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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:
: r7 r4 j" b& @/ E1 v: u% h) t7 o1 L#include <iostream>( R$ n0 `8 {0 i) F2 e
using namespace std;
# ]4 |0 F5 _( V0 ^class Human
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public:2 i" n+ [9 B+ V- V# @: ?9 S
void GetHeight(){cout<<Height;}
( _, C7 l* p7 o$ x( l/ r5 y void GetWeight(){cout<<Weight;}
3 F! p. ^6 j& {2 F void SetHeight(int x){Height=x;}; e9 K9 E6 h1 c
void SetWeight(int y){Weight=y;}
% x1 ?$ u" h" m' q) S# ]private:5 c# Z3 J) H2 N2 }
int Height;
0 X) V8 Q& }3 W- p7 d4 W int Weight;
, R; ?* e: h8 Y* _# c& h};  V4 U- E# }7 `! F) F  t
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void main(void)
! M5 S1 x7 N9 a) f8 t" N+ x+ U0 L{
9 B% R, R/ C+ i- j$ A   Human Lee;
# y( p# N( `7 |3 ~) s   Lee.SetHeight(172);
3 Z% _3 w/ h' \& v   cout<<"Lee的身高是:";2 b1 i6 B1 b5 ^: W
   Lee.GetHeight();  A8 R2 u7 }' S7 x+ g, z
   cout<<endl;# y8 U5 p1 J' [% G* m
   Lee.SetWeight(120);: C3 U: [! y% c- D
   cout<<"Lee的体重是:";( ~  i4 ?$ m0 f
   Lee.GetWeight();  s( a' W9 a1 W9 X
   cout<<endl;* o5 y' @/ H* G/ [+ M
}/ \+ K1 v1 Z# C
第二种写法:
* h) [8 ]. u. s% q" n, ^; s#include <iostream>
" T+ G6 i7 t& h" [1 a( _using namespace std;
, R" J; [6 Z# o( F# Q, w% sclass Human
# ]: H9 P0 {  i% R: O5 T2 o{
3 s# I9 d; N; l  p! r* \public:) Y8 P, g9 R0 u0 J& W9 P% y
void GetHeight();
  l+ p" ~* [7 j( f! ^# K    void GetWeight();* s* P* b" W3 V
void SetHeight(int x);3 Z! G1 @, w" e9 \$ I7 }
void SetWeight(int y);
0 z9 t& Y! ~5 g0 y8 Zprivate:9 y6 O; z5 i( s; X9 y1 s
int Height;
5 _/ a& }# n7 W  k6 M7 ]1 n! I int Weight;9 ~- x/ s5 H. G' f8 `5 _
};5 z1 A9 U' l3 [; v( w5 u0 c7 X
void Human::SetHeight(int x)
4 Q- l& {( ]9 y  T! J5 O{
- a8 Z2 N9 b0 l/ U Height=x;
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void Human::GetHeight()+ W2 D; e4 C4 f# x& t# h5 F8 w
{  w2 }+ l9 i) O0 J; x) e/ e
cout<<Height;1 E+ a6 m6 ], \% |4 p1 M
}* r/ [1 @# J8 L4 N+ v9 f
void Human::SetWeight(int y)9 O3 {0 O* w; J' b1 s$ D7 k- \* \' m
{
4 i3 O# @# q7 z) F: c: F Weight=y;
" x& e/ s1 O/ l* r* P}
+ D, L4 V' h2 W# v9 m2 {8 bvoid Human::GetWeight(). {( _# C8 T! N  @9 n
{
6 [) w. O2 H4 A* a" F* B% D& J. j. \& N cout<<Weight;3 w0 _+ y" [- U1 e
}
( A1 P2 X$ k# s7 Q4 e( hvoid main(void)
1 M  z! Z7 H6 E) c2 W6 v* c& l/ [{3 c& @( \+ f# y( G
   Human Lee;
" }* q+ c5 I% u) Z3 R! m) t   Lee.SetHeight(172);& F# x8 }% ?, }: ~/ }0 p
   cout<<"Lee的身高是:";$ o3 ^. R1 M8 R  V" j3 ?
   Lee.GetHeight();
0 P% ]/ ~4 [* ^0 f3 `   cout<<endl;
( U+ e$ P# G" M   Lee.SetWeight(120);( p, B' J. y1 a7 Y8 I/ }9 C/ {
   cout<<"Lee的体重是:";( H6 o# Y4 b# y+ @! x- Z5 s6 T
   Lee.GetWeight();
6 _. o% E2 O% f' P1 O0 A   cout<<endl;' V4 X1 W0 p7 `/ u3 J) m
}
: O$ C. J3 z$ {5 G( @/ h5 v推荐第二种写法- o% Y: G' y2 C1 t( h

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