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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:
0 @6 N5 e( D- m" G9 V5 f& {  G5 Q#include <iostream>
# p- w! y1 k1 `4 \8 T! t& [) lusing namespace std;
3 p. T1 b& \  Lclass Human
2 p( \3 k# m8 M6 J' l8 |. W{
2 m! x2 s( f3 ?$ }public:
) m" ?# V/ k* l" U/ L void GetHeight(){cout<<Height;}. W7 P1 M: j# l/ c6 I  R: L
void GetWeight(){cout<<Weight;}3 v- z$ N2 _; M1 i9 E
void SetHeight(int x){Height=x;}: c2 t2 p/ _; v5 v* H5 A
void SetWeight(int y){Weight=y;}6 y7 P% L% q6 ?, ^4 f8 k
private:5 c4 M. o. ^- X( k
int Height;9 J/ V; ^) Q! Y1 q( P
int Weight;
$ v, g% `4 E% T2 S& u};
  E2 O+ Z- c8 g" Y2 u
" J# i' m* M4 Q9 Ovoid main(void)
4 r2 f# l+ a/ k9 {9 j; U% `0 F2 V{# }9 m5 ?, a4 ~! N0 M  R/ I& `
   Human Lee;
( A$ _8 q+ U. F, f; F   Lee.SetHeight(172);
* w1 L- R$ h$ k# n- B- N3 f4 c! \   cout<<"Lee的身高是:";
6 ]6 D7 b7 h/ L   Lee.GetHeight();; T  ]! l  [8 x* z+ J% D: S% I
   cout<<endl;
# a7 i  }7 ~: v4 p   Lee.SetWeight(120);
% W. z$ ~8 e" d, S8 H   cout<<"Lee的体重是:";+ Z  i( e3 K/ O1 R% Z
   Lee.GetWeight();( }" z6 m/ U6 Z' ^+ w  w$ O$ e
   cout<<endl;6 }! }( E3 F: c/ c
}+ C5 @2 l0 l) m+ j1 d
第二种写法:: i" e4 U- I" n
#include <iostream>+ ]5 m! H$ W( i+ F  H' N
using namespace std;
* r: q. Y6 ?' F; j( Z* a/ \class Human
( l* k5 ?7 @% z+ p{# U4 v3 a$ G: s2 |" p
public:3 g$ C4 u$ M/ n: O( u8 p. I; u
void GetHeight();1 A: |: W. C$ K7 g2 w/ S
    void GetWeight();7 b0 `5 S2 d% W  A+ O
void SetHeight(int x);. r# U" I& I2 N" U7 s, k& l# r$ `* t
void SetWeight(int y);+ e, O0 |; `. {  q
private:# z" b. H; w7 b9 [, f( H
int Height;+ N, }- [5 n1 w
int Weight;
- R% g- g0 g8 i# j& ~6 q2 D};* S7 h- p4 P' K, @5 n8 T
void Human::SetHeight(int x)$ ]& ^( w! G* h  |, `+ _
{1 v6 W! H, o. d: i% t% ?  ~$ k7 `) b  b
Height=x;" B& ?; t/ {, h$ _0 V
}
  b$ x4 Y4 K: B3 c" vvoid Human::GetHeight()
% g+ F  S' P! _& S5 u{. ^1 O0 m9 v, v: o; l/ B/ L
cout<<Height;" |+ d3 j/ q& }3 j
}
9 w& S% ]7 ]/ ^& E# [* avoid Human::SetWeight(int y)2 n/ m4 {* [# H. ^- T: @) @8 z
{; O( z& S' i9 i! K# `1 m% Q* R
Weight=y;
' M2 m& B- s+ E6 L& \9 f3 d+ i}8 v  d( }6 C9 K2 _! E4 X
void Human::GetWeight()5 Y. J9 J# F  s0 X  g! W8 A0 K2 c, P
{
  k/ A' O% c! Y  U; _7 l7 o cout<<Weight;
8 U6 e, A4 I7 w* _& x* j( b( s9 o}
4 \4 ]; ]  i! i/ f4 xvoid main(void)# g9 c/ x; K4 o1 ]+ A  i
{
; @% I5 W1 l; i   Human Lee;
# D4 s! K4 e8 \( S! X& g   Lee.SetHeight(172);
- a! k) f/ l( M& q6 P   cout<<"Lee的身高是:";
7 g! ?' Q) p! Y* n9 f" C7 G   Lee.GetHeight();
0 N$ b6 J+ ?% @6 x+ s5 x; `8 {   cout<<endl;
5 R9 }. x7 n" ^! K8 b( ~   Lee.SetWeight(120);3 b3 l8 c1 J3 Q3 b
   cout<<"Lee的体重是:";$ {" j3 Y, \" p6 V  j- _: E1 d! K
   Lee.GetWeight();+ s& [4 c0 H) m# `' U
   cout<<endl;
& [: \0 z7 D+ Y}
  ?' l. r7 J6 q( O" L' L  t推荐第二种写法  _' m/ D" t0 D! z5 h
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* n- D! M7 X1 u" h! `$ B- i1 g) j
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