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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 |  p7 d. C! K. y2 u
#include <iostream>! M) @  d* u' u) [2 {5 [
using namespace std;1 N! v. |1 O+ D- Z- T( w# U( R% {# r
class Human" k/ P- ?- |2 U# `$ Q/ ~0 a
{
/ ?$ o. l/ x& C9 G7 y, y2 U, jpublic:9 O5 h/ \9 J9 j- T
void GetHeight(){cout<<Height;}" [2 R" c2 z5 j
void GetWeight(){cout<<Weight;}  U. H$ Y# c3 b9 ~6 {5 O2 G
void SetHeight(int x){Height=x;}
, p4 J' Y, e, |5 ^) T1 c& } void SetWeight(int y){Weight=y;}9 n4 E% ]9 J9 C5 j
private:
! J% r7 ^, ]. _' Z# d1 O int Height;
6 a) [& Z3 W. A int Weight;
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void main(void)
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   Human Lee;$ g1 z" u6 c% c' `
   Lee.SetHeight(172);
5 `9 H% L! _9 [: ?1 P7 ^   cout<<"Lee的身高是:";( Z0 o* j$ s1 C# l( @) e0 Z
   Lee.GetHeight();( ~' J. Q+ }# a  ^! ]
   cout<<endl;; ?) W( T& m; o" \# B3 f/ Y& S
   Lee.SetWeight(120);# e( S! R) }; e4 M! l' N1 b
   cout<<"Lee的体重是:";
) Z+ S! Z) v: [$ \. k; i   Lee.GetWeight();
1 H7 Y- M& p9 d3 W   cout<<endl;
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第二种写法:
( `' Q  A/ Z# J, o4 y+ v+ }#include <iostream>  z* \0 Z& R; ^  _
using namespace std;! \( {* {5 T& @1 N
class Human1 {, K) }4 G# o& z
{
2 M6 z$ l" ]! ~+ E% gpublic:3 Q) i4 V& I2 V- ~/ h
void GetHeight();- }& c3 Y2 x: n$ s4 h- G7 k+ c8 O  |
    void GetWeight();5 y1 f0 [+ r/ o5 |
void SetHeight(int x);2 t2 @$ o* _4 `+ x
void SetWeight(int y);
, m; X0 q6 h6 D: e9 H" eprivate:* c! R6 D! z$ y9 I  p5 n
int Height;
$ O6 W" ^; L; m" e/ X. T; p# M$ ~ int Weight;8 t( Y. I/ n1 y0 F! M7 G0 p. @
};
, U" A7 [( M8 b2 ]8 B  G: Jvoid Human::SetHeight(int x)
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Height=x;' u" m( d* P: D  `4 [/ \) S
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void Human::GetHeight()9 Y" t2 t( R- o* l2 }
{+ h0 G% X% d6 b+ e2 D8 D
cout<<Height;
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void Human::SetWeight(int y)
1 F+ ^& B3 i; ^3 D' z: h% S{, O7 l. Q: J  A- {: J0 Z# w2 i3 @8 \
Weight=y;
0 G/ ^) [& r3 d/ q0 i}
8 r& D1 R1 A, ~! {( Rvoid Human::GetWeight()# P- x8 o+ U# ]5 P5 E
{
. R9 q; s1 ~3 q& A) o cout<<Weight;
- _7 N9 e/ s& x% l9 ~8 M}$ I' z% |7 Q" k, @- P* _8 K
void main(void)" h; p$ |. a8 t6 c5 J* n
{
% c" X$ |3 E2 w# Z! i+ O   Human Lee;
" o  W. c1 V+ `' {; _) _   Lee.SetHeight(172);
% n" t& W% `' ]* ]1 |   cout<<"Lee的身高是:";
5 G- T4 H( j; o! ]4 d1 u   Lee.GetHeight();5 A3 I0 P/ `, w' F' b
   cout<<endl;( X1 v8 B8 I! p$ U* \$ O  s# p: f
   Lee.SetWeight(120);4 V: @8 z/ q% U8 w/ d
   cout<<"Lee的体重是:";' r: b  K" a' ~$ y' l; V9 M8 k
   Lee.GetWeight();
: X: K# i6 F1 h5 z- q8 W( F- M6 R( X   cout<<endl;
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推荐第二种写法
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