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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:
' e( q  v4 z  O) \! |#include <iostream>/ F1 I: M- _6 w  G- \  I
using namespace std;
6 O4 ]- Y/ V. C$ Q: D; gclass Human, S! }1 }! }- Q2 G: Z8 \+ d' W; N
{: B, w6 |4 N, _  w' I
public:0 a2 {6 ~7 e8 h8 U3 g
void GetHeight(){cout<<Height;}
/ N2 v8 V% F0 j% ~2 J void GetWeight(){cout<<Weight;}
( y+ O9 m# N4 k void SetHeight(int x){Height=x;}
6 j* |& y# d0 i! F0 V void SetWeight(int y){Weight=y;}
: C( E  `' k4 X& Dprivate:
- d5 N& t* ~# y int Height;
7 p: @+ l& ?* P7 @ int Weight;
# H( ?/ R1 P. y( I};
2 [; W, U4 G& F
% L: B- n- a* G9 A$ a* Kvoid main(void)
2 _* r; H6 }+ R' s# j3 \{+ C' o9 ?3 b" r% ~* [8 s
   Human Lee;  O7 e1 J- v. }( j5 Y
   Lee.SetHeight(172);
( Q5 l( I# T) d0 O   cout<<"Lee的身高是:";, t# K( B* i+ G; u. N# G0 z
   Lee.GetHeight();1 `* y) q# d4 e  J9 @/ z3 w8 h1 _
   cout<<endl;
7 V* |1 W( g2 ?/ V   Lee.SetWeight(120);
/ k9 G, J5 e6 d( C' L5 f1 q   cout<<"Lee的体重是:";" b( J. m8 E' e9 ]% q8 n
   Lee.GetWeight();( n+ y+ ^9 S! _
   cout<<endl;+ t; Q3 g: E% W/ R
}4 K' K1 B( T# Y% O8 [1 i9 R
第二种写法:9 Q5 P2 M: q! C0 p$ v9 j  l
#include <iostream>- K+ Q- |7 [& a, H
using namespace std;
- a: v/ {- [7 Sclass Human
, W7 r: U- G+ I* B* N$ S& C( Q{  N- u# E' X/ e! }( [
public:+ u7 I& R; B- d; n+ ]7 C8 a( f
void GetHeight();2 D. N7 k0 e( o! j
    void GetWeight();9 {! o" O7 L! u0 {' {& X, s
void SetHeight(int x);
( v1 L* a3 E: a- {, C7 g void SetWeight(int y);: C' B4 C6 |7 D
private:7 l% d+ C2 B  L* f" W2 }' F3 E
int Height;
$ I" G: B/ K$ ]3 }6 Z: W! k, n int Weight;5 v3 G  q+ y; I: ?/ P- b% O
};
4 ?3 k# u% t0 G  O4 Y. T: Ivoid Human::SetHeight(int x)
, r- C! {( o" q; @{
6 {) g, O! d: ]* h Height=x;; Q4 K8 k9 v0 E# e7 y
}6 a# @& Y- N+ w$ a
void Human::GetHeight()
4 C. S. F; U3 O# [' W6 |1 T- |{4 c7 M2 D' F" N4 p9 k6 S/ d1 y
cout<<Height;  m& a) f  m0 S9 a2 g
}
; P9 R8 g5 K& @5 r- o# H: [void Human::SetWeight(int y)
1 n- `  i' l% G{
" h! A0 b! ^  P+ |1 Q  D* } Weight=y;/ F4 o- @" R% R% X9 W
}8 i& p. R1 S5 G4 ?4 _  p
void Human::GetWeight(); J7 ]2 t2 t+ l2 h
{
& t( Y9 P% \6 G1 E. \- z cout<<Weight;; f, m; `. y5 D: _
}
4 x9 n# X6 Y) c) j; H6 c2 d- Mvoid main(void)
5 j! g' U* ]2 ~, a{6 K( E/ I5 V6 p) K4 s
   Human Lee;" `: f8 S" ~$ i0 X1 x' d2 @
   Lee.SetHeight(172);$ P. }2 y" h9 z% E
   cout<<"Lee的身高是:";0 W) r4 f* n4 m# J) y
   Lee.GetHeight();/ N: l7 @. X2 k: k; e+ o" \
   cout<<endl;
: l& t1 r7 R0 A/ K# {   Lee.SetWeight(120);
) @5 b4 J9 i: e# O   cout<<"Lee的体重是:";
4 N6 O6 h6 O3 p0 n: G( A* F   Lee.GetWeight();$ p, e1 F% T! S
   cout<<endl;
( v8 c! {7 _: T, ?+ g& a. a7 F}
; c3 P: P6 u: L: R推荐第二种写法+ T: F% i. z! t* w. G
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