25.类，对象，成员实例

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第一种写法：
#include <iostream>
) M6 L8 }3 d# F4 m" Cusing namespace std;
/ f1 D! y" m# [" {class Human
5 d; I/ @! T. B% n  p. i{
* N# x1 _$ c9 b1 W6 f0 epublic:
void GetHeight(){cout<<Height;}
. @3 S7 h; @  f void GetWeight(){cout<<Weight;}
( |" Z( O0 ~0 n& I- \ void SetHeight(int x){Height=x;}
void SetWeight(int y){Weight=y;}
8 E6 H6 w2 {: g0 w0 Yprivate:
- D$ @; Q4 ~+ W$ \/ l" p; D int Height;
/ C& r) u: f0 X int Weight;
};

. V0 c6 Z6 ?; h+ A& T* _, Zvoid main(void)
: e1 N6 F7 s. K& X{
: f3 M% t0 g  q9 I   Human Lee;
( L. K# t0 ?7 N  O4 C* f: M   Lee.SetHeight(172);
   cout<<"Lee的身高是：";
   Lee.GetHeight();
   cout<<endl;
- f3 \3 [/ ]1 L) k   Lee.SetWeight(120);
* S( x$ Z4 b& I" i  E) L   cout<<"Lee的体重是：";
   Lee.GetWeight();
   cout<<endl;
}
/ l! \' ^! i* V/ J# h第二种写法：
( \7 Z- W4 Z* a#include <iostream>
using namespace std;
/ a, S) U! W& S3 u( t" qclass Human
/ }' {* z1 Y* x{
public:
void GetHeight();
    void GetWeight();
void SetHeight(int x);
- M  r1 v' U* e+ d void SetWeight(int y);
private:
int Height;
( A; s$ [4 S- g% g) i int Weight;
};
  x+ ^5 I2 R2 j4 D& r8 K& avoid Human::SetHeight(int x)
{
Height=x;
}
; n) q/ o; J+ u3 f, x! Pvoid Human::GetHeight()
# p; S9 t5 m5 X' Z( H# ?; P7 e6 D{
cout<<Height;
}
. X; B$ o' A2 n+ W1 o0 Kvoid Human::SetWeight(int y)
{
- ]" `2 S7 w  `( ?9 P$ e Weight=y;
8 X. J6 B9 F9 X}
void Human::GetWeight()
{
cout<<Weight;
}
void main(void)
0 O4 G; W9 Y+ c+ z0 T6 j0 `{
   Human Lee;
' Y/ m5 h' F1 |  ]" e: V   Lee.SetHeight(172);
   cout<<"Lee的身高是：";
. C! E4 b' o2 c6 P   Lee.GetHeight();
, D" r  S, B# d# j7 t   cout<<endl;
3 ?7 \# M: I$ y: D   Lee.SetWeight(120);
' ^. B% J# A! a: A7 w   cout<<"Lee的体重是：";
6 Q. V6 b. p% K9 a! Y& \! F8 _0 a7 b   Lee.GetWeight();
% q% ]' N1 U+ N3 f1 I0 r   cout<<endl;
}
推荐第二种写法


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