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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:6 F0 I! Z8 g9 t' |! M: ?* C8 v" {
#include <iostream>, ~; g0 c" Y5 D/ R: m
using namespace std;5 A) G* {- v. y# y
class Human) n1 f9 q3 _! x
{7 a( t& K8 t& h
public:+ a0 R' i% F( b9 B# R! h4 B
void GetHeight(){cout<<Height;}: a. c. [; n- F
void GetWeight(){cout<<Weight;}
8 B9 T6 e. z( [* r! l6 K  b. N+ z void SetHeight(int x){Height=x;}; N% G+ A0 }& a: `/ D
void SetWeight(int y){Weight=y;}/ o5 H: a- i. c3 @# T
private:% \2 L9 f0 L8 t* P
int Height;7 N0 K1 P, r6 l0 W
int Weight;
; u  N+ ~0 X- Q' u  `" i/ g9 r4 V0 ^};
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# v" A/ e6 c' \. ivoid main(void)7 h+ m' y. n( Z" s  [; G: n
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   Human Lee;
* f% D+ K7 N( v: [   Lee.SetHeight(172);) I) s( L$ C! t; q  `8 _) G4 O% e
   cout<<"Lee的身高是:";1 O# U( `8 K. u
   Lee.GetHeight();
( H5 x& R5 _7 Q. h: H   cout<<endl;
. A& F9 N" C! ?$ G" g   Lee.SetWeight(120);
- o! j4 `/ u' f' G5 e0 g   cout<<"Lee的体重是:";5 h( `3 M! W' h, y
   Lee.GetWeight();
9 g1 [  j! G+ q* S# Z   cout<<endl;
' Z5 i( h5 O% `# E- `) V  b}
6 e& u8 l+ n0 G* O) x  ^( D# Q第二种写法:, J& D1 o0 O' Y2 ~$ i* L
#include <iostream>, d4 G# h* r; N7 b# K+ F& \: J# z
using namespace std;
- U2 Q1 l, s# M% Y- lclass Human
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public:
9 }3 t- w' [, q6 f void GetHeight();
, n5 `+ W% @2 \0 Z" T8 L    void GetWeight();
7 M) f+ t6 D$ p void SetHeight(int x);
/ N4 t% ~( e4 i, \$ I2 Z void SetWeight(int y);
7 L- I& G  Y$ O7 @private:
# q/ x1 _" r& p8 w int Height;
9 h6 j* A1 J( d2 A int Weight;
6 w8 b6 s' @/ t* k% C: G# B};
: R. U7 K, U4 M; svoid Human::SetHeight(int x)
& f. C& V4 @: v! r{' y2 g3 v; S: `
Height=x;
3 f' h( w- P3 x: U9 v6 N* \}
% m" s! `' Z+ C9 r4 Bvoid Human::GetHeight()
, q  N. B  g% z9 D, |5 S/ c6 V! x{  d8 |' A2 V/ H2 _
cout<<Height;
' }/ |+ ?* h% z3 H1 s/ J}
- E9 I* }8 i6 e* K2 V4 l1 l. J- @void Human::SetWeight(int y)
9 f, A. I2 I4 L% a: v( j1 f7 e{6 B2 g7 L2 A1 L1 s3 ]$ e) z. Y
Weight=y;4 G6 e. m  d2 {& y1 e9 Z5 d
}
4 _( F( Y( q, k+ v3 m% Qvoid Human::GetWeight()' u, o( o5 d* }7 k1 ~3 V
{
8 u8 m- j* g) G4 V- o( { cout<<Weight;, M* R% @9 h; |. r
}. u3 W% o7 p+ _4 E
void main(void)* E3 F5 J7 D# c: a7 A# ]
{! E6 K9 T4 p& {# ?, P* J6 A
   Human Lee;
0 T; V* z' ^  G4 N9 t, F   Lee.SetHeight(172);& C0 R$ J+ m& X' a$ Z5 A* q4 r
   cout<<"Lee的身高是:";8 k  f% {% @/ o8 I: T9 v
   Lee.GetHeight();. M8 q% ^& z1 n: }5 ]
   cout<<endl;
6 |1 Z6 ~; O; ?0 H$ L   Lee.SetWeight(120);
# I2 Z, n9 \5 S/ ^' P$ H  d   cout<<"Lee的体重是:";
6 k0 L$ t4 B. g6 t: p' |0 z   Lee.GetWeight();- e6 D* M3 `: o/ U3 N
   cout<<endl;
6 d  M4 C: t3 H  k9 X4 Y}, t& o# \; v+ i. G6 |' \' a5 Y
推荐第二种写法
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