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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 E2 B2 E4 A  K* E#include <iostream>
/ l  H4 N2 F# s1 eusing namespace std;
, e) E5 v% \4 Uclass Human
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public:
$ t9 w: k2 o4 O  P& ~ void GetHeight(){cout<<Height;}) z$ n3 H) `3 V* W. B. V, j
void GetWeight(){cout<<Weight;}
" m: X7 H! q/ \4 ~ void SetHeight(int x){Height=x;}
# e. q' U" \  s( I4 A) |0 S2 Z void SetWeight(int y){Weight=y;}& \# M9 G5 \. |0 |2 i" x, `
private:$ t2 h, y! [% |3 ~
int Height;
$ h6 h0 `- ]$ f8 Z int Weight;
/ f( x7 l% Q' d  p+ L# y% l};. N1 M( k6 x9 H4 K& L
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void main(void), \# d( k* \) P: L4 R
{+ e3 H' p8 ?* c1 p
   Human Lee;
, B. P  u1 {6 U/ ]  s  J  n   Lee.SetHeight(172);' z8 a. Q7 T! E+ S
   cout<<"Lee的身高是:";" b2 D' R9 Z5 }/ W4 P
   Lee.GetHeight();2 y/ Z; g& G0 m5 s! z! [
   cout<<endl;
9 v& l2 U; Y* D  g   Lee.SetWeight(120);
7 e3 H0 f% _, c9 h& O& Z   cout<<"Lee的体重是:";
- ]% ?! w/ ^6 |# _- O9 {+ y8 ]; @2 Y   Lee.GetWeight();) t. k5 h! D$ o( `2 O: W* c
   cout<<endl;
0 D: ?% e8 N7 ]; n: X+ f}
; A, U0 |( d; V7 }! i- o7 L0 x第二种写法:" T; ^+ W, t, J$ E1 B" f
#include <iostream>
9 D6 _9 y' o9 G5 A0 gusing namespace std;. ^) y& }' X, i+ W9 |8 R
class Human& Q. F3 }  G( y$ H+ j
{) [1 |$ j. C! @  q
public:7 f0 g$ X6 y9 e" D7 X% U* A( b
void GetHeight();
- i  U1 @4 C3 B% I9 S% R+ |    void GetWeight();
, s$ m' h. \  b5 D. d& a void SetHeight(int x);
. B; y, t8 V2 k  h2 @ void SetWeight(int y);7 _! x) t: D7 E7 d. V7 K
private:( ~/ h0 b7 q& I  M
int Height;
0 I) w8 S- c# k0 c, ?+ X' [ int Weight;
0 ?9 N0 m* ?9 L- P4 s% T' q- y};+ G2 R5 C) e8 x$ H( |0 R& I
void Human::SetHeight(int x)
3 [' ?& t8 m9 J$ i' }{& ~/ Q; T3 ^1 E' @1 D: \
Height=x;
/ @2 E  v8 J5 V- H}' F; H- }6 z0 a1 G
void Human::GetHeight()9 b! U; b% _" S+ H) j
{
2 l  C; q$ g, C2 f cout<<Height;& V# y5 ]+ \# P* x' J
}
4 a, w$ L. S. H( wvoid Human::SetWeight(int y)
- e" ~' B$ _# n% g: @1 T{
5 c" U9 }* N0 W9 `7 V9 ^" Z Weight=y;
9 p" g3 @: B% A6 w0 V* O1 i! ?}
1 I8 f% {# f: z! f; Nvoid Human::GetWeight(); F" d0 ~$ `( Z' k
{+ S( E' o; }- ~3 J0 U' ]# v
cout<<Weight;
( J7 `& g3 z# u  |8 M}' c! G$ y4 P" X$ V$ y3 h- x
void main(void)
8 c* K. ^8 k+ J6 k4 {) @4 S4 [{0 s4 f/ k1 s$ G3 K, K
   Human Lee;9 O$ X2 {) r/ l; v
   Lee.SetHeight(172);
! C) |" U7 r; V8 U5 f1 t   cout<<"Lee的身高是:";
) n) M6 L5 x/ I0 }   Lee.GetHeight();
4 T( E$ z' K. p   cout<<endl;
( v. C$ L  ^- p   Lee.SetWeight(120);
  E, K. r' t3 Y" O   cout<<"Lee的体重是:";2 x6 F8 ^! j, D3 q" {+ B) Y2 ?7 [
   Lee.GetWeight();# ?  o1 J- [3 y  U# N1 Y: K
   cout<<endl;
2 I! n0 |  I0 T) @}
) k, d3 Y% s. h- U7 P推荐第二种写法
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