25.类，对象，成员实例

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第一种写法：
0 x) _- u4 G- y4 K6 q#include <iostream>
9 f( C) K3 ^% @4 cusing namespace std;
class Human
* e9 b: u) P$ o{
public:
void GetHeight(){cout<<Height;}
- ~% x  r9 }6 e' {7 B void GetWeight(){cout<<Weight;}
3 }8 f9 I* T" l* f4 i void SetHeight(int x){Height=x;}
void SetWeight(int y){Weight=y;}
  g" ~8 p: z; L' ^& L  P7 ]private:
& ]; `" {9 i$ [1 \7 j int Height;
- L& a9 c6 l( C+ l int Weight;
};
' Q2 E; X" t+ v: \
% V3 y, r3 U6 Yvoid main(void)
6 W' Z2 ]) i1 M" l+ o{
   Human Lee;
' [* _7 V. M. d4 Z/ T- ^; O3 Z   Lee.SetHeight(172);
$ U& V/ f) e1 c4 N2 m   cout<<"Lee的身高是：";
   Lee.GetHeight();
   cout<<endl;
   Lee.SetWeight(120);
5 P  M* g/ B* A# ^2 D, T( q& W5 M   cout<<"Lee的体重是：";
   Lee.GetWeight();
   cout<<endl;
$ X  O$ V# I7 n}
第二种写法：
' c9 U$ u" w1 w1 ~/ g1 B#include <iostream>
9 ~) V: P; F, r! n# Q- fusing namespace std;
1 _6 K0 H+ J" @' s* lclass Human
3 m" ^  a& E+ h, g8 l# K{
/ v) p6 o6 {3 g: j9 u( a" V/ M0 rpublic:
void GetHeight();
    void GetWeight();
% }: s# L1 m* r8 f( y9 { void SetHeight(int x);
void SetWeight(int y);
private:
int Height;
int Weight;
$ a7 U2 T- \2 W" X1 M! n, V};
void Human::SetHeight(int x)
{
Height=x;
5 P. V3 ]1 G6 t4 P# r2 @}
void Human::GetHeight()
* r0 `1 f5 K# J3 G  T{
9 N' C) Q$ C6 B  N  L cout<<Height;
& {2 c! n6 H- C) z: Y# {8 Y}
void Human::SetWeight(int y)
{
Weight=y;
1 L+ W# Y; W" i5 f}
void Human::GetWeight()
2 Z) n8 k/ h  A) V0 P0 @{
cout<<Weight;
}
void main(void)
{
   Human Lee;
  M+ Z" U& g5 @4 t  f   Lee.SetHeight(172);
   cout<<"Lee的身高是：";
   Lee.GetHeight();
   cout<<endl;
; F; i! F% Q- n! A# B& L   Lee.SetWeight(120);
) W. U' X) c5 B$ B- u- n9 N' y   cout<<"Lee的体重是：";
1 x$ B1 G3 ?3 U6 K& ]' t6 r   Lee.GetWeight();
   cout<<endl;
/ ^# t0 ~; ^' B5 N; {}
推荐第二种写法


) f1 s& q+ f+ q& F: ?