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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:. o3 N, I8 S) {' y% ?5 w% T
#include <iostream>0 D, u, `4 j. p" Z$ L2 Y
using namespace std;
% q. G0 U4 W( a2 C2 I; `class Human
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public:
! A: }0 t; M7 E- p( q void GetHeight(){cout<<Height;}* h( S* |4 B) K' S* e  G. o
void GetWeight(){cout<<Weight;}
: y2 w7 B' v4 v void SetHeight(int x){Height=x;}
) r; H' }( k, O6 l/ o void SetWeight(int y){Weight=y;}
3 Y  T$ h+ e# R1 J3 j4 {3 T7 Iprivate:( B  t" m& b& ~! b+ H0 n$ b
int Height;
# o. C" ]4 W' Q+ h( G int Weight;
, R6 X/ A9 F7 P};
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void main(void)9 _% n; H. ^3 q* _
{6 N7 |" i9 w. X. M! R! N" P& Z$ Z: I
   Human Lee;& Y- y. D# Y" k6 I
   Lee.SetHeight(172);
0 K4 E' [4 y' S+ k0 t. i   cout<<"Lee的身高是:";1 F4 i9 M4 g' R2 o$ g/ d' b3 Y2 l
   Lee.GetHeight();# h+ ^0 v. y$ d  w2 J
   cout<<endl;
, W  r# `! x: c5 r8 Z+ L' q   Lee.SetWeight(120);! x8 c9 i6 D! b- c0 B2 f
   cout<<"Lee的体重是:";( L0 m/ I3 }1 |( m7 f/ f
   Lee.GetWeight();3 `8 t( ?$ K% V; v. P
   cout<<endl;
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1 f+ Z1 v" w& z4 `3 o第二种写法:
4 D% D& e" v3 T1 c#include <iostream>6 b7 G6 e1 w! P$ \3 ~8 v$ J" e
using namespace std;& B; v+ F5 t* y7 M
class Human4 `/ Q9 k9 n, r5 U0 C
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public:! U4 v* D5 T# {; J  _: p4 o
void GetHeight();& M/ t2 m4 _$ F- {$ h& A
    void GetWeight();
: q6 q+ |" R- s. W void SetHeight(int x);
8 p  V7 N' a1 w void SetWeight(int y);! j5 s+ T: {4 \% W& [) E, V
private:; C) ]+ j. D, X, b
int Height;
8 X, j) x; g2 `! g' d int Weight;. H) _8 G/ @+ Q+ O( [( n
};
# ]' j# F* Q$ \, V. \void Human::SetHeight(int x)
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Height=x;
0 z# @7 Q) J) X}
/ f& }9 l1 u0 P! k) svoid Human::GetHeight()- Y/ _: \5 @+ ^; l
{
& R% {: L! z! o( i$ s# R! l! L cout<<Height;
$ k5 D1 l, k0 h- H* R0 d}
+ `- Z! C* k  z" k: z$ Bvoid Human::SetWeight(int y)
, A2 L4 o: K5 S+ b{
5 X7 O! \7 t$ b! D% h7 ?: i  B( F4 t Weight=y;
$ }* {' }, \( \9 n}+ }9 I. ]. O* O. [. u& Y" }7 L) H
void Human::GetWeight()
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4 x* M# E$ p! f( ^- W9 \ cout<<Weight;7 a+ M' |8 x$ F2 s& L
}8 b, {7 a1 K* m9 @# G4 u7 t
void main(void)
6 Q3 K1 f+ C, G( c% W! s3 x! c  P{
# A: |; ]5 ~) V   Human Lee;
8 {) r4 C; f- M6 Y4 {   Lee.SetHeight(172);
8 ?. d8 c$ J+ G" f4 b) {   cout<<"Lee的身高是:";% T) ]' V( Z, P. j% _+ M! c' k2 W
   Lee.GetHeight();7 j* \" F* [" P6 Z7 V
   cout<<endl;
3 ~) o2 J6 I- b$ A   Lee.SetWeight(120);7 x3 |4 R8 K0 {- W
   cout<<"Lee的体重是:";+ l- c- b( Y# Y. \+ G
   Lee.GetWeight();$ i% c8 ~. }1 ~9 k
   cout<<endl;# H' i+ ^3 Z/ e# F8 O5 C9 Y& o
}
. B; ?: u" o: @! w6 W推荐第二种写法
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