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25.类,对象,成员实例

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发表于 2013-3-9 00:28:28 | 显示全部楼层 |阅读模式

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第一种写法:
; a" `/ u3 A0 `0 V& T#include <iostream>: R' ?; h  O4 B8 C4 A
using namespace std;
9 R% p4 K2 U0 A( o& jclass Human- x# F% U8 |9 n# X
{# _" M; N# o9 \7 D3 h# l
public:
8 l; Y  {9 J/ I7 n void GetHeight(){cout<<Height;}1 |9 t* O8 U) V" A/ A1 ~
void GetWeight(){cout<<Weight;}
& M4 E2 Y) ?8 V: v void SetHeight(int x){Height=x;}  ~$ P; ]7 w; e' Z! i+ L
void SetWeight(int y){Weight=y;}" e3 E9 ?% m9 v% N  r% C- O) k
private:
$ r! F$ R7 V. L int Height;& m. h- e6 Y; S1 P
int Weight;+ C/ r0 m% y. d9 |8 S' A( W
};& Y' D: \' ^. D/ L; }/ [
. I$ O0 `3 t, W' c/ o
void main(void)8 h& u- R  K0 y$ S- p$ O
{& ^/ s* f1 {; G/ f6 N" Z  _
   Human Lee;, C& q) g2 @- e- j
   Lee.SetHeight(172);: H$ Z, E# ~9 ]: |7 o
   cout<<"Lee的身高是:";/ V! p" r4 L6 ~! `- I8 A
   Lee.GetHeight();/ ], A* O# j) P% [
   cout<<endl;! u1 s* u2 [! `0 L1 k: v% k
   Lee.SetWeight(120);# k  i1 V( k$ a$ A8 h: V8 N
   cout<<"Lee的体重是:";6 ~9 C; t* p; n" s" R3 k: R% O
   Lee.GetWeight();( W3 @; v: Q) r2 A
   cout<<endl;
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9 P8 H$ g( C7 ]9 Z* ~第二种写法:
7 X, t6 v7 F3 b5 E8 N#include <iostream>
0 d$ H6 `; S: d* A! F+ {) Uusing namespace std;: q4 N8 X9 x2 Z& A2 u
class Human
3 T, h4 w; z" _2 ~{7 @) p2 l5 D+ \7 L- K
public:: L' m: s# Z2 ^$ `) v# `" i9 j$ G
void GetHeight();3 B( U( b6 q! ]/ Q
    void GetWeight();
8 J# K" Y& z; ]5 A( `! b. T% b8 U& y void SetHeight(int x);
. a6 a  Y; N0 ^- K6 m+ T1 n  m void SetWeight(int y);* x6 J" r, L  p
private:
' r: r! d: g: ]8 [& i int Height;2 D: w! ?$ s1 I6 C$ ~
int Weight;
0 t& N) H2 X% [5 l) D9 r- E0 v};
+ F3 I, g) U7 m: P* {0 o0 Mvoid Human::SetHeight(int x)
4 b# S9 V' `$ v9 {8 m( r{
  ?1 k5 M; q2 i- s: E Height=x;
. j9 x& g  R$ z3 M; K8 U% o}
% ^+ x0 b4 c, V; ovoid Human::GetHeight()/ Z& S9 ~" E2 [
{/ N4 v$ N; u' T* L2 J
cout<<Height;
# f' l5 J$ Z  H, ~: e}4 Q7 c* ~! T. R
void Human::SetWeight(int y)
6 J7 \. z# s$ M* d5 T  P3 k4 A{
$ I8 H' m2 H% w Weight=y;7 \$ m3 M( o+ `* y6 B
}
4 N$ y% h- I* }; V: `1 g2 L2 ivoid Human::GetWeight(), [) {: C: V+ m6 G/ H
{) G$ @; Z, S/ J. s7 Z0 l  @4 t# [( ~
cout<<Weight;
& x# `- t7 M3 v}
' [8 s$ ^0 s! a: a5 t( Nvoid main(void)3 R: A% v: N: Y+ i2 y! s
{
! e9 D* L9 c. N& q" {- t   Human Lee;4 h4 I( A9 Y7 h9 Z8 n. O* V4 ?
   Lee.SetHeight(172);
2 {' P! Z3 Q. z/ q   cout<<"Lee的身高是:";; B, Y- P. |! l7 W$ }
   Lee.GetHeight();  X4 O8 o' m' X) |7 P
   cout<<endl;& G& v3 k# _, G6 A/ }. w
   Lee.SetWeight(120);
2 q" \+ Q7 H6 S   cout<<"Lee的体重是:";3 }! d) J6 o4 w( M$ r: j) A
   Lee.GetWeight();- e8 g2 |* Y) K3 a, t) V4 S3 Y
   cout<<endl;
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8 m8 j0 I) M# ^: d- \推荐第二种写法* _0 w: ~$ m+ D! K) Z) p$ ?

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