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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:
6 t& n- o1 k2 V- y  t, l  ^* c#include <iostream>
* @, v+ s+ q% k1 y$ @0 X2 susing namespace std;3 {* [# e4 k5 ?( l
class Human3 }: S5 l: F# i0 {+ R
{
7 v# q) C. I2 S* z! e( P! Dpublic:
2 j/ C+ R) z3 r0 U: H3 G- |. F: [+ d void GetHeight(){cout<<Height;}
, X) N0 Q7 M; m+ {' a2 s/ u void GetWeight(){cout<<Weight;}9 t. _: Z, ]# m: n
void SetHeight(int x){Height=x;}
; G6 r$ X2 ?6 \5 h& y3 u4 v$ c! F void SetWeight(int y){Weight=y;}2 H: Z6 x. ]8 b4 a# Q+ r
private:' ]) }/ M5 k0 R9 t8 w" g% ?0 j
int Height;: M. Q8 {( m! j( X0 z2 \5 o" ^
int Weight;
7 [/ H8 B1 C* N) T- x0 p% E; `+ R- z};
2 l5 T& a  v/ s9 v% B/ O$ B$ ]
/ u8 x! x. y, Z1 _void main(void)
0 M9 i# P0 {. h$ Q{
2 a% n- c% z  ]- |: z3 h   Human Lee;
+ h9 j  {$ U7 A( i/ U/ r   Lee.SetHeight(172);
/ O5 j; i* Z+ i! l# E( P2 h9 I   cout<<"Lee的身高是:";
3 h; Q8 }1 F; R5 [: U9 W0 N   Lee.GetHeight();
* Z' U" U' _0 g. Q   cout<<endl;8 V3 M: P+ `( K( V
   Lee.SetWeight(120);0 Y8 M) o4 m: _) ]
   cout<<"Lee的体重是:";& c7 i8 ~. j1 n0 _
   Lee.GetWeight();
; X: ~. C/ l% D/ j. ^   cout<<endl;
9 r8 y4 {7 G  w% W# n! ?}
! L, x( _4 d& H* |第二种写法:
" H" n( o6 }6 x! ^3 O- U  M#include <iostream>
. z/ v+ A, x) Eusing namespace std;
: c# c2 \2 z# g1 I- S( \' Jclass Human9 U" t- n* d5 q
{% T1 [4 ^1 [# @) U: G1 _: r! {
public:
, w" ^  ^9 N% p( Q, g" s1 z void GetHeight();. `1 F& A  j2 u  M* u* N: |
    void GetWeight();0 c" i( ~1 {: l6 [  `: Q- K
void SetHeight(int x);
/ _/ D: f6 \1 ^. R5 F9 l. ^ void SetWeight(int y);
( o: P9 E- S: x' K, [private:3 r1 s, V* J8 A0 Q3 V, Z- S8 i1 o
int Height;; v$ o2 k" z0 E3 ~+ O8 ]! a
int Weight;
& k. N3 t; _) w4 P0 }( C) m8 S};
) `3 O; Q" d- }void Human::SetHeight(int x)
) O  l* j* }+ J+ S2 e% k{$ R$ V5 d$ d# P
Height=x;5 A5 i5 X: T6 o1 s
}
+ a1 G: s  @+ K* P0 Xvoid Human::GetHeight()
/ e, t* i8 d  ^& r7 Y{( O! F! p. I4 Q+ L/ t5 w
cout<<Height;
1 j, Z- w: e+ X! `/ Q}) [, X4 D. h2 F) w
void Human::SetWeight(int y)
9 F2 d9 Y7 Z" S( T2 s% p. w3 ^* T{8 X! b) h6 h" z. a
Weight=y;
2 A8 [8 u: ~4 F4 {}
* U" @. s3 \' |void Human::GetWeight()
2 w" Q/ |: Y0 h: F{
, w1 O+ F7 s) ?# O0 X' N& G cout<<Weight;
3 d9 l/ W% ?* [}3 S/ @5 b; Q' r
void main(void)! b; t, k9 r1 P& S. N  `0 u, {0 L
{% _0 a1 c2 q& x0 l' A7 y2 L0 a. d. T
   Human Lee;
# l) K5 _7 L$ a7 C   Lee.SetHeight(172);# h! x7 F, d) o, z
   cout<<"Lee的身高是:";
  b8 H/ P$ V  X: u   Lee.GetHeight();2 Q$ Z9 n7 |. p/ b
   cout<<endl;
5 a, \9 y4 x* }6 S7 ]   Lee.SetWeight(120);
% H  J' Y! Z6 \6 r- S  _& X   cout<<"Lee的体重是:";
- R' ?0 M" l8 n9 A! D' \. h   Lee.GetWeight();- @% o6 G) `6 n3 q( X7 t) d
   cout<<endl;
' E' A3 m7 _+ q0 F9 |/ V}5 I2 A, }( q% f. {7 x
推荐第二种写法
# ~6 V% w$ A" i: S9 U0 ^8 ?- d2 Q7 b

* B2 x  l* u! l. ]( ]
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