25.类，对象，成员实例

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第一种写法：
" ]9 n: |1 E1 n" z8 B) Y#include <iostream>
using namespace std;
; i: b6 P% G* J8 y1 S4 Mclass Human
{
  s7 G6 u" N- tpublic:
void GetHeight(){cout<<Height;}
0 X: c- e/ B+ p% \ void GetWeight(){cout<<Weight;}
void SetHeight(int x){Height=x;}
0 z; u" c) i2 A5 ^& F void SetWeight(int y){Weight=y;}
private:
9 U. A+ m, u8 H" @ int Height;
int Weight;
};

1 u' s; P. S5 ~- I: ?0 kvoid main(void)
{
  d; [! n  N/ g   Human Lee;
' s* C7 a9 y* Q1 \- j, [9 D   Lee.SetHeight(172);
& Y* Z  N0 N% G' ?' G( @$ {& c/ M   cout<<"Lee的身高是：";
: o0 q7 k- L& W' I   Lee.GetHeight();
   cout<<endl;
, C9 o8 T+ O1 w: w; S3 t* p   Lee.SetWeight(120);
   cout<<"Lee的体重是：";
0 Q/ C- p& [. |   Lee.GetWeight();
7 C) U2 b- M  Z   cout<<endl;
, s+ Q" e* U* J}
第二种写法：
$ V1 I. w" S# `7 H#include <iostream>
2 j6 ]3 U/ Y+ j8 \using namespace std;
/ V9 A& S- L  G* Gclass Human
{
8 h1 b% I5 }" I- C/ k2 o4 Qpublic:
void GetHeight();
. b' C) r, |1 R5 j. J, W    void GetWeight();
' l4 U* Y2 x$ Z9 H+ k% P! ^ void SetHeight(int x);
+ [  [" G- @( n void SetWeight(int y);
private:
% E$ d5 Z* M) E( A int Height;
int Weight;
, @6 D4 \' r1 D% Z% v1 B};
2 B; S1 Z: `1 d. \void Human::SetHeight(int x)
{
Height=x;
7 U0 w# `& G; L3 u}
void Human::GetHeight()
- |5 {+ Q2 ~0 r* X- B* l$ t{
cout<<Height;
% a2 _- l3 K! l6 `% H2 c) H}
7 J6 Z: [. t. Z  @! X! Wvoid Human::SetWeight(int y)
{
Weight=y;
}
void Human::GetWeight()
5 C% E5 U/ @& a% d# l2 ~{
cout<<Weight;
& M) D5 F) R; o! A- Y3 M}
void main(void)
& z. c6 ~/ H- ^: i( U{
   Human Lee;
   Lee.SetHeight(172);
   cout<<"Lee的身高是：";
! T9 n) M  j( d! g: }  Q   Lee.GetHeight();
   cout<<endl;
   Lee.SetWeight(120);
4 m4 N+ a% t( B( v6 I; \   cout<<"Lee的体重是：";
! r. N% H# w3 b# @' C$ V" t8 Y. V   Lee.GetWeight();
   cout<<endl;
}
推荐第二种写法


. |% x# {* ^/ \5 v6 D- {: X  B