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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:  O: u/ m3 O- c! y6 G) [
#include <iostream>
9 H: m! }$ v+ \2 i; l& ^3 }using namespace std;4 j2 [1 h; [" A) `, x% {+ j' ~' {. z
class Human
/ N( y6 }3 W; X' E" f  U{
( Y7 Q: ]; G3 i, x( X1 hpublic:& C6 O9 {9 M! x2 w
void GetHeight(){cout<<Height;}$ ?1 a$ d/ T0 y; e
void GetWeight(){cout<<Weight;}6 x# A3 r; W* }0 ?5 J2 [  c* b/ f
void SetHeight(int x){Height=x;}
. f- p1 Z, C7 w4 ? void SetWeight(int y){Weight=y;}
" b/ }" @8 K- mprivate:! t1 ]  y* r$ V9 S( `& W
int Height;# o* a( T- J1 |, \0 V( Z7 k7 J! @
int Weight;
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; ?6 ]3 R8 ?( }5 t% ^8 Fvoid main(void)
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   Human Lee;
2 _( A2 e+ `% v; E   Lee.SetHeight(172);+ N+ v6 C# L3 c; V
   cout<<"Lee的身高是:";
, i7 @% M, l  O8 P9 M; g   Lee.GetHeight();( f6 U, i% y( U
   cout<<endl;
9 Z. V4 i1 b& t+ D* [, `" b  _   Lee.SetWeight(120);; {7 H0 r2 F; \- _+ {& a4 E( ?
   cout<<"Lee的体重是:";. k% Q* R3 B/ ]4 `
   Lee.GetWeight();
+ T$ }/ k5 P: B- e. D   cout<<endl;
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- {9 G& u' y1 \: d第二种写法:  S' ]& ]8 _9 K! G
#include <iostream>
5 w: a8 S2 ]" ]9 |- C6 H" Z) Wusing namespace std;
# M  B* n/ z  Sclass Human
4 y' v8 a$ @* @( `9 d{
! I6 n: q' f2 H/ Rpublic:/ |/ g& `* ?+ O: S4 S/ g; H2 P
void GetHeight();# B6 H1 D* H( C
    void GetWeight();
/ K- e4 E3 @; O. V void SetHeight(int x);, i2 g3 R! C6 w7 U0 B" T7 w
void SetWeight(int y);) v% g' `# ]/ k* g. ]6 ]1 V% V5 h
private:3 N& I: d- p3 o% C& f% L3 }( Z
int Height;
; ^! q  M3 I1 A# W+ V* f0 M; L8 g int Weight;
7 M; U$ l  c* b$ l) d6 u" t};. o1 w% x5 E) _, j. w/ x1 J# l- q
void Human::SetHeight(int x)
8 a6 O4 g- I% M" U! o' Z{# |: a4 y# U: `
Height=x;
3 ]4 m5 E8 J) M% \- U; h$ j}
4 Q0 i! S# V* \void Human::GetHeight()9 p# @- x) {4 |* `. @: Z
{
, }" m8 P1 H9 }3 @3 h8 y8 ]( _ cout<<Height;& S  J4 _, I: X: U
}
# ~  G/ p. `6 g# _5 J6 w) ^3 gvoid Human::SetWeight(int y)
* A1 I' ?5 `. r* X2 b! H% |{- o- P: O# o" Z+ x
Weight=y;
- r: u, o! Q; P& m4 q5 e  j}
4 u5 k' j. O7 x* pvoid Human::GetWeight()
* k2 P' F9 p3 @{- E! h( W3 g) {
cout<<Weight;
9 X& r( F; T; j% `; n& Y}0 T* ?( _7 {9 F# g4 A" o5 a5 J
void main(void)9 B0 _9 e" c* e$ ^
{
( W# J6 u' r) L" B* I! o  y& I   Human Lee;6 W; S! W8 p% B: |0 U" x4 L; z
   Lee.SetHeight(172);
, {+ j; u4 w/ S4 q0 A   cout<<"Lee的身高是:";
: R# M* w" H# j! ?/ q& V   Lee.GetHeight();/ k- M+ @$ U0 h: r) Q
   cout<<endl;
0 O+ E/ ~; z+ G  z$ h   Lee.SetWeight(120);4 D1 p+ n* m! O/ Y. z& e. ]
   cout<<"Lee的体重是:";. ^" w* w! I. k  _
   Lee.GetWeight();2 M- i% t  e: G" r( @
   cout<<endl;
6 G! |. {0 y, M: k# J" Q; p- d% B}3 x( ^. c/ _0 t0 ]- M4 }
推荐第二种写法
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