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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:4 N/ W3 k& ?+ @: n- P: K8 y
#include <iostream>' E7 i1 t- b1 _) C2 }# `9 z
using namespace std;
# j( b3 F7 J. Z; X) q. z3 \+ Fclass Human0 |7 Q$ u% o3 k. H; i
{  B4 c9 q- k& H  U  }, T
public:8 o; V6 P- D1 b; }9 d* G
void GetHeight(){cout<<Height;}
$ K/ q" v8 _! V; i- E% y' ] void GetWeight(){cout<<Weight;}
. R7 A2 t* `( I' b" l% p, e' ^2 x void SetHeight(int x){Height=x;}8 M( g, k9 s8 s! m7 U! b
void SetWeight(int y){Weight=y;}
% |+ R% P# [( b* P) k. oprivate:
; y. f* n* N, t& C int Height;2 S, D0 l5 {. i( m' \8 }7 _( u
int Weight;5 k# l; X" g- q' q7 w
};7 j) Z0 p' J) z0 V& v7 U1 |9 }5 c

# o+ K6 X* n! Nvoid main(void)
( {0 S! R% d$ J- u{
  T; a* g# j* r, \   Human Lee;4 B% c9 T& A& s
   Lee.SetHeight(172);, S) O2 I$ c" z4 U  ]
   cout<<"Lee的身高是:";
% o; d) Q( J+ X, y- V( z1 f2 p! t   Lee.GetHeight();
. N$ x6 C, s: h1 C2 R   cout<<endl;
3 U% l/ j) x# [. b5 B* ?1 I2 A   Lee.SetWeight(120);
; w% \6 i5 m  y; H   cout<<"Lee的体重是:";2 v+ ]% g% M: t9 F8 b! V1 f4 F
   Lee.GetWeight();
) p( `/ Z1 f4 l: R: t6 M) w   cout<<endl;
) a" @1 s. @2 p' H+ m}
2 ]- ]) n( `/ A! p( G; P0 N# o第二种写法:
! S0 `5 u" c% C# ?( V#include <iostream>$ U2 H) J2 c) y8 M, H& z- \5 o2 m
using namespace std;
* b& ?- |$ }" n7 p8 p5 E) Cclass Human! B% R: r& I( X- w9 i% J  t
{& Q; p0 j! V! r
public:
& J! j5 X1 i/ S1 [; {. ^ void GetHeight();+ M/ [% Y+ a; e7 N" U) y. t8 G; E
    void GetWeight();; n* S9 F: b4 q0 K. g2 z: Z
void SetHeight(int x);
+ R; G# }0 v% v: H. x- {' l void SetWeight(int y);
% p6 E- @" `- f! eprivate:5 j+ t9 t# C) E1 e
int Height;
0 a" K# O; {% `9 b) v" Y int Weight;1 D1 n% e3 h: e, A3 S( C
};
  u" y6 ]# K$ Xvoid Human::SetHeight(int x)9 C& X: b2 l( f8 _$ t" N9 }# j9 M  c
{% D  A, i2 N  v! u/ F# L1 Z
Height=x;2 r) x6 i7 X4 k9 T2 W
}
! G2 r7 P# r9 }0 Y6 ^5 ~8 lvoid Human::GetHeight()
1 `' C1 {* ]) L& S$ G{* G7 ]. V6 ^% ^% h% C
cout<<Height;
  d* ?- h1 z$ N$ b$ G- f; _; l}! D1 `2 g2 v9 b/ n) y3 K
void Human::SetWeight(int y)8 L) W2 k8 N* K; b! f7 Y
{
' W" L; b7 B1 K* m" S; E Weight=y;
8 Y+ A/ |. c, a7 l4 s}  X( d. P, C) [( k2 d, X# T
void Human::GetWeight()
5 N/ E5 M/ y2 ~& E{
) r. E) k$ \  X  N  h cout<<Weight;4 `' o/ s% y7 u" c6 L. {3 E) y
}! B/ s5 f3 v" }$ n+ O! x
void main(void)9 {" c6 D" L/ C7 R- s, {
{
; S& {# {6 C: X" i6 u" ^( n8 [   Human Lee;, w: {% o. ?3 {
   Lee.SetHeight(172);7 ^) o8 d9 P& ]+ ^
   cout<<"Lee的身高是:";! y: S: H3 b+ e9 l
   Lee.GetHeight();; `  Y2 P* c( H& m7 I2 q; Y
   cout<<endl;" p3 U) D4 `3 [
   Lee.SetWeight(120);
# ^# j. J- s# a) I   cout<<"Lee的体重是:";
: ^" ?! P1 c* J) q- |' G   Lee.GetWeight();; D/ S: i1 s" [  t; R
   cout<<endl;7 D# e( f* O& M* j
}, Y/ g* U. ~9 j, F2 q
推荐第二种写法
7 W7 f, L8 w% T% I0 j
; x* v& H; q" X, R, V+ L  R( _: @, n% y0 |1 [) [; _0 j
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