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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:
/ n4 }; W8 j+ s; o* P& E#include <iostream>
4 f" @' N. S& }6 l% A( G% tusing namespace std;8 w: i2 u+ k' V, K
class Human
. }9 m/ U" y, e- i) J# c" V( i{
$ J; T- W' y% K9 N+ Fpublic:' o1 J0 ^. e7 P1 F! c: s
void GetHeight(){cout<<Height;}/ R4 Z; |) Y0 {9 L( M
void GetWeight(){cout<<Weight;}+ q8 [, ]# u% J. j' x
void SetHeight(int x){Height=x;}( G) e4 |: k4 a' ^( j- i* {; G
void SetWeight(int y){Weight=y;}6 d5 S0 o& R$ |  e# P; C
private:
+ m* S) f! M; M! J0 L+ C int Height;
  A3 f" i3 t6 n& y' k int Weight;
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$ G4 p& I6 G1 C' f3 V: `" y3 ?  F
void main(void)
  p* ~2 @& y) S2 ^5 p{
" ]' r' k" D. f   Human Lee;
0 C4 I. s- n( A, M8 E   Lee.SetHeight(172);; N# }# X, Q4 I0 ]$ e8 ]. [
   cout<<"Lee的身高是:";8 F3 o8 }7 b# v% K- u" D* [0 g
   Lee.GetHeight();3 x1 G% J" ?8 f
   cout<<endl;  P# O+ ~# K9 o
   Lee.SetWeight(120);
7 G  N$ e# \2 b7 b; \" D/ X   cout<<"Lee的体重是:";
. \! a  c# Y5 X4 k  z   Lee.GetWeight();2 K4 A' f* s6 F5 W
   cout<<endl;
3 z% o+ g# O5 z, A}
; V! {6 e. y% i8 M第二种写法:
" w4 y$ K: s+ m9 ^8 X#include <iostream>1 V* f. G; v3 }5 o: p( H
using namespace std;
% o; N5 _$ H$ X% R4 _class Human9 x) v1 {: I* P6 w. w
{: \" N" y8 q/ [0 d* O  ^
public:
1 \+ X: P) i8 n void GetHeight();
" f. S3 ]( E* }; S1 ~. i# R8 m2 H    void GetWeight();. z& V% I6 a: P
void SetHeight(int x);' H) {& v7 i$ f5 N8 D8 x& K
void SetWeight(int y);/ h) K. q+ ~! G$ s7 a! r
private:
  E. ?9 n. x, y  w$ p" u! X1 y" { int Height;/ n6 D* }- S+ j4 D4 \7 l7 Q
int Weight;
. V! x5 v* b: f% f6 i};4 u# Z/ A0 t, r0 ?
void Human::SetHeight(int x)
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Height=x;
* e+ ]3 k/ o5 m( s" A, w}
' \# v+ L$ [7 z) evoid Human::GetHeight()1 ]1 h8 e. D( n' d
{
( f9 t8 Z1 x8 `* [ cout<<Height;
4 F5 G8 ]; e+ r) C1 t$ W}, i* h! ~6 r* r
void Human::SetWeight(int y)
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Weight=y;
  q6 ^6 e6 I- x5 D: t) [) t- Q  W}3 c1 m- Q3 H1 i% p+ Z9 H4 n" l  }
void Human::GetWeight()% H! h8 C0 ~0 S, M/ J, A) D0 M
{
' H+ T( o! m! |! _" P cout<<Weight;
( t! b: s7 ^8 [3 W8 h: J; V}/ d+ p4 d, U+ V3 s- I1 [. n
void main(void)
( ]' b% a& R: F. W. c) p# q{- j9 r" F0 L7 {* F
   Human Lee;
: ^2 [; a& B  e/ y! q; q& U9 S+ ^   Lee.SetHeight(172);$ X- T2 \6 B: l. o+ Q$ _1 k3 w
   cout<<"Lee的身高是:";" }% l3 w. O0 h; S5 ?1 Z4 g9 Z
   Lee.GetHeight();  b! Q5 R7 F/ J; {
   cout<<endl;5 c9 w. S" L2 S8 H
   Lee.SetWeight(120);- ?: f) [) n/ f# L  M; @; G& v
   cout<<"Lee的体重是:";% D$ g" Y( ~+ r+ z9 K8 Y
   Lee.GetWeight();
0 C6 W# x: @1 b, O6 R7 ?) a9 N; e   cout<<endl;
" ]3 B6 J2 N6 X& v}
% h5 k9 U6 M/ b推荐第二种写法+ G5 q& P- s5 I) V6 t
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