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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:
) y; C7 J9 n5 M( ^6 q* p6 p8 a#include <iostream>9 N, d  o/ o% C3 P! g) g
using namespace std;
) f7 d0 F# O1 U3 q: a* t* xclass Human
/ r: _7 D' W( Z4 `$ {# ]( c{
6 y# r) p" M# Q# Qpublic:
6 X% `! C$ L* ~5 c! `$ `/ O void GetHeight(){cout<<Height;}
6 O1 c) D0 z! g void GetWeight(){cout<<Weight;}7 R. s4 i3 y4 ^! ?3 X4 I; Z
void SetHeight(int x){Height=x;}: F$ O- i' w. l; ~
void SetWeight(int y){Weight=y;}! M  T0 j' `- C0 Y
private:8 m/ `, B0 _1 I# }2 K2 m4 s3 c
int Height;$ D6 ^. i7 ?5 ~9 s+ q% m) D
int Weight;9 @" x+ o1 x+ Y, Y8 ^. ?8 t
};
6 ?* z# l/ |9 r0 Z( P1 b5 {) U" r3 l: ~. v/ R& ^+ i6 J8 L; b7 H
void main(void)5 ]3 V: z7 f4 R7 l5 F. a# H' C
{  |9 J5 @/ X4 Q; w- M- F7 v. w
   Human Lee;
; u; C; i- s6 A0 n" M2 `   Lee.SetHeight(172);6 ~* J, p" z+ ~
   cout<<"Lee的身高是:";  F+ Z$ U8 G) B+ w1 l9 h( ?
   Lee.GetHeight();+ E- S- @/ V! I- J1 q
   cout<<endl;
3 v: h$ ^% @# n- B5 \$ S6 W% N$ U   Lee.SetWeight(120);# d; k( k  H) p8 i# h" w2 T3 D9 K
   cout<<"Lee的体重是:";, Y6 [2 x" u% I$ T6 P5 T: ~
   Lee.GetWeight();
8 X4 b! _0 _* t3 O/ F5 J   cout<<endl;6 ]+ X+ t- a0 |; o& B
}8 V6 a+ p: I0 {2 \& f
第二种写法:
4 D3 S! S% l+ u( f" E$ J#include <iostream>: k; z- L% u6 E; _
using namespace std;
7 c0 `* {" _5 e" V. E0 K$ pclass Human
1 I/ l: b3 l( z; k, w* V{
+ E/ d( Y1 v4 {' x+ i& |8 h0 @public:
- Z$ G5 Z/ V7 ~8 K. O void GetHeight();
8 R+ x! U7 c/ @    void GetWeight();
9 e. l6 w% d4 d/ q5 g+ T! j void SetHeight(int x);7 Z' s& }  ]! v9 n8 K: [  _
void SetWeight(int y);- {) x" D8 J, ]: L/ a6 p5 ~: Q$ X
private:
/ Z+ Q1 H- R' z9 b$ a( [7 C/ r" q int Height;
' L% Y0 A8 g" x6 n  H+ b: `1 n int Weight;0 N6 [# W& T1 c1 l6 c; |8 m
};
- ~5 N5 h0 _6 ?) u: n9 y0 l! X( {void Human::SetHeight(int x)' B+ }" X2 j7 ]& \( z% m
{
' P' @" \. l) \4 S' H2 c$ q* D& z Height=x;
5 o% Q; t/ M9 m/ Q! G, ~}1 h0 s3 b6 M* v7 x4 v: ^! V
void Human::GetHeight(); r6 X. Y6 m. Z7 P0 x
{
4 x! [  Y# r( T, y9 M cout<<Height;
! ?5 z+ g# B( @$ B9 n  A1 [8 a}
- B6 R% `/ L& u) Y4 q0 X/ Ivoid Human::SetWeight(int y)
0 K8 G+ ]& e% F8 c{
5 k- v& ^# r0 f& u Weight=y;
$ j/ b3 s# @  t: f8 |}4 Y4 {6 D5 O* u4 S7 Z
void Human::GetWeight()
- S4 f" y& r- V7 S4 ~$ g& K{2 \. K) e# z3 [$ G  X; i* t! ~
cout<<Weight;8 ?: ^) s; n, d) d' G% |
}2 ^0 f6 j0 C2 O9 d' ^! i
void main(void)
& r) K2 W3 j# `* G! s{8 _% \* m3 `4 d7 s
   Human Lee;" R" l! L; I8 l$ d& i  r
   Lee.SetHeight(172);. ?$ {# X8 B# b
   cout<<"Lee的身高是:";
3 W8 K0 m( A6 ?. [" _% L0 g- ?* O1 s   Lee.GetHeight();' D" e6 x' H9 i; Q7 d; r' M6 {
   cout<<endl;
# M8 t* N+ t* Z: i3 Z   Lee.SetWeight(120);7 j+ C- m6 z0 n8 }8 S+ J. T
   cout<<"Lee的体重是:";4 I' ?  Z/ _3 g9 j* V% ~
   Lee.GetWeight();: ~% S. v$ f# F' O
   cout<<endl;
( s) C* T) I% [* d% r3 m}
8 ?3 A3 [1 R& F" d推荐第二种写法
8 Q( n4 y5 }! }7 S! n& _& Y/ W; R/ u1 o0 R& T% p

) C& D$ I. h$ h2 p/ \( s' G
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