25.类，对象，成员实例

(@_@)

第一种写法：
#include <iostream>
6 k5 X7 u- X6 c+ P3 S+ eusing namespace std;
class Human
{
public:
void GetHeight(){cout<<Height;}
* g# l" e" Y. x: P1 w2 @& C void GetWeight(){cout<<Weight;}
void SetHeight(int x){Height=x;}
void SetWeight(int y){Weight=y;}
7 T. C8 D$ u2 z6 S1 Yprivate:
3 t4 I' _( x3 z; N  W4 W# ^ int Height;
int Weight;
};

" o7 R1 K: E7 ~: I/ Q  Z8 k- O5 wvoid main(void)
{
$ I1 g$ M6 N& c( w$ n9 b   Human Lee;
   Lee.SetHeight(172);
" N  ~5 l$ X6 k( R: k   cout<<"Lee的身高是：";
$ C" |& ~6 ?; b% T0 y- [   Lee.GetHeight();
   cout<<endl;
1 S& A# j3 V- Y   Lee.SetWeight(120);
) \) u' Q1 U- G8 `8 b7 i/ M& ?   cout<<"Lee的体重是：";
   Lee.GetWeight();
5 m8 Y  q' F# h# Y   cout<<endl;
}
第二种写法：
#include <iostream>
4 c" }$ N/ O; m6 V' G& M% y% H! kusing namespace std;
class Human
{
4 X7 p" ~- x6 L7 Epublic:
: C% h% ^0 W) r7 f3 t void GetHeight();
    void GetWeight();
7 \- Y, O# u  B) F- D3 W+ q+ e; i+ l void SetHeight(int x);
) h6 ^5 Z- a4 W4 z void SetWeight(int y);
private:
* a* G1 P- W$ O int Height;
# j" R& T3 p2 Y9 T! {' ~3 D$ s4 a int Weight;
};
void Human::SetHeight(int x)
{
Height=x;
  Q9 D; ]/ y0 ^: M$ O" `- V  e9 H}
void Human::GetHeight()
3 T/ |5 v& E3 b& c; t3 a{
) J7 \+ W6 K# ]8 x! D5 a cout<<Height;
}
' {% ^; y& B( M: `7 }8 o) Q0 dvoid Human::SetWeight(int y)
2 Z2 R3 k$ u2 r; n3 S{
Weight=y;
}
* }% R5 c6 x$ r/ t6 Y' ?. R6 X9 Cvoid Human::GetWeight()
{
cout<<Weight;
}
7 ]7 [; O. |. Mvoid main(void)
{
   Human Lee;
2 y* G7 G3 o* p, ]- b# r& V  R: Z; G   Lee.SetHeight(172);
0 L. f& W% Q( h5 ]  s   cout<<"Lee的身高是：";
/ B/ F: O& n8 J( E% w   Lee.GetHeight();
   cout<<endl;
   Lee.SetWeight(120);
, X( z% y$ `2 g/ j6 M7 e0 V   cout<<"Lee的体重是：";
   Lee.GetWeight();
* }4 {4 j0 o2 a5 Z4 W  D   cout<<endl;
}
推荐第二种写法
. U5 N5 c& o9 r/ w2 ], `, S