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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:3 h; D) V2 C6 i+ m1 c1 B' S
#include <iostream>
) ~6 D1 d! c% s6 R/ qusing namespace std;
+ b0 f1 \- w- D! K8 q% Dclass Human
5 l% }8 D+ m9 E5 u1 P{; W6 U' j* a; V  b- ]8 f
public:
3 j3 J# t! y# u+ o# @* R void GetHeight(){cout<<Height;}
2 x) r; c# o; N" z9 K void GetWeight(){cout<<Weight;}/ F! B* X  K9 _2 }! Q4 C2 G) ^/ Y; I3 A
void SetHeight(int x){Height=x;}+ N+ [3 z5 C7 F
void SetWeight(int y){Weight=y;}" D* T( m0 K- W8 i
private:5 z/ t8 F/ x4 u3 \* w
int Height;
; |" C1 ~9 ^. ?% {3 v int Weight;0 c" |. a% j1 l. V8 E' }% I! d
};$ k0 O9 P6 B4 {' t( I/ y- `3 z

6 P3 P/ V8 |: {$ kvoid main(void)
, v  b8 p" K, T. a1 @4 ~6 Q{- j# Q8 G2 ~$ y+ I7 d+ ~
   Human Lee;
2 k* \& E$ z7 z   Lee.SetHeight(172);
  a$ I4 Z/ \, i4 s( f) s" p  G   cout<<"Lee的身高是:";
/ r, \( L1 U7 b, R8 J) U( A   Lee.GetHeight();
2 e4 Q! c) b8 ]! w6 k6 Z   cout<<endl;2 v: D6 B1 D- O! Y8 z
   Lee.SetWeight(120);8 Z, P; L. @% W! U
   cout<<"Lee的体重是:";5 g+ k% j7 K- q3 B) B, X
   Lee.GetWeight();, T7 c% m. L9 T+ O5 C  l7 K5 Z* |
   cout<<endl;( a2 H  e8 W% f: P! \. U) ^) g7 B
}) x1 I0 f: n7 W+ D4 l$ J$ s
第二种写法:
5 p9 `* d7 |  Q% |" X' g# W#include <iostream>
6 {9 O: x3 D& t. nusing namespace std;7 R; x3 O( g' o# [8 w
class Human
! X8 F2 d+ q2 _7 |9 D{" X5 h, V# w+ u  Q% K5 m5 U  D
public:/ v# s6 T. t8 d1 [% N
void GetHeight();
- j9 H% I1 ^, z    void GetWeight();1 e6 [- L- E3 Q8 @1 f7 a
void SetHeight(int x);+ B, p+ d4 m  w& C0 n
void SetWeight(int y);. e9 w5 i) j7 G. l% M: \5 p/ N
private:
+ {0 S; W+ K% r; _# c! d" E int Height;: ~' O3 @& r! R/ h6 m
int Weight;/ `4 v* H  Y2 [3 X% ~% Y' c' F* Z
};
2 s1 e* K2 j+ x. yvoid Human::SetHeight(int x): p$ k! V8 W' D2 W
{
+ n" f% f7 z, g9 { Height=x;% M2 Z0 f. Z) c# o3 a1 w, f
}
4 s5 t; H7 P; b2 {* d: {# wvoid Human::GetHeight()
! X4 ]  D9 H  t: y0 R% \{2 ^5 d" B' Y3 P" y
cout<<Height;
: c) t6 c6 Y  G+ z; q- s}
5 V% j9 ^# X7 L/ Vvoid Human::SetWeight(int y)
; x0 e9 `1 B6 G{
: i! T: s% D% T% i- \ Weight=y;
8 O* j! K* U! J$ V% h6 N" h) q}
7 ~# c- v+ W& Z8 R; V+ i5 cvoid Human::GetWeight()% C- ^+ o& Y% a8 Z& N: k
{# U! \4 w! a8 t  O! _
cout<<Weight;  x5 N) M4 @  Q( k0 [$ j
}
4 O& }5 S; y1 Y5 Y1 {3 Tvoid main(void). o- |5 l. t7 ]4 N7 w: ?* A
{9 U" J" K$ |' [+ V- K
   Human Lee;( A) q- s4 `! P' ^7 T7 _
   Lee.SetHeight(172);( ?) U2 Z! O$ Q
   cout<<"Lee的身高是:";
3 ~' f+ H' h2 _/ N' k0 |- f% P% v   Lee.GetHeight();
: M% u  B( o( E( N, E# C3 n   cout<<endl;" j6 O: l2 d0 o7 y* f  S9 x
   Lee.SetWeight(120);
/ E5 l$ x9 O, ]) H: }* x$ w0 w6 V/ Y   cout<<"Lee的体重是:";$ i, z3 h+ G7 c8 t
   Lee.GetWeight();
" n* a  @. @' G/ a) d/ L   cout<<endl;' `$ m4 m  I; w4 J
}
* Q0 H$ ]9 z. V4 R) Z$ J6 R8 n推荐第二种写法8 u. U/ B6 F" j. f; l3 e2 T
( ?  r) n% ~% G8 S7 d
" E$ f2 E0 h5 _0 K
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