实例

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第一种写法：
#include <iostream>
# _: I( q7 a" U( Z2 Jusing namespace std;
2 I4 U8 s8 Z1 H$ \* V5 _class Human
. z) ]$ J- z7 w) V{
/ h8 r6 \0 W- o8 E  o) y5 T) w! @& Tpublic:
void GetHeight(){cout<<Height;}
/ W* h/ k$ _4 Q; ]! i void GetWeight(){cout<<Weight;}
: x# A1 g8 N- D+ z8 w void SetHeight(int x){Height=x;}
void SetWeight(int y){Weight=y;}
, M& T+ _& g: t/ G  W/ Cprivate:
int Height;
int Weight;
};
7 {  V( V' X% b, ^
void main(void)
( N  x1 @1 x5 Y1 u6 F, G! z/ d{
" Z6 {: f" o9 w   Human Lee;
6 S+ s3 ]6 G& J; x& V, G   Lee.SetHeight(172);
1 F) x: a3 }, J8 I  n( o   cout<<"Lee的身高是：";
   Lee.GetHeight();
) G9 E0 U. X9 V" g   cout<<endl;
   Lee.SetWeight(120);
   cout<<"Lee的体重是：";
4 Z% W; G# K" V; ]8 X+ z   Lee.GetWeight();
   cout<<endl;
0 A7 j+ [0 R5 ^, |3 \6 ?}
! i# P/ K% l- E* f; v% `' L  d第二种写法：
) Z5 _- O3 ?  `( q6 U#include <iostream>
using namespace std;
8 ^/ M  q7 v1 e1 \0 bclass Human
6 V" X$ b' z; g* g{
$ ~0 G/ T$ h  {! Bpublic:
void GetHeight();
    void GetWeight();
void SetHeight(int x);
void SetWeight(int y);
/ t  X2 Y3 {- y2 Qprivate:
int Height;
int Weight;
};
4 c& F2 `" j! I% Jvoid Human::SetHeight(int x)
  F% S# v9 m0 H0 O) ?) F+ d{
Height=x;
* P9 o; ?" `: r2 i; k! ]}
0 u, @5 Q1 \. [7 cvoid Human::GetHeight()
0 z. U' y, h2 Q% N: w% G{
% Y% A$ Z" P' V) P9 ?* d; X cout<<Height;
}
* P, Q  g! g2 H" S* v' _; Zvoid Human::SetWeight(int y)
+ E1 n3 k: m+ }0 W6 y{
% u' ]. I0 Y  D2 h7 e+ g) W& Z Weight=y;
. m3 u5 R* i# x3 [1 ?}
void Human::GetWeight()
# Q$ ]5 y  ^. a' B{
cout<<Weight;
" }! M- w5 Q2 P5 S}
void main(void)
) j$ @( D  N! t  \{
   Human Lee;
# l; x7 g2 D3 v( g% B/ z   Lee.SetHeight(172);
8 Z7 O$ d, m6 T5 R$ N$ }* z   cout<<"Lee的身高是：";
   Lee.GetHeight();
- c' C" q& K( G" W6 S0 f1 H! e: u   cout<<endl;
   Lee.SetWeight(120);
. i  j0 l0 n6 p9 `" L   cout<<"Lee的体重是：";
   Lee.GetWeight();
4 J) H0 {' y( {7 O, f   cout<<endl;
" x' |& a' y) U, Q  W3 R- x6 |2 d6 w}
推荐第二种写法


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