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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:
+ i- A5 y0 ^' E/ H3 C, l% q#include <iostream>
6 x2 R& g) W* j3 @% E0 l1 `5 [using namespace std;
9 K. t: s/ \: G1 Nclass Human+ q3 L- {2 _  W% V. J
{
- _$ }" k: e' `! \0 lpublic:0 o. Z$ d9 k" I0 C/ B* M
void GetHeight(){cout<<Height;}
8 x7 ?( V3 i  J  C void GetWeight(){cout<<Weight;}
7 |7 O6 L3 u" O3 Q$ W void SetHeight(int x){Height=x;}4 s1 P0 W, ~, b  W6 I
void SetWeight(int y){Weight=y;}' Y! T& e( z6 |1 a8 ^2 k5 V
private:
( }6 _$ Q6 s8 t3 r4 m int Height;/ T- t) {- x/ h4 X
int Weight;
% h, \: A- r. c& o};4 S0 k0 a" ]6 U0 \- m# x

/ u. n* B% k. A8 [void main(void); |  b& P; d( |! w. h3 M
{
, @; f  W; X) o- A   Human Lee;
; C/ U8 ^4 v' _, u   Lee.SetHeight(172);
: d( A4 @3 h1 v  i, X   cout<<"Lee的身高是:";
( @' V- \; B/ O   Lee.GetHeight();
5 @7 |1 G% j2 `; D6 D; \' E% Y   cout<<endl;
* ?( f# f+ [& j" r   Lee.SetWeight(120);5 S  _$ n1 ]$ e5 U* P
   cout<<"Lee的体重是:";+ Q5 Q  s2 u. p9 V: F: w
   Lee.GetWeight();; I( b% U4 X2 d/ V$ i3 R7 m
   cout<<endl;4 Z- L% M0 x" W: Q" Q5 U
}
3 r3 c) }# Q2 s% m/ {5 V第二种写法:% L3 [0 [& _: w
#include <iostream>  I' f7 s6 n) r4 p" z
using namespace std;
, E9 Z+ ~0 }& r: }class Human, Z( Z3 L( v; k2 w" {: w
{
/ b. G. R' \/ q2 z; a- e* P# [% `public:5 c& e' v2 i( b2 L% x. \8 ]" e) j- x
void GetHeight();, F8 J1 A( A" |8 P8 C" T. ~
    void GetWeight();
2 d' ^( ?8 Y+ E5 r4 K void SetHeight(int x);
, L: R" I( r1 P1 u( L void SetWeight(int y);7 V* r0 v8 h  C' B% h- D, h$ d& u
private:9 e$ |4 J# @" J1 y8 O" |7 d3 i
int Height;
9 c# d" ]+ @6 s( n  H int Weight;
! U) z$ X) ~2 y0 j6 |};6 o* `2 Y6 {  h2 j" l
void Human::SetHeight(int x)
2 v0 t9 V% y' W9 n5 B) r{
" |7 s8 k3 Y8 O Height=x;
: o4 E! G, W4 T, |  F7 [  M& a, W5 T: M}2 m0 R8 o0 _6 ~; \
void Human::GetHeight(); O3 a$ L5 y3 F: f+ s8 R0 o. o1 j# C- Y
{
; y* q, g0 Q3 M% ^9 w4 d cout<<Height;
  o9 |, f! x) _, P2 Q& c}3 c* ?3 T. y) @3 n
void Human::SetWeight(int y)5 r3 [7 j7 m7 B# Q$ o
{
  Y! b: Y; i- s& f8 ^ Weight=y;( j: {5 w# x( l; X& f& r, {
}8 {& w) \6 |/ n
void Human::GetWeight(); e" S2 V9 ?$ m9 n1 o  Z9 Y
{+ E' [4 c. b/ n) |# U4 [
cout<<Weight;% Y) e% p0 v1 f9 j( G9 H7 D
}! m6 G  u5 m: c* r9 d0 W+ s
void main(void)( Z: R& f' \( o- Q
{  A3 w- p* c0 D! @4 c4 u
   Human Lee;6 t3 n+ A4 I0 @3 Q' r
   Lee.SetHeight(172);0 p3 w) S1 n1 `( G* V( C
   cout<<"Lee的身高是:";9 b6 t" {  y7 O( h$ K/ W
   Lee.GetHeight();
+ C8 A+ w& z( A* l  k8 O9 E6 b3 h" q   cout<<endl;) R. l/ C, R! s( Y8 t. I! A2 X- Q
   Lee.SetWeight(120);
( u0 n, c4 G# w   cout<<"Lee的体重是:";
+ f& G4 E$ I9 Z: _9 w6 ^1 A4 B   Lee.GetWeight();$ {4 t5 N! |2 ~$ d; o1 v2 w
   cout<<endl;$ ]3 w+ o# @0 t0 j1 @
}
; `3 B% B; ?: M9 b, u% C& ]推荐第二种写法
5 i1 [2 @6 ?: c- I3 \  {
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