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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 t; m: f! l" h#include <iostream>; f% ]( l- `% m! b
using namespace std;
9 \( p; Q4 |: K2 S% yclass Human
. O3 R+ A& U! Z( E; j$ k) f{
- ~- {- M5 {4 Zpublic:
& k! J+ n0 E6 {6 W- N$ w, O) k1 s3 y void GetHeight(){cout<<Height;}
5 [! \$ g; b& G; k* f( g' k void GetWeight(){cout<<Weight;}/ I' a  n1 L; h6 v- G& R
void SetHeight(int x){Height=x;}# v; x7 ^) P$ m2 j
void SetWeight(int y){Weight=y;}+ i2 z7 \" g5 L1 @" O- y* y/ ?
private:) f% Z6 _$ K) t0 Z0 Z- }
int Height;) `% ~0 b( R0 q7 o) t( M
int Weight;
' j+ _; S# M; R) C};  C& R0 i9 w  y" A; a$ C4 l0 {# y& V

1 i" ?" a$ F/ v8 L' z( Ovoid main(void)
1 V: g) F8 u2 X1 |# R2 |{6 b# M$ B9 y) M# H
   Human Lee;" w. ?2 {9 e* i( q) a1 M9 v
   Lee.SetHeight(172);
( O, n( Q! y" i4 n3 L+ X- `   cout<<"Lee的身高是:";
9 H: D' C+ z7 G9 M8 s$ }+ B   Lee.GetHeight();7 T  W  Z" W% g+ t
   cout<<endl;
. s0 @) y" ^' B1 _. B  ~6 r   Lee.SetWeight(120);( s. p3 v9 S3 I% p3 p
   cout<<"Lee的体重是:";
( a6 H+ N( `. l   Lee.GetWeight();0 F6 b$ Z/ d  ?
   cout<<endl;+ Z2 X. X. c, G) I
}
5 |5 v$ @' F5 ^0 ?" y2 g& I" ^第二种写法:# n: t8 D% s! l% V
#include <iostream>6 n8 R- o) N8 e  C- I
using namespace std;
9 E& ^0 E1 h% Y0 o8 Kclass Human6 v$ M0 l6 u6 J4 }( q# a/ a
{  @0 B1 k% Y9 M0 [% [
public:
* k, u0 V( b+ a* F. s. ~; v3 z. u( P void GetHeight();
4 k& S" ?3 u% E4 r- O3 K" C    void GetWeight();
6 ?5 ~: H& C) b& B4 g$ Q) J void SetHeight(int x);
8 O2 A9 p6 w& Q! _. z. |& W void SetWeight(int y);
. B, \- ^) ~1 W7 dprivate:
4 O0 V4 m9 {7 d0 r9 d8 x  d+ X0 T2 z int Height;* N( B$ E' I1 ^! a
int Weight;% I) s0 M' t* |) Q- s7 ~8 _; D
};  `- S5 b# _. d
void Human::SetHeight(int x)
; U3 w* b: \* D! B{: D& [" G, o  x9 J+ m% E6 J0 F" W
Height=x;
8 _" S6 \% a* Y}
$ S' ~9 Q/ E) F; _  ?. Pvoid Human::GetHeight()
# }2 b% f0 o9 N  `. p{# T% w9 d0 c+ ?* T. |4 k
cout<<Height;# V( ?7 l: i/ u
}
' {9 m* _( y" e# g% K0 mvoid Human::SetWeight(int y)6 V. p7 X, K: M" @/ O' @
{1 f3 E0 H1 h( e% m" M" i$ }7 I
Weight=y;: m9 V- _- d' k% p' a8 C5 |8 j7 K6 }
}
' v2 @$ h, f0 D9 f" ]) yvoid Human::GetWeight()# Z' _1 _8 s5 P+ `: ^0 x, X0 U; J0 k
{6 \+ w8 n4 s8 Q/ |
cout<<Weight;1 F3 y6 z6 A* G" ~6 F
}
) j6 V# c. a" v# z$ Bvoid main(void), E6 s( C$ Y' _) ~3 n
{- R8 |9 u- s9 T* u
   Human Lee;: [' D; c  N; [. x  W4 V! G) J0 z
   Lee.SetHeight(172);
9 ~. l0 W" f/ q( b0 z% w/ O9 R$ c6 v$ |   cout<<"Lee的身高是:";( C+ [% C1 N7 A2 ~
   Lee.GetHeight();
& r8 {' W5 S" B; c% `   cout<<endl;7 Z$ A0 ]4 }' n7 p
   Lee.SetWeight(120);
' A- k2 w" V% E   cout<<"Lee的体重是:";% O3 p, W1 O' E9 d- d6 @9 `0 ^% Y
   Lee.GetWeight();( j- {1 `. @9 I7 ]; K
   cout<<endl;
2 f3 u, r7 A1 n}: c7 }1 A# L. D
推荐第二种写法
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