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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 ]8 ~. s* ?! r8 y! O
#include <iostream>
; |6 v$ X0 `1 |% k* D9 a& Wusing namespace std;
" X. s3 m4 L4 C$ I) @2 g# Eclass Human
9 F% x7 f. s; |7 D* l{
/ I( L/ T. M8 z" \public:: F- g) e# j$ v3 z& W6 s3 J$ _
void GetHeight(){cout<<Height;}; ]1 n- {% K0 U# K
void GetWeight(){cout<<Weight;}5 V; W% S6 U9 i  Q3 x/ @# w
void SetHeight(int x){Height=x;}5 N) p6 n! J& |+ v4 {, |( A0 L& `
void SetWeight(int y){Weight=y;}7 @7 w2 g( p+ ?7 @
private:
  m  b, P5 L: {: G4 w: L# Y$ P& ]) ]- z int Height;5 M/ h, N* ?% g
int Weight;5 m" H; b: z5 h& Q- r" C
};9 n! h. Q1 t- H6 }6 f, P  T4 N6 ]  R

7 W* v" I9 J" B; Q4 B3 p, J. Kvoid main(void)
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   Human Lee;
, h$ f5 I" n2 ^* W   Lee.SetHeight(172);
$ _1 A0 @) E$ H* S9 N, P8 L  M   cout<<"Lee的身高是:";
. V( B3 T% i. `6 a4 q! q" c   Lee.GetHeight();' G' x( c  a- S
   cout<<endl;! J4 y# x- ~" H5 F; I1 z& r
   Lee.SetWeight(120);3 k% E2 y  F- q) F
   cout<<"Lee的体重是:";
5 j8 o4 D, Z8 ]7 Y8 a   Lee.GetWeight();
5 f5 c6 [5 ?  V; m- C9 C   cout<<endl;
3 _9 L0 x$ ~6 {- b}
2 s5 o, T+ O9 t: Z第二种写法:+ X) b" x6 ?1 `% X- L
#include <iostream>
0 _* s: T. R* f$ N# p- ousing namespace std;
8 W3 p4 W  q! u# d5 {3 p3 rclass Human
+ \0 f6 C! [7 z! m* B4 d" L{4 W2 B2 d% Y$ w! T4 w3 m0 o
public:
* i6 R3 x5 F3 Z' ~" A void GetHeight();! B. M, V% [% ?: q6 q
    void GetWeight();
2 A& Q2 x' B1 P' H& Q void SetHeight(int x);( s7 V: `# A: i
void SetWeight(int y);) x' {: r) ?! q9 l' A2 y5 b( ~
private:
  [2 R9 x9 \2 i0 b int Height;4 w/ @) h8 T3 p, X
int Weight;
3 `# Z1 P: E; l: }};6 _: w$ j. u; E' v( y, P9 I# n+ [$ T
void Human::SetHeight(int x)
! R2 h' z& g6 h6 [3 D$ _% g- W{
& ^2 E, [6 y  q+ m Height=x;
8 a) x% ]0 O) w3 ]8 X, j; ?" T}8 v4 \5 O  w- Z5 v4 }) X4 ]( \
void Human::GetHeight()3 u: `' i; e' e
{: D# t% m8 I; O* p9 j8 M8 D; k% `
cout<<Height;8 }( h3 i6 i1 W. U  T
}4 F, }/ i' H; T& h, }+ c
void Human::SetWeight(int y)- m% z6 o1 p( ~, H6 f0 V) q0 m# p
{" }: h% h( O0 ?) H4 B. R0 G
Weight=y;) c8 Z% ]/ p( ^, u7 @
}' W* ~2 Y3 ^8 s# V
void Human::GetWeight()/ J& S% Q6 l, q4 g
{
& s# h5 [  I+ x, m cout<<Weight;; ?6 C- b8 X0 ]  z1 x% A
}
0 _9 a3 I8 a: _& b  ^" Dvoid main(void)
/ F. D+ ]) l6 a) g) X{9 M! I1 m6 i# i" E
   Human Lee;
. Z% Z' K2 t2 `% Z1 {   Lee.SetHeight(172);1 O# C. W# J/ a6 Z6 M
   cout<<"Lee的身高是:";
/ X9 U6 P, E+ k+ ?  p   Lee.GetHeight();
! N4 S0 l/ |7 m# q; O4 U( f   cout<<endl;8 Y2 T0 i' h/ p% {
   Lee.SetWeight(120);
1 P/ o  o" {5 z8 f# ?   cout<<"Lee的体重是:";: l' L' |2 c4 R% l3 v  s$ \
   Lee.GetWeight();4 a0 a3 F' p+ X1 k0 ~. B
   cout<<endl;) P' _- Y1 `% {! O: l
}
% R5 T1 C7 y! t7 E- [( s1 M推荐第二种写法# P! @: t, P7 A6 |! v0 w

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