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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:
; j( a  J% q; D& i#include <iostream>. n! ?3 S* O/ h+ ?, c; I
using namespace std;
- w" L- I( u8 ~class Human& q5 b# I% N8 p" N7 _6 t
{2 V9 A6 M& S: g! _
public:$ e" L$ r. w5 L. W0 A
void GetHeight(){cout<<Height;}
0 E" H' @$ J' k; ], [  ?' s2 M void GetWeight(){cout<<Weight;}0 ]+ ?4 e+ y5 z+ {0 f. r7 d
void SetHeight(int x){Height=x;}2 s- Q5 ]( v+ {0 M, ?
void SetWeight(int y){Weight=y;}* R* K3 h, A8 F
private:
: N' I- O! O+ U- n. E7 n int Height;$ `* Y/ N$ x* `% Z" P5 Y; T
int Weight;& C1 w; }6 E, I0 u* o6 {' b
};
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void main(void). x1 L6 \6 {% W1 W! a
{
. g7 Z0 @1 h. f4 v5 @6 v   Human Lee;  P9 [: |" f" P% E' N0 A, g
   Lee.SetHeight(172);- u! c: j2 A- P8 F4 r% B1 Q
   cout<<"Lee的身高是:";
9 q, l6 c( n6 t   Lee.GetHeight();: ]1 X( Z( t4 D5 f' O. |
   cout<<endl;$ @5 K% d& Q  p1 k/ p) l  }; o9 r
   Lee.SetWeight(120);
" R$ s$ s7 j  a7 m/ `   cout<<"Lee的体重是:";6 E3 e0 }/ o4 q' r( {0 [/ m! i& X
   Lee.GetWeight();9 p7 A0 Z+ a3 E
   cout<<endl;
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第二种写法:
% f% g0 R, d* ~/ ~7 X1 @#include <iostream>8 i0 w( B: ?$ A% W! z8 ^
using namespace std;
6 j7 x* t, f/ q; }5 J+ mclass Human0 I& k9 f$ X, X! q
{# ^9 E8 F* @+ T' d+ ?; W6 z
public:
* J4 ~0 E% @6 M; @ void GetHeight();
; ^4 p0 g! w$ K( z- o1 W    void GetWeight();6 O* ]/ r: q, O$ [9 p. c( l' r
void SetHeight(int x);
7 E0 e7 }' U0 P/ y4 U8 E+ S void SetWeight(int y);5 O# }/ W, A4 Z8 G% D
private:* ^1 c& W# E& D& {2 E0 {8 }
int Height;
' o6 C. h! o+ ~, h! m1 w5 h) N int Weight;
, N0 a1 b/ c. A  |0 L9 }};
8 k# y7 n. _4 I# dvoid Human::SetHeight(int x)/ f! p6 b# d  C8 S
{- R  P2 d+ D( X- f2 f
Height=x;
4 O8 |" `: u: E6 r8 X% P}
- X, O! z: d& \+ f7 Gvoid Human::GetHeight()  c3 }) O: l: |
{
5 O! L$ `( [" w4 u, K& J) c cout<<Height;4 K7 w7 I: F' f. F/ A+ ~& g
}  k9 O, M* R" h, f& I
void Human::SetWeight(int y)4 k: `8 z) t' O8 }* j
{3 V$ R8 `) `8 F5 {* |1 |) V
Weight=y;
0 C2 |8 C9 b4 h; b6 ?/ z0 }8 A( |: J}
7 e3 ^" M" }( p: r$ Jvoid Human::GetWeight()" r' g8 t  q' Z+ [. c6 x# h
{
+ G: p  O1 l% ?( n' B( ]) m cout<<Weight;. |( `- W/ j2 C" g1 I
}# N% I+ {0 b0 u( f( ~
void main(void)
( q2 @" Z, R# h* D1 Q0 K. i{
3 O: A& [9 v) V5 S   Human Lee;/ l# x6 t- d! A8 r2 H
   Lee.SetHeight(172);
) K$ F5 t. B- H. ]+ ~   cout<<"Lee的身高是:";
* D$ U& V9 v( c: o& v9 X, r   Lee.GetHeight();
, l  A0 M3 X: c5 v3 J: e. @: s   cout<<endl;8 d3 n: r& ^; m: C' ~( ?3 U
   Lee.SetWeight(120);
% b* K2 Z# S8 }; H1 q   cout<<"Lee的体重是:";
2 K( Z2 z7 \# h% d   Lee.GetWeight();# v- @9 o! l0 L+ Q" |, _9 D. s) g
   cout<<endl;
/ W- O7 ^# n9 }" F4 q" w}* m5 n& p, l% e  z5 ^/ n) ?
推荐第二种写法
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