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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:
# [8 h6 ~3 C; I' L" q" l3 `: B#include <iostream>
# O8 `1 Z- N' m+ W/ gusing namespace std;0 J. e' z% }1 w. f7 {
class Human
& \" P* G* A- y2 Z* ~, Z" n( @{
. m* n- v/ \; a0 Rpublic:
; X, o! A0 U! j6 M& ~0 E5 @/ }( ] void GetHeight(){cout<<Height;}
1 ^/ s1 B/ P2 c( G; J void GetWeight(){cout<<Weight;}; C, W/ z6 s/ u+ V" U- q) }
void SetHeight(int x){Height=x;}
/ b4 c6 U4 l5 p3 W7 q) i void SetWeight(int y){Weight=y;}+ a3 h" |5 E2 c. X2 n
private:
" q2 x. Q! ]6 X8 E+ S int Height;, `( M4 T$ J! i
int Weight;: l" [/ _4 v* C0 n
};
" x' O  Q9 p* ~/ o7 `
4 ?# n/ l; v. k* w8 K1 V6 qvoid main(void)
3 J' M8 p9 \4 U, z& z0 U7 Z{
- d: y3 k9 o' i  T5 W   Human Lee;
5 [0 s, a) W) ]( B   Lee.SetHeight(172);9 B. F* U# T- u9 |' i
   cout<<"Lee的身高是:";$ J( J2 L' d9 e; M4 K
   Lee.GetHeight();" d0 [# t3 \6 w3 N3 F) w% t5 F
   cout<<endl;& t& u) E; g8 L/ R, z( @
   Lee.SetWeight(120);
, d# X' h; g( K   cout<<"Lee的体重是:";
5 b' r  @) N+ a- R   Lee.GetWeight();
( `2 r# Y  F6 v$ F3 c- |   cout<<endl;- C+ r# I( K4 F* w0 b8 W4 J
}
# }' i3 Y! H& W3 x# [$ x第二种写法:6 W7 Y' W" a# x! ]7 D0 n
#include <iostream>
7 O$ I8 {4 {- S8 x3 kusing namespace std;
- A: U* D, D$ m# Kclass Human
3 z! J  |) L* L1 A; a{4 N% N: {9 r( L. h
public:
* c4 r3 s: ^6 `: o6 R) r1 I! @/ ~ void GetHeight();/ u" M2 I# F& {+ {* |; F2 ^
    void GetWeight();) D1 M. C* S  t" @
void SetHeight(int x);
6 `. i! W( C' E+ \ void SetWeight(int y);( V) z  s% \% B4 B
private:& T. U7 V' G  ^! r! w- ^
int Height;$ ^# O2 I7 _. H) F  \# Z" d
int Weight;- D4 E5 u% e  {1 ^$ r9 }/ K
};, m% l& u- r0 ^- Z& X) z
void Human::SetHeight(int x)
' Y4 R( l' h. H! y& W: g7 @! \{
7 G% B* z% _3 E8 \ Height=x;. D1 c+ h# U' T' X! {' B
}1 E- _; s* e/ x1 k' g5 ~0 L. A
void Human::GetHeight()+ g( w  P# U0 I/ s$ y' h
{1 T% @2 ]2 J+ e; h7 G
cout<<Height;
/ l/ X, n& }- {5 R& ]8 |8 J" O}2 I7 N) H2 s. ?9 ^7 {
void Human::SetWeight(int y)2 B6 N% M* I" P9 M. b* i8 B
{- V& \  j0 ^, O
Weight=y;
$ V6 Z! i+ h/ ?" F& Y4 J3 h' p& ~  ^}. p0 [! q7 i$ j
void Human::GetWeight()
( O/ d* [# h& T+ c. G{
! _- b; ]* p; ^5 g# J/ q4 K cout<<Weight;( ?: O/ L1 i: m. o
}
9 r8 c% I& ]/ E2 Kvoid main(void)
" n7 o% d' W. {/ {{
- ?& U% O) s+ A3 M) y# g! \   Human Lee;# R% f. T5 D. W& q- }# |& ~
   Lee.SetHeight(172);
  @* \$ q: ]5 e) d1 f! ~& ~   cout<<"Lee的身高是:";
2 X5 o9 n$ ~( y+ y6 L4 L   Lee.GetHeight();" R! O7 o' o6 A% u( ]$ m5 K
   cout<<endl;5 [! {1 Z. s3 [# ^1 l
   Lee.SetWeight(120);( u4 u0 T: \( K/ W8 @
   cout<<"Lee的体重是:";
, R) e6 S; n7 n7 u7 Y' l* w   Lee.GetWeight();
4 N: u7 E6 I4 C% z+ B5 k; d9 k   cout<<endl;
+ Y) w& z1 h2 Z$ v}
) q; l0 c6 H, _推荐第二种写法
; y5 H7 `! ^2 w. {% ?& g" [$ l: }

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