25.类，对象，成员实例

(@_@)

第一种写法：
#include <iostream>
using namespace std;
class Human
' c0 b6 q3 E& k$ o) D1 W* T{
public:
void GetHeight(){cout<<Height;}
$ ^; d7 }& p; T void GetWeight(){cout<<Weight;}
- A4 c6 N) y& r7 ~/ R# z void SetHeight(int x){Height=x;}
void SetWeight(int y){Weight=y;}
4 a' U8 e% z/ |. i& ]; J8 c4 v- Yprivate:
int Height;
int Weight;
" n0 s4 n) G5 o* H6 C};

void main(void)
{
! K5 B8 d' r" k- N& C3 K   Human Lee;
   Lee.SetHeight(172);
   cout<<"Lee的身高是：";
$ w) ]% n" F9 q7 i! g1 }   Lee.GetHeight();
   cout<<endl;
   Lee.SetWeight(120);
   cout<<"Lee的体重是：";
   Lee.GetWeight();
   cout<<endl;
) ^9 }: h4 W. ~+ w4 r}
第二种写法：
  W- u' E" a8 J+ N: t#include <iostream>
% b' @( R7 v% R6 f  r! v) {using namespace std;
class Human
7 K8 S# }* [9 ?+ |4 v5 `; B{
public:
void GetHeight();
- q. I- Y$ S0 y    void GetWeight();
void SetHeight(int x);
void SetWeight(int y);
. O% T8 s0 @# ]) f$ t. Xprivate:
int Height;
0 l7 O: {$ [6 d$ d# b% k6 P int Weight;
};
" N$ ^( E1 l: m- lvoid Human::SetHeight(int x)
" N7 K( v8 l" ]5 i4 m- }4 v6 w{
; [/ k' u' j# q Height=x;
' X0 e% z9 T  t}
# u' X7 a1 m# e$ s& u# ~void Human::GetHeight()
{
cout<<Height;
}
. H$ \' e$ `' r0 f" Mvoid Human::SetWeight(int y)
) N. T! v: I  A+ J{
3 N4 s! t4 L, N  ~* `4 m) v  d Weight=y;
}
void Human::GetWeight()
{
0 w% L  i2 w! C* w( f$ u cout<<Weight;
}
void main(void)
* K4 R3 i+ F) {{
   Human Lee;
   Lee.SetHeight(172);
" @" H) Y9 o& Y1 Q2 L   cout<<"Lee的身高是：";
   Lee.GetHeight();
   cout<<endl;
! ^7 T2 o! U/ ?8 v/ H   Lee.SetWeight(120);
   cout<<"Lee的体重是：";
   Lee.GetWeight();
: g2 E8 T7 q# Y: ~+ M' e  s" |   cout<<endl;
1 _$ b/ v0 V$ |# [}
( a; @  r, L. E( Z8 M; U/ u推荐第二种写法
+ h% N0 |+ Z" U( }
6 s  ^8 i% [' q+ l3 o1 u  j