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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:
1 F; ^! l2 r+ s! a, U- U#include <iostream>
; I  B- U$ O; Ousing namespace std;- v) Y8 x' S0 [" e: f0 l$ q: P
class Human
# |; b5 I0 [- t% ]( i{7 R+ I$ L+ [. ]) ^6 [. `* |, R
public:
3 J* A5 h# r1 u void GetHeight(){cout<<Height;}3 v3 ~4 C2 s0 f: o5 T
void GetWeight(){cout<<Weight;}" j2 X3 k9 y; X2 v0 ]2 R# f. o
void SetHeight(int x){Height=x;}
2 s! |2 I- M6 c2 W+ N$ F9 T void SetWeight(int y){Weight=y;}1 ~* g- z9 e. ]. L9 w
private:
) y2 E8 b0 H- Q, E9 m% j int Height;! Z- t8 }2 ~1 ]5 K6 S( F
int Weight;
# Q  {8 Z) w# q4 J9 L) j};% O  A% y5 b0 c6 i4 f5 X; k8 C4 {

6 L+ u. e  d$ E( C3 ?: D) Zvoid main(void)
. i8 \3 _: W7 S4 j/ U( E, R+ O- @{
4 N2 d! k+ j% z$ T   Human Lee;
' t0 X( m) W& H7 B8 k, t   Lee.SetHeight(172);1 X% h: Y( r( p5 ^9 w3 Y: _
   cout<<"Lee的身高是:";; V) S) q' \  L( B
   Lee.GetHeight();& [% A4 W5 o+ m& n8 q
   cout<<endl;3 t8 }: R5 E. P+ P: S
   Lee.SetWeight(120);  x  K% m  A9 d* K0 G
   cout<<"Lee的体重是:";, z9 a7 I0 K% d' r) C
   Lee.GetWeight();
+ i* e3 S( I7 F- \8 f   cout<<endl;
7 L, m" y$ g* O7 a. [2 ^5 H}
+ t, N# Z( `# [第二种写法:1 c# W9 {4 }% W3 a) h
#include <iostream>
1 S) A, e& a2 r& x5 Q7 Nusing namespace std;
( H1 J7 h8 Y" d; w8 I, z8 J$ f+ |class Human
9 T  S& V+ {) v* U! o, ]8 v{
/ d3 R, v( ]9 C6 D- x( _5 m% z8 X8 a$ Mpublic:
% o' x' \: V7 {# I3 B void GetHeight();
! N' r$ T+ L! f1 ?8 i6 r" C    void GetWeight();
. H) M4 ?1 M, e8 | void SetHeight(int x);
6 F7 `) a" l* @# r9 W7 Q2 A void SetWeight(int y);
* T9 O# K4 D$ Y8 Pprivate:# s" U* P+ d0 a; H+ P0 l! z0 F& \5 {9 I
int Height;
8 r% M8 T5 J8 J6 O: x int Weight;. i7 R5 G. M& O. W! ]3 k4 ]
};
5 a+ Z! M: g' Gvoid Human::SetHeight(int x)
# H5 a% z: A0 A* Q% d{
/ r4 z( k0 h: }8 M. A" Y5 e& D' H Height=x;
4 u: q- b, ]% E8 p}$ q5 \4 o9 n# Y! ^3 m
void Human::GetHeight()% n( e0 [- O/ Z
{+ f. D2 w" ~2 b8 R5 O: E, \8 b
cout<<Height;
0 O9 Y/ R8 p7 r5 S4 U}
4 k% d& e* ^% _9 Qvoid Human::SetWeight(int y)
1 {. ^7 X/ I& m  o. U& l) e& N1 B# }{; |" ~. Z6 l; j5 k7 \
Weight=y;0 y7 D/ l+ j9 O- t: Z; P- ~
}
0 q0 d+ D2 t; v4 G1 f& evoid Human::GetWeight()
$ }( G8 u8 P9 A; v( Y3 g{4 c& }+ Z) M; y. d$ ]( K, R
cout<<Weight;. P7 [; l3 p% a4 \0 c
}
* K* ?4 Y5 l- T3 s3 r" `+ Bvoid main(void)
  v% _( f) u$ b7 q0 T{2 x" R: P% y- T# T* }
   Human Lee;
9 B/ ]% J6 O( g& j9 L0 @2 G$ i   Lee.SetHeight(172);$ [* [# Z1 i4 C+ `& C
   cout<<"Lee的身高是:";
- G" {6 N$ e& ]- z   Lee.GetHeight();
  z. X7 L7 ^7 i1 R4 u, t/ B   cout<<endl;
* p* y5 c, s! k: L! C   Lee.SetWeight(120);
. B8 a' m4 V- I; F% C   cout<<"Lee的体重是:";! V1 ]1 R) Q, u7 K. H9 f1 C% S- y7 O
   Lee.GetWeight();5 G, x+ e/ u0 F
   cout<<endl;$ q+ f+ N3 Y  O  r. N( r
}
6 F6 y/ [/ o% w8 [$ {; O1 p推荐第二种写法
& G7 p. @; `' z- H2 e' c/ [5 t1 V3 Y$ ?3 x# o
  d( z4 z9 y* N& [
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