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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:0 y! S* j: D& j# \; i6 p0 C
#include <iostream>$ b+ ^7 D- H9 D$ p3 C& F: B$ K
using namespace std;
0 @& N& z7 h1 W+ Gclass Human7 v6 `5 P: s) f0 R' P
{
3 Z( o- [' D) w0 s5 H9 ppublic:
- a7 J) U, Y, L) h4 t5 w. { void GetHeight(){cout<<Height;}
9 w5 y" Z4 |) w( ?# E. ] void GetWeight(){cout<<Weight;}
/ [. B& O" I$ K5 W, I& d/ s void SetHeight(int x){Height=x;}; q8 k% S/ G; `) S
void SetWeight(int y){Weight=y;}
3 Y. M6 D! @# B4 k' c5 b) @% @private:
- E5 U( c" F2 Q* J int Height;
/ V/ E1 a( `& M1 ? int Weight;$ D; d$ c8 G7 g% ~
};
+ U/ R1 ]" q( Q3 g- d/ |4 w+ Q$ A- j! j! L7 a. o/ A! I+ j
void main(void)) I+ `7 o0 {8 Z1 B" m
{
$ z! t: m0 Y$ U+ t  g* w: w   Human Lee;
) M0 H" s% M& @5 L; O0 A0 F   Lee.SetHeight(172);" N9 s( U5 @" J+ B
   cout<<"Lee的身高是:";( B2 u. O7 T8 T8 Q
   Lee.GetHeight();& m: g* F" q/ j& J
   cout<<endl;
2 l) }/ S4 a, B   Lee.SetWeight(120);
, @3 p1 n: v; B) }# Z   cout<<"Lee的体重是:";, N, v1 |5 K6 F
   Lee.GetWeight();
1 g$ _; J$ ]0 o7 P1 \$ J   cout<<endl;
  A# w* U$ H! {/ J4 L% E* f& X}
* z, R9 D+ B& z第二种写法:- o. B3 s% C0 C  P8 l; `
#include <iostream>. t/ u' B$ s+ n$ y% w' ]6 H
using namespace std;
5 V% |' m( v- C+ nclass Human
; w# p% j% S7 C( m{- X7 ~; @* ]  k3 V
public:1 c9 x: S' Q& _5 `# p, z- e
void GetHeight();
, Q, \+ |. J8 w/ G3 |+ |4 g% m    void GetWeight();
! r; U/ y% W! X9 n! ?4 r void SetHeight(int x);! H5 G' g: S5 F& _3 F
void SetWeight(int y);
2 k( p- n1 c: G8 W7 i& C/ W1 Gprivate:
4 R6 N0 [7 O. P5 x6 x int Height;
! o& B8 S; k5 Y6 ^9 J int Weight;+ \" P- a8 C' o' M, R0 \8 T
};8 z) \$ [- @/ J6 }
void Human::SetHeight(int x)- Q1 S: T4 a' M$ l1 u7 u
{$ R# K: u# i; c4 H3 x% [0 ~0 i
Height=x;
5 n2 b- o7 i7 i}
7 K8 d4 S2 `$ ^2 t! i. m% cvoid Human::GetHeight(), c7 o, E; Z4 C. B& R4 _2 d+ X: }
{4 H( }' R8 D: n2 @2 W
cout<<Height;- R0 z) X! ?3 g' x
}
$ I/ ~* D. m4 `void Human::SetWeight(int y)
) ~7 }" L6 D0 r& D* N{
- n( o% l$ W7 i9 r Weight=y;
5 R5 }5 a0 q! Y( p0 U* ^+ X) s; V1 w}
: @% f- k" ?  T# f- Z7 e1 \void Human::GetWeight()
* x8 [5 u) ?! W- S, f{) Q$ P( t0 i1 k4 x  \8 B6 O
cout<<Weight;
+ G5 r4 {, Q- {: `7 h  ~4 T/ |6 B}. K# c/ F! P& Z! M
void main(void)& [% s. u% D* ]
{
. M1 C. I+ V- S, x" Z8 B* g   Human Lee;
1 K- x7 d7 x  m5 A8 m9 e   Lee.SetHeight(172);9 \( O& L* W; I) S8 o) U$ i( W
   cout<<"Lee的身高是:";
7 h& x+ m$ o2 G. L   Lee.GetHeight();
% o7 L* \! g0 Z& l0 y- V   cout<<endl;
5 t1 A0 ]' t; c9 P+ |. f+ p   Lee.SetWeight(120);# |, q; R+ Q% S0 ^4 A0 F
   cout<<"Lee的体重是:";! [& {3 U+ x! o
   Lee.GetWeight();0 T. c0 I, W. Z$ g' {. m* I
   cout<<endl;+ O# a% j! Y3 ]2 V
}
* O6 D, E& g/ J: ?% m4 \  t% M( I推荐第二种写法6 h# a5 C! _  I) H9 [7 N' w+ Z. J
" M( T+ \$ S" L) @3 Q8 `) @

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