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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:; m- f; {6 c% V9 F% H. p0 y& m( ^
#include <iostream>- O% d2 {. `. b/ m: {: g: x5 W
using namespace std;
! L. M6 {: ]. j5 nclass Human$ ~$ m) K; ^( T  V! D: Q! `$ P
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public:$ I# p# l% w0 _4 c( Q
void GetHeight(){cout<<Height;}
1 v2 }2 M7 M6 Z' t1 v8 R void GetWeight(){cout<<Weight;}' [$ ^5 G/ V" P6 t. u
void SetHeight(int x){Height=x;}
+ \' c0 s  q$ U" T) [" \: O: n void SetWeight(int y){Weight=y;}
# J$ s7 D+ ?# k$ c+ Q6 B1 g- bprivate:4 K; O: P3 r6 P+ g
int Height;" v/ W$ f4 k, B1 [3 e7 ?. _
int Weight;
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void main(void)! f) q& u% Z8 }8 L4 F0 X; p
{% D) ?2 U) k6 o2 x
   Human Lee;8 q) b9 e/ J/ w9 w
   Lee.SetHeight(172);
8 [$ j8 E$ y0 ^; |/ H; I% z0 V+ a   cout<<"Lee的身高是:";7 f; s2 E) J. R1 p* _
   Lee.GetHeight();
( a3 G7 `. V8 x+ }   cout<<endl;# N2 {3 A. P5 l6 g0 Q
   Lee.SetWeight(120);9 ~, P: K* t& _4 n! W  }. T
   cout<<"Lee的体重是:";
" m0 q- T; j' \4 w% b0 R& w/ z  V8 Q   Lee.GetWeight();
& W3 h: ?% R- ^+ w6 W3 P   cout<<endl;$ y9 l* ]$ _0 s" j  ^
}
0 d# @; f' W# J7 e% Y4 P% _( w! m6 o- |第二种写法:
0 }- c7 ]; K$ \. {3 Y- H#include <iostream>0 N) k; \# W# p8 K8 S8 W
using namespace std;, M& P% Z) m) b2 r6 |
class Human
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public:" i$ ^) d' O' [2 T
void GetHeight();- g. e0 Q6 R: S0 W) r3 Q
    void GetWeight();/ A4 D. ]3 M; {# Y# k0 [8 t
void SetHeight(int x);$ }  a+ C! W' h. n$ V
void SetWeight(int y);
1 k( Z$ C' Q$ o& F; p* rprivate:
* x/ O! R% A7 }2 O int Height;
: M0 `$ h6 v7 O5 N int Weight;
7 Z8 _: f. a  Y. a) w6 ^6 G3 ?};0 c, n* |. e2 _. }) \
void Human::SetHeight(int x)
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Height=x;
: v# I% b; k  q5 V. Y}
- U. Y! ~" G4 e6 z+ Cvoid Human::GetHeight()
. V$ h; j1 s: u  }; D: |; ?{$ Z5 v6 ~5 M4 m$ n+ \
cout<<Height;$ N$ y# D0 o0 N
}
$ D9 G5 _+ }9 Z' tvoid Human::SetWeight(int y)+ `; n6 ]6 u# V* W$ b! V
{7 r: E. |' l& n8 c2 T
Weight=y;
* f+ G' A8 k6 j1 f9 a1 D) A: S" @}
/ e$ q0 I- Y; _0 u0 tvoid Human::GetWeight()" [" s; n* l  O" q
{8 {/ T, ^# w- c0 y  u4 L
cout<<Weight;3 O& z3 ~9 D. v( ~+ L* a( K
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void main(void)
8 H7 ]5 f4 ]( P1 z+ a8 r{
9 o# |5 _7 i- H* q# j0 [   Human Lee;( q, C# Y# C/ Z' N1 q3 W' \+ t
   Lee.SetHeight(172);& o: }" d* w1 O* T* X
   cout<<"Lee的身高是:";
8 Y: B% r+ \1 [' }+ ?* h* Z7 o( @5 u   Lee.GetHeight();$ N7 A2 S# m. P5 o/ [
   cout<<endl;% v$ Q0 y1 G- S$ V* q
   Lee.SetWeight(120);
+ c& A; u# o' {7 |; e% ?0 a$ ]1 H   cout<<"Lee的体重是:";7 ]$ Z9 h( s9 F: `
   Lee.GetWeight();2 U! H9 `9 U( c& z; R8 M+ z7 o
   cout<<endl;
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" i, I/ x2 F& U% X+ Y: e' H; H2 I推荐第二种写法: A- I$ F! D( t9 p0 d6 j/ x1 z5 E
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