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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:7 y! n' @6 b1 ~' z8 N& U
#include <iostream>
- b7 ^5 Q& t8 C: E# R9 }using namespace std;
# P/ D5 C  p; U) V* |6 Dclass Human
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public:! ]4 N* R7 l, Y" P8 y' U
void GetHeight(){cout<<Height;}" S( f: ]" I2 H4 d4 L
void GetWeight(){cout<<Weight;}0 Y% z) R0 x+ v6 X  @
void SetHeight(int x){Height=x;}& @6 S& B8 a9 x/ W8 ]2 g
void SetWeight(int y){Weight=y;}  H. X. x- {8 S4 L4 F( b
private:/ G  O: r. _- S4 L4 s7 C; w
int Height;. \8 Q; o% x  V1 _" k# O
int Weight;  ?) A: p% ^, r6 d0 }
};$ t* l, a( t$ e- n6 v' D
# r# d  k/ U0 M0 ~. C+ f
void main(void)- \5 z4 P$ ]& @  A" `6 S% G/ j$ u
{: y  E( U9 H& b0 p
   Human Lee;
5 I! f% g0 F% L  ~: f+ I; m   Lee.SetHeight(172);
" o1 O( \; }+ B* E3 [   cout<<"Lee的身高是:";- j- t7 z4 _4 \' Q0 l8 r" o
   Lee.GetHeight();
; U. A0 \  L1 x' A5 ~   cout<<endl;& x' i% L# [, q3 v0 @' S+ p, v- }' w
   Lee.SetWeight(120);( l: O5 Q1 k3 Q) W; R; {
   cout<<"Lee的体重是:";
0 Q* C7 O0 Z, h9 @- O+ K   Lee.GetWeight();- k! J  ^. `2 S2 J# W- A8 W! X. ~
   cout<<endl;
) [! s1 o$ u3 G7 r& E, U}: l3 B2 p. n; ~* R& {  d' M( }. ~
第二种写法:
& b3 D; |* V! d0 r" W4 O#include <iostream>
4 K: m& A# u8 t+ vusing namespace std;
# y% W& S  K7 F9 \. {$ e0 dclass Human
4 e! U9 C4 k! |  B- L. G; U* l{
& L. G, T1 q6 @/ c, k6 g, ]1 J1 _public:
$ `$ B6 m* z; a! e3 ~ void GetHeight();8 O! r- p8 a! m3 L7 N: u
    void GetWeight();5 T3 H# C4 l' U3 k
void SetHeight(int x);  y; o' g; f+ k5 @! N# J' C/ q$ T, ~
void SetWeight(int y);
/ s" }* i+ ?% v$ n1 C+ Cprivate:
' q# D; [, \" R7 ^; I( m int Height;5 B/ l3 z: L+ W6 e6 a5 j
int Weight;( f& v1 P: e9 e. k- @: I
};
. ?+ T& G3 ^' |# s1 r  ?6 hvoid Human::SetHeight(int x)
6 z* M2 ]# r4 P' r5 y5 W{
- f4 H5 V; H9 O& r2 e" R: I  v Height=x;* Q" @3 ~! ~* N" {$ y$ {8 e
}
; b5 G; ?2 V; c5 E& J) l0 x* e  ovoid Human::GetHeight()
4 Q, q, ~: x; M+ d+ n- W{
0 P3 E- }/ p0 Q4 n# q* \ cout<<Height;! f, \9 ?3 |% p
}2 v* v4 m( [1 r. T
void Human::SetWeight(int y)
* d: M7 h& u: g: d6 P8 M/ L1 G1 g{
7 Y# L( j, ^/ s Weight=y;% s9 x, K: A: {  i
}# q0 p2 K+ v, u
void Human::GetWeight()& a4 Z, n6 j( N; v: {$ J9 M6 m
{% P4 y/ f" O& a. L( l# `. A' }6 X' N
cout<<Weight;
; A5 P" \+ n( F, D}
+ z% O8 z3 A# @+ ^( Cvoid main(void)" p8 r+ z6 m, z) w
{
% t/ A7 \* y. W1 {% n) h   Human Lee;$ R8 Q: l3 Z* K3 U6 l
   Lee.SetHeight(172);
* [$ o3 I- h3 g2 b* w) k, K1 }   cout<<"Lee的身高是:";! }, R, m# V  S7 k2 }' V
   Lee.GetHeight();
( p0 \7 X* G- e  Q1 ~  f' B% O7 @   cout<<endl;
4 i: M/ S$ J; i3 _9 v   Lee.SetWeight(120);" T! R: K8 W. u5 ^7 J' h1 R; x7 `* @# l
   cout<<"Lee的体重是:";
9 Q! j3 G+ L5 i   Lee.GetWeight();" j& v0 i' P- w" e3 ^2 ^
   cout<<endl;0 s1 }$ G) Y+ _
}
/ x2 {7 ~7 {" m5 ~' d8 T4 p8 ]$ {推荐第二种写法5 u3 r4 _' V; R$ K8 {

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