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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:
) |: u- Q6 ]- q#include <iostream>  n' N4 M4 v% n( q+ y
using namespace std;
3 p  @/ ~8 p( Y" ~  Gclass Human
, P8 |3 h! L5 y% l1 ~$ E- s+ o{
9 T8 N( w8 m3 a0 g9 t6 G" tpublic:6 `0 J! \' Q) ]& ]( w% E# ^& N7 b5 z) o
void GetHeight(){cout<<Height;}# G2 U" H/ _( V7 ]
void GetWeight(){cout<<Weight;}
6 W8 [' J, A' O- y void SetHeight(int x){Height=x;}& u7 n7 P" ?7 n0 F+ J
void SetWeight(int y){Weight=y;}
. c' A  l. x* }0 `$ g# \private:
2 z7 Q3 \' I0 K# ~5 S# U int Height;7 U9 e' e' b7 u, M! F9 ?1 T) f1 s
int Weight;
- X  _$ G- A9 q0 S! c};
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* i# l. v* W2 _1 Q2 U& ^9 cvoid main(void)
  L! H- I" G, p& y/ M{
3 x, p/ n9 u9 X, K1 c$ {   Human Lee;) m; k/ W6 ?; a! b. y. z+ t
   Lee.SetHeight(172);: S0 u% q% {* R
   cout<<"Lee的身高是:";
$ K$ a5 V& b  _9 w   Lee.GetHeight();3 _  X3 t* i# D( d7 \$ F8 k
   cout<<endl;
9 g6 x3 g' b6 G/ Y   Lee.SetWeight(120);
! `* p% B/ d2 c( T0 `   cout<<"Lee的体重是:";
0 R9 R/ e. k, r- |  X* r% `   Lee.GetWeight();+ l! s4 _9 ~2 V1 u& Z
   cout<<endl;
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第二种写法:
$ x. y9 A4 Q3 c; [+ k#include <iostream>
7 u, ]2 N8 F8 J' d+ o1 n; nusing namespace std;
4 y5 m& E1 V+ j% Y9 a9 m7 m7 N+ rclass Human. \( ^2 W% P' v3 `  r$ a* F& v6 X
{) R0 r7 ?) ]; c, f
public:
4 H4 F8 e, n; q$ J: `- j  p void GetHeight();5 z9 H9 V/ T: O) y* B0 o
    void GetWeight();7 v1 N! {. o" H4 h" B9 h
void SetHeight(int x);
) V% n5 y3 @7 ^" Y& H6 V( T void SetWeight(int y);! r! {* d4 z' l5 W! }- c
private:) x) }& S8 }4 v% l: {  h
int Height;
8 s5 @) B* P; u' B* Z/ n int Weight;" L+ \; N7 j$ J: e) \4 z% B
};
2 {! S5 h( ]. @0 xvoid Human::SetHeight(int x)# J$ T7 [) L7 U% H9 n+ j+ m
{, w9 b8 Z+ ]4 k! n
Height=x;8 M& e  o( U5 j# ^
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void Human::GetHeight()
& ?! d# _) L: N. g, W{! t1 e, k; O' m0 B6 q% L5 k
cout<<Height;
( Q( T4 X) g* }: q$ @8 p4 ^}* C4 u! W# I6 J0 J( d
void Human::SetWeight(int y)! R/ z) C8 g4 q& N8 A! w- Q
{
1 r9 E" |* T" ?7 W, m Weight=y;2 V( j- R6 s, M& p9 y
}' \- Z# `) ~8 p
void Human::GetWeight()
' I& g( \" }: u3 W{6 ~& o  v2 U; P
cout<<Weight;
6 K5 N6 Y. J" ^! s, A( y* I. G2 D4 g}: q8 m" Z1 ]% Y8 Q* A& U
void main(void)8 [* f7 Y; V1 \' v- T& \
{+ r, Y. V3 j' Q* K
   Human Lee;* D5 E; n9 R+ N5 ?
   Lee.SetHeight(172);  k* C+ z! M! Y" s0 [1 }" p0 i
   cout<<"Lee的身高是:";
! k3 I, [, Q1 B   Lee.GetHeight();& x  z6 o  E+ n: @3 A; Q
   cout<<endl;3 S2 y* _" j  z* ]& i
   Lee.SetWeight(120);' x+ Y* [" x1 e9 J% ~( B; D
   cout<<"Lee的体重是:";
/ t2 Y5 p* E) u1 S+ J; |) ^0 r   Lee.GetWeight();
) v8 }1 X8 o- L$ j7 s   cout<<endl;0 T, c/ K  A  w3 b& ]* k: l
}& S& k/ i+ u+ p* V( C
推荐第二种写法
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