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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:
  _3 |( Y- [+ I: @( @5 w* X#include <iostream>3 y1 S' d' |" V; K6 `, W
using namespace std;
6 Y! U1 `4 B# s+ Xclass Human* E  @8 k! C; ]; e
{& e) B* \0 e. J* }
public:
& f7 d6 b$ f0 A7 L void GetHeight(){cout<<Height;}' z$ x7 v3 {! e& D$ a$ z+ N
void GetWeight(){cout<<Weight;}
# s& U/ M* F- V void SetHeight(int x){Height=x;}
$ `! x, ^/ E5 m. C  h' a7 w3 S4 y# F void SetWeight(int y){Weight=y;}
: _1 u6 U/ _5 h% i/ X  U* h4 {private:% m- E# k9 X7 J9 P, m. h$ D5 a
int Height;0 @% A, \" w: P; Y% A" r
int Weight;
! N8 o' A+ S" v};
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void main(void)
/ g2 b% A/ ]  m{# R! |, h6 G+ p7 o0 x, u9 _
   Human Lee;
6 b5 w3 E8 H2 E/ t8 n/ E   Lee.SetHeight(172);
# p. V  I* Z8 F, S2 N   cout<<"Lee的身高是:";
. C& s9 t& s5 l   Lee.GetHeight();
7 x0 f1 `9 m( V. z   cout<<endl;
9 h, Z- A  y5 s* k/ Q# C; J   Lee.SetWeight(120);- p: m- p9 `$ e6 y8 K
   cout<<"Lee的体重是:";
/ ?; ]& e/ N+ b5 q! I/ L+ i8 q! f6 L   Lee.GetWeight();
) y) `- g" r2 h# o+ t9 l   cout<<endl;
* t2 o3 W& @# g1 e# v}
2 z' ^, W7 f6 O' ?: g1 Y' G/ c第二种写法:
! X& c( f  T7 k6 y6 D5 M. V2 D1 y. b#include <iostream>
+ [5 p- v0 J& ~1 n% {, uusing namespace std;& N+ G; @/ [( ^9 y
class Human( {0 ~' X! ?  v9 j8 ]
{: U- i' l7 u& B# c- g
public:! K; p- ~6 p8 h( U
void GetHeight();% n* Q5 p1 Q  p) h0 w& H3 @
    void GetWeight();: K/ v6 Q* |3 V0 ]( ?5 q2 R
void SetHeight(int x);
$ C8 k& y& S, k& z1 `: V2 h void SetWeight(int y);: e2 a# G' O9 x
private:
7 [# Z8 M0 Y/ A" z" Y( G8 Z6 a int Height;
! Z3 N7 g: Z  ^# C int Weight;
4 m) W4 z8 A, N: l0 c3 o};  C/ Y) I" @9 k- N1 W. k
void Human::SetHeight(int x)& S8 u' s9 Q4 z0 K. C! L+ G: N# r
{- y8 Y4 E- u8 V$ p9 M1 Y/ r3 r& n+ O
Height=x;! |$ |: f4 K8 t1 n
}
2 }: |+ S" F! @, M9 Z# Evoid Human::GetHeight()
6 ]+ l8 R9 N5 P; P{7 ]4 l0 M4 |: ]
cout<<Height;+ s& }8 E4 Q' d5 B" t8 F; h
}
, O5 B+ {& {3 m4 O' bvoid Human::SetWeight(int y)& c; Y* _1 R0 j9 s* w! ^6 B
{
/ Z$ Z  t4 n" u$ x9 b6 p1 D) t Weight=y;; f1 f* y# I9 h$ X
}* M) s1 P! l/ c% F
void Human::GetWeight()( Z8 t9 N; A2 N) x1 S
{
/ W2 L% }3 C9 e6 {1 `0 | cout<<Weight;
& Y6 [* D$ Y: Z}) ^3 E) L( {9 ]' M
void main(void)5 Y. l9 U5 M) ~; j& R- ^6 b7 j  D
{, i; h! R- l1 C1 r1 k& s1 d% X  Z, X& s
   Human Lee;
: `. N+ ^9 O, k! t% x( z1 e* H& |   Lee.SetHeight(172);0 y: Y9 G) Q2 v( o6 A0 F" w0 p6 D
   cout<<"Lee的身高是:";
& K) k4 a1 `. n5 z; C3 c   Lee.GetHeight();
0 X/ ~7 Q# H9 c2 v0 ?# p8 ?   cout<<endl;
5 K+ d. W2 {3 L; a4 O  Q   Lee.SetWeight(120);2 i% O" Q9 ~! d8 |! D. {
   cout<<"Lee的体重是:";$ e3 r2 {! e+ A: \
   Lee.GetWeight();
6 w! P% p4 A3 |, {   cout<<endl;; D, y' s* x) h; `
}
7 E2 ?' c) P4 [1 q推荐第二种写法* B( b; u- V4 m# w; S: s

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