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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:
5 C' n+ K" ?) o#include <iostream>
1 T! J* f$ s7 s9 t5 Gusing namespace std;, D4 P5 M( D1 h/ I# \* V
class Human
; S% ^( O3 W2 s2 C0 G8 I{
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void GetHeight(){cout<<Height;}& s4 J2 g4 d2 v
void GetWeight(){cout<<Weight;}( k. p# @# ?% H+ C0 r  t0 I: F
void SetHeight(int x){Height=x;}
( T$ e' z( @1 V; i7 E void SetWeight(int y){Weight=y;}! y/ K, w/ r5 e7 ~+ ]( M
private:" a) r; K% i; H. {+ s, q
int Height;0 A1 B* P0 v. k& B7 a- o
int Weight;
. F9 a3 A5 @2 X) v$ `};
& C" ^. Z1 F8 A) O0 p
' n, g- S2 y8 E5 l7 `void main(void)4 Z- w) z( L$ V2 M
{
5 P. {# X  E1 B% J   Human Lee;
  V0 m; L0 v3 x1 ^) Y% T2 r   Lee.SetHeight(172);( J# f! m* d6 C  H% O
   cout<<"Lee的身高是:";
1 h) ~4 b; N+ ~( V4 |   Lee.GetHeight();: a( v( E' \9 F: E' |; M% Z. X* P, N
   cout<<endl;- F' b# f- T( a% f7 |! Y4 n
   Lee.SetWeight(120);
1 [9 f6 J. x, b   cout<<"Lee的体重是:";
$ P0 S" ^- e) x" W   Lee.GetWeight();5 U1 k1 g: ]8 s( K3 \4 g3 }1 r
   cout<<endl;
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) q- j+ l; Y5 u' E2 \' @9 `第二种写法:
7 X( G3 z5 i( Z! B$ P' ^#include <iostream>! w) i- Y5 J$ I! G' H+ ?0 N
using namespace std;
2 {9 J* o8 r. ~1 N6 t' qclass Human
& H" x* [6 S0 u: V3 B{; K, y( R* y5 L  |/ c! N4 E
public:0 U2 o+ q" F* n  j
void GetHeight();
7 P1 u' w% y" R. k: C, c1 ^  I    void GetWeight();
$ n# P7 L0 N0 W$ {) d, x void SetHeight(int x);$ B" a" d7 `) _. \
void SetWeight(int y);
1 e! @$ y5 E/ m* n& jprivate:. L; Y) ?/ Z5 A
int Height;( v7 K7 s- T, |2 i- n
int Weight;
  r, g  }7 S5 K, K3 P0 H. t) }};
8 P+ I, \) a, B' c6 T. ~# vvoid Human::SetHeight(int x)
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Height=x;6 ^, ?3 M, K: A( |
}1 D% l% W) h+ K5 h
void Human::GetHeight(): K* s+ M' |/ k
{
5 W0 m$ j' Q' {  n cout<<Height;/ q; J) V" ]" m7 L4 y
}: k  w: A+ O6 J: c3 `- u
void Human::SetWeight(int y)
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Weight=y;
3 i' `0 R# M' w! I}
# c1 e: b6 G. m9 @. c+ cvoid Human::GetWeight()7 g. D7 K* Y7 Q, @$ O; H& r
{
" A8 p6 l: Z, F! ^ cout<<Weight;
) E9 o' m  |6 P. \  L/ F0 h3 @}' n% o3 Z* U. p" z% W% H
void main(void)8 I( r" ?6 }1 e6 j9 G# ]" w2 R
{# L) v! u4 L& B* a+ c
   Human Lee;
* }$ V+ W8 k' A1 t) |( M! b   Lee.SetHeight(172);
+ N. ^$ D9 R" q% t   cout<<"Lee的身高是:";
& P. |- [8 i; R/ k9 |1 z   Lee.GetHeight();
+ _% B. Y! _8 T8 a: z   cout<<endl;# B8 y1 U4 y! x7 g, A1 h" r
   Lee.SetWeight(120);
: n0 o2 p& ?$ c) T+ \& k/ W! Y   cout<<"Lee的体重是:";
# p2 z- Y! c# O* i! Z6 M   Lee.GetWeight();
( Q5 Z  E# r. S6 J   cout<<endl;
" a5 ~, w8 u0 Z# F6 D' i/ i3 V2 e9 L}$ Y+ w" j5 {( U/ x& ~& @! a7 I1 O( s* W
推荐第二种写法
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