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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:
  ?5 \+ l/ H  M2 Z1 u# `#include <iostream>
7 h# @: S' ~: i  }/ Lusing namespace std;
' b/ w; `6 i2 Z+ I& v) Iclass Human
: L% r4 \1 D$ J7 V# B{
- A1 S9 q  a- s: M' f% f. J! cpublic:
" {. S; Y% K" |  I  G* b void GetHeight(){cout<<Height;}6 |( r1 G) G% {- l7 Q, ?
void GetWeight(){cout<<Weight;}
3 z) \+ N1 w. `# ^ void SetHeight(int x){Height=x;}
; c$ r/ b* t6 D$ `* ]5 _/ ` void SetWeight(int y){Weight=y;}
7 g5 e: a' F8 O1 F" {private:
' k/ {2 O) f9 Q' Z: } int Height;& k- E3 ]' v% E. |. h: U
int Weight;
2 x- k: w# n& M};7 O, `( q5 W) }5 S

4 Z$ |( m* W# ~4 Y1 Nvoid main(void)+ T0 d: V% |/ r; s. m- P0 H1 p
{5 U3 ]4 s! L  S" y: j" b
   Human Lee;, W& K. m4 n! M4 U5 C, A7 G
   Lee.SetHeight(172);
: |0 {$ l' |' C$ Y  m* E# U   cout<<"Lee的身高是:";) @/ O! T( G; T. o
   Lee.GetHeight();/ r5 o. ]4 K! s( `0 p5 [2 H
   cout<<endl;
' R5 k( ~. s$ k# }- F* y( x3 @   Lee.SetWeight(120);
6 K2 z8 Y! V0 g0 Y% J# g( l  v  U   cout<<"Lee的体重是:";' ?4 x6 N& A/ r- t2 e5 d6 k: u. I
   Lee.GetWeight();
6 f# a, v. C+ o. v# ]  s. z+ n   cout<<endl;- b% @" n( D. e0 s! b  |- `
}
9 Z  q0 |0 k2 ]8 k- v第二种写法:
3 c) B6 \* q) w/ U1 I# N! ]#include <iostream>
  s1 r- n. M% yusing namespace std;
# C6 Z+ I. A2 a, b, Lclass Human
; {( n# |' Z4 T/ o{
9 u( A  b9 [8 Dpublic:( y: o. H$ ]; L+ ]
void GetHeight();
3 [. c3 J/ i) c) S* r! X. ?2 j    void GetWeight();; M/ ?7 X" n1 }9 d+ p: U' D
void SetHeight(int x);. Y0 n3 V4 ?9 I; T" u; s" `
void SetWeight(int y);+ _6 [4 Y- k* O: `* L
private:1 N5 C3 X. o2 h# A
int Height;) U4 P1 J* A; N% E4 I3 p0 \
int Weight;
) x0 ?# V8 ~+ ?* B) ]8 O+ q7 S" C};4 A! i8 i" v: K
void Human::SetHeight(int x)
$ O) m2 b6 K/ a, j1 J5 }) A{# K# ^0 Z2 w6 m0 M0 t) G1 M; M
Height=x;
6 V# }) y( d1 E0 {/ r}
; L; i- w, }7 ?2 [- t& J( Fvoid Human::GetHeight()
& P9 N! A7 P2 K# E  o{
6 q) h9 ]0 k2 L/ c6 H) y0 x8 H cout<<Height;6 [8 ^5 V3 N) g; H  \! W: D: P1 f2 ^0 v
}, _; G! Q3 x  T) O( L
void Human::SetWeight(int y)
) F# m0 {/ n$ G1 ~$ A{  O' {$ L1 }. }
Weight=y;
# W6 S; h* M  {- B$ I}
. x5 {6 V" J0 B, mvoid Human::GetWeight()
; R: G3 x4 s8 q7 Q2 z8 q{- A/ }$ S! `/ x6 \) G; n& D* I
cout<<Weight;7 y! T1 C, |$ u- a1 B
}
+ N! H2 Q2 ?: h; e/ s9 _) {" v8 }$ mvoid main(void)% V8 F# P2 L0 G3 e: A% N
{4 |+ A; U+ f0 S+ m
   Human Lee;! ^' l0 t8 J. `/ A
   Lee.SetHeight(172);0 r0 E# V" o! N$ ]
   cout<<"Lee的身高是:";
1 @% N. f8 f/ b% l   Lee.GetHeight();
  j6 M& W) A3 N   cout<<endl;9 \9 s0 A/ {4 d5 V# M, S7 @
   Lee.SetWeight(120);
  x$ F7 W! Q3 x   cout<<"Lee的体重是:";! V  ~  H  J- t& a' W& |! _# ^) G
   Lee.GetWeight();
$ J$ l  o( X+ ~5 j" H1 |" j" M  @   cout<<endl;
3 n1 Z$ u8 D0 B5 A" N}2 X  f0 o( m& I$ y3 g" l- }
推荐第二种写法& Y" Q, t7 [% a3 o" ?* J1 W$ C
0 l# E3 [% V2 w# g2 M9 C6 y

1 L+ U% J7 a+ j0 E0 [5 ]8 Q, Q
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