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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 _) d* Z$ b2 ^7 Q#include <iostream>
% B8 B4 ~# N6 u9 N* ~5 Susing namespace std;
# N0 |% l  l% N6 V0 _6 J5 A. Fclass Human) e' Q7 P' `: W3 D
{
7 i; q3 b% @$ z; t" M. Y6 o# vpublic:1 r$ a: B- P( s
void GetHeight(){cout<<Height;}
. h' m- f: ^* x8 j2 \2 G* c void GetWeight(){cout<<Weight;}
5 V; K- ^% Q) |7 \/ y  u( V void SetHeight(int x){Height=x;}
1 c8 \/ Y  i! \3 [! f void SetWeight(int y){Weight=y;}
4 P9 U: F, u! c  I" _: uprivate:" H3 J+ o8 Y/ W) ]; ?+ k
int Height;
, d" A: }& Q+ V int Weight;
) F- f* B" l5 N};
/ I, P1 W- O, I1 N9 |
+ G# D. k+ F+ J3 Yvoid main(void)
5 G) g- w; u* U0 g! U4 x% J{
2 s; Z( M- m% I) J+ E   Human Lee;
- u/ X) Q) X' L  E) P   Lee.SetHeight(172);1 G1 ?4 t, _# l# ~  K$ Q* L4 M
   cout<<"Lee的身高是:";
8 e+ f- k2 j8 D: V6 k$ C   Lee.GetHeight();5 J: _( T- Z. C- a! ^9 O
   cout<<endl;
$ f/ f0 T) K; K   Lee.SetWeight(120);
: r( ~8 d4 |1 v3 }0 F# ]   cout<<"Lee的体重是:";$ z0 ~6 m! ]+ q9 \! U
   Lee.GetWeight();$ F" r  n; S& K  @! t) t! k; Q
   cout<<endl;
* R; T7 p3 Y2 g* d4 B}
  F1 N5 n2 j3 v1 m- s; C: ~第二种写法:
* n# W' L. y- l( g8 u#include <iostream>5 \6 v& h9 T9 \/ C2 W
using namespace std;
. L9 Z$ c% m" x% q8 A9 F- m( \class Human) ]9 K1 Y/ X% W3 F% {4 y
{
% j6 J/ @: j. [2 mpublic:" x' ^6 i7 C/ @4 T9 a/ v
void GetHeight();
& D; g1 R! f$ g+ I/ e0 Q    void GetWeight();
8 ]/ H! L# [( S, ?+ U4 v, w void SetHeight(int x);! U$ Q8 V/ ?& @, W, C
void SetWeight(int y);3 d) ~* S2 A7 V6 A! h$ f% L
private:, ^% N+ E  E; Q$ L% N* f$ b
int Height;
) b  u$ `' C3 m/ H5 u; `4 ]. ~ int Weight;
: _" d$ `; `; W7 O};
+ y; v9 y! x3 `. _- q/ b1 m" C% xvoid Human::SetHeight(int x)
' v* v2 a9 s+ r+ {# M, k8 C) N{
4 D6 @1 G0 J4 u  S( n Height=x;* W2 @0 d$ x) ~& p2 t* h% b
}
( p; E2 V3 g# tvoid Human::GetHeight()) t1 \/ g* t1 K' c4 f
{; n  V& B% V4 m. |6 [
cout<<Height;% T/ ?4 B2 ~# @* K! r! N2 Z, i
}
$ s* c% T5 I. D; H# Hvoid Human::SetWeight(int y)
# e; C: h  R' r{( J9 }* Q3 D! x( n+ P
Weight=y;! k$ X/ a  s, i
}6 c& e, m4 `' |4 W) T; n; m/ ^+ ^9 L
void Human::GetWeight()
8 Z( C6 S: u8 x9 K" [8 O{
3 X2 y# s# X& c7 s0 I4 s8 I  r7 B: y cout<<Weight;
" _6 W3 N1 a- e2 i3 v) N}& s# T1 n, n" k0 [4 d, g' O0 N1 h$ h
void main(void)+ |6 e, A$ o5 G4 V2 [
{( u7 z& p1 t/ }# W% I; x9 P
   Human Lee;2 x1 o! {2 Z4 c3 z
   Lee.SetHeight(172);% [2 y: |( S# X( F$ g3 F* Z5 ]" L
   cout<<"Lee的身高是:";' R! ~+ \- I2 L5 O9 ~
   Lee.GetHeight();
  T- k2 N: |( |- @; a   cout<<endl;0 A' ~9 x5 h; u0 x, n
   Lee.SetWeight(120);
$ j: x  J9 e& u4 y1 Z* M9 k0 Z   cout<<"Lee的体重是:";$ J% h- Y" V3 F  L& w: H. P
   Lee.GetWeight();7 T0 V& D( ]6 B2 ], X8 S  \
   cout<<endl;/ N1 W$ m5 e9 {$ W
}/ ]- L0 s; D- j* g& L: i- Q5 C
推荐第二种写法
+ ?3 \# Z" W6 l6 U: d4 S) b9 ~. k  k: r% b' ?% ~( m
2 o- N0 X3 p  E7 R
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