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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:
" ~* s6 y4 C2 C#include <iostream>
& J6 w, e/ c# d' s+ Q: t0 }using namespace std;
6 G- {0 ~1 w  }) M* B1 lclass Human
" I. P$ h6 J; T! \5 N{7 T$ E- @- u# i1 n1 M0 `5 u1 H0 p
public:
: s2 |( b1 k4 N+ r4 F( U void GetHeight(){cout<<Height;}
; q; [2 v( G& x, x. `# H5 D void GetWeight(){cout<<Weight;}4 ?) {8 L7 o6 j+ [( Q; L4 s
void SetHeight(int x){Height=x;}
1 ]# g) c: t/ {. s6 H void SetWeight(int y){Weight=y;}
4 C" h0 U  }! @+ T' ]private:8 f! f! h( l: ^" P8 z9 s' ]! N) o
int Height;
8 Q) h1 Z9 e* c& I& q$ n int Weight;
* I+ i$ ]  r8 g& u( j};
4 c4 T/ D0 M1 A! ^3 t6 k. u( S# i( T' z6 v6 i' `
void main(void)
+ y" p  X  [, N4 @% H0 f" t{
4 t% u; }  R- e( P+ [) r   Human Lee;: f  q# ]! h9 |# Z6 Z
   Lee.SetHeight(172);' s; L0 S/ H) t2 q5 K- l  j
   cout<<"Lee的身高是:";
. H2 {; _4 @; e   Lee.GetHeight();
9 |" E$ Z# N; g; j) w9 p* _   cout<<endl;
  D3 q7 C; L: _6 L/ M   Lee.SetWeight(120);
, K% p1 B0 C9 U1 A6 i) g. U; E   cout<<"Lee的体重是:";
& J% _$ {! n# u; j( g* I/ y. ?0 e   Lee.GetWeight();1 ~& G; w& R, q1 v4 G9 f8 W
   cout<<endl;
* |: F& C* @2 P/ b" B}
; ^$ x# N" X+ E) |3 F2 l9 u/ p第二种写法:
+ |8 X# _1 Y; z7 [, L, C- }0 |- Y#include <iostream>0 P, {5 h6 c. S( m
using namespace std;
& J! W8 X8 C& o/ I( r) i- t( a# s+ b# Yclass Human& g- D, m. X$ J0 M8 q4 _8 x! ^
{9 ]# M7 P1 r8 ?! S" M  ]% t
public:
6 M+ x( y( g* U3 G3 ^ void GetHeight();
; y" N5 }% y+ v* N5 m4 d* P2 `    void GetWeight();0 O5 e6 m0 d* K1 j' [" r
void SetHeight(int x);
1 x3 F$ \7 }8 x void SetWeight(int y);2 y4 d& D$ r( ?
private:- ?0 M! R& i5 U: H( c+ e# i: {
int Height;4 J' B1 _! q+ |* t, [9 X) y
int Weight;1 @. @# f5 S! J$ E0 @
};
. l. z+ M2 {, x0 v; G' I7 f& fvoid Human::SetHeight(int x)) O# V+ {9 [* c6 T2 z$ \, b; ^  _
{
! l1 Z9 S% E1 K5 I) a7 o2 u9 H Height=x;. U  U8 b9 q9 v) Y+ D/ j7 O( P
}
7 N  a( O# N" q( F- _3 ivoid Human::GetHeight()
7 w3 m; m! M2 q# {{
- `4 |7 i" i, i1 `% b cout<<Height;
3 ~9 y9 X* I7 ]% b6 S+ P* n}0 k" E! q0 N, }' ^, `* K
void Human::SetWeight(int y)
! E' S/ E/ ^- M0 r( Z, D; B{
" y/ d5 n% w" ] Weight=y;3 o% ?1 t9 j% d8 Y0 A% u$ r4 C
}9 n+ p0 H# l; L3 C* ]6 j9 `
void Human::GetWeight()
, G4 r! A$ l& N  |1 D{0 Y1 ]' [$ I9 |& ~
cout<<Weight;
% y9 C: I' ~. i$ f: }: L1 n: b& p}, J( g, v/ o! W6 X+ i4 ^$ [
void main(void)
. f7 A; s0 f* g; Q{0 w* S6 B2 `+ e! x& k. r5 a/ H
   Human Lee;
+ Z6 N* e3 ]( d5 v4 G6 O   Lee.SetHeight(172);
- u4 u4 s- D/ @* X6 f# L; l   cout<<"Lee的身高是:";
" Y* t9 s1 x0 W( g( e3 M   Lee.GetHeight();  J0 R3 M9 n/ K0 W1 H) [4 h! g7 {
   cout<<endl;
/ b9 F, e# T% X0 b( g0 i   Lee.SetWeight(120);& g- ]  c2 K% G1 I' ?. n+ h
   cout<<"Lee的体重是:";
7 J# t( k4 j6 i. v8 y* D   Lee.GetWeight();! [) s) N3 o% w
   cout<<endl;
1 Q! s, Z: h$ {  B4 g; O}& F- D/ D) H0 i: A* _% l0 b5 G
推荐第二种写法5 Z& @& i. Q# v; H! r

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( P; ~/ H! m! C
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