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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:# q. C4 p- @3 v# _, Y( N3 C
#include <iostream>
0 I: a: y+ B- {3 @. h* D/ e: ~using namespace std;
/ ]& ?1 U, A) ^( s9 E9 t0 V! hclass Human
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public:
7 R0 ?7 U; v! b6 k' t( l void GetHeight(){cout<<Height;}
! [% o9 t$ U! B. h9 N. ] void GetWeight(){cout<<Weight;}  W0 \; v6 i4 w! Q" ]( \
void SetHeight(int x){Height=x;}
8 l' f6 [8 S5 z0 ]7 r void SetWeight(int y){Weight=y;}6 f; P/ _+ T: Z3 F$ Z  E3 v. u! `8 g
private:' s8 h0 Q! @3 L
int Height;, A4 h  ]( G+ p& S  }$ G, u6 A
int Weight;$ x) ?8 ]$ r+ l" q- H4 i7 L
};
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9 ]8 A% I# i% w, vvoid main(void)6 b7 J. d, g' i  X9 A  x
{' m4 Z8 \$ n# ?/ i) O
   Human Lee;
! I9 r( O" ~1 y5 E7 u6 P5 y' t   Lee.SetHeight(172);, ?( m0 ^" R% y2 [" V" E& ]! F( [
   cout<<"Lee的身高是:";$ k" R0 x; q1 l
   Lee.GetHeight();
# L+ k0 i+ l* c9 F! v' T   cout<<endl;
9 f( \; L  O1 r( W! ^1 K7 g( u* ^  A   Lee.SetWeight(120);1 g% o4 c! ?0 H( L" P
   cout<<"Lee的体重是:";3 }$ a7 H* q1 J" Z& A7 t% d' x
   Lee.GetWeight();
# `- v. c% ^  G: `" o# f   cout<<endl;6 s. x. P  h8 z+ T6 ~3 x- j6 C
}
" s6 T- u% N5 b" }, t第二种写法:
% W; Q5 o  c  J6 D- I( }1 D#include <iostream>
/ E, Z  W8 ?4 u( y! q  c+ ousing namespace std;
- L0 [4 N6 P! [: V; ~8 |class Human( M( u5 E3 N; S; @: U* a% I
{3 K) ^# L7 G! c9 I
public:
, n& s: n. ?# {: S8 ~# @5 b+ } void GetHeight();
8 X; \3 p/ i2 g; j5 ?: _+ E5 Z    void GetWeight();
5 |3 k1 w. s. [: L void SetHeight(int x);2 D) I) r' Y, x. `+ w; ^/ `
void SetWeight(int y);
, v* W+ g: j1 uprivate:" Y3 A/ o  o1 ?2 C
int Height;
" e% q' i* Z7 |) Y* `2 C int Weight;8 s8 t9 g0 M+ W% r% t
};/ f  |( I( e1 a" @6 C
void Human::SetHeight(int x)
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Height=x;: }; n/ I/ ]: D2 z# }: }" q
}% d% Z. U9 d. |2 c1 F
void Human::GetHeight()
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cout<<Height;
/ x" I+ P8 d$ m; {7 n( w$ {}( P1 B9 ~+ s5 q: R4 o0 h
void Human::SetWeight(int y)9 ^+ i6 O0 P6 t! m3 U! m- ^
{
! J& W! A/ v3 i( d0 n4 ^+ v Weight=y;
0 w4 r; m: p, C+ `}( j7 }9 {8 Y2 t& g& O
void Human::GetWeight()* d2 n9 z# M* O# f% h
{
2 b# O0 S5 s- [: F7 n7 v cout<<Weight;
( H7 P( M9 J2 |8 p4 k: c9 @& C3 h}
; H( ]+ F4 \' w! ?9 Y: O. Z" Qvoid main(void)
0 m0 U3 r( g/ O: S  I{
! r/ s: e5 V- I( R   Human Lee;! u( Z3 _- d+ Q
   Lee.SetHeight(172);7 z- x4 _- p# G6 ^# m+ L$ \! x4 q
   cout<<"Lee的身高是:";
; }* v& o+ }( r5 \1 V; c   Lee.GetHeight();
) ~; f. ~/ v, K3 R   cout<<endl;
1 D9 ]: P' R, N% J' |! K0 Q   Lee.SetWeight(120);
; q* m* E$ a6 N$ h$ V' K   cout<<"Lee的体重是:";# h6 X6 j6 G- i9 R7 Z; u3 _
   Lee.GetWeight();2 b, {; Q. N  @  \
   cout<<endl;
0 D% T; r7 S, Y) d- u9 p. F}0 d/ Z& s; S1 c
推荐第二种写法8 L/ f' A. ^- h; O, w7 T3 ?

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