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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:* {9 H+ i8 X6 q3 Z7 g5 v2 R6 e  f& [
#include <iostream>
7 S1 x) W+ o: Q; cusing namespace std;
# t$ A/ e8 k& M# Q3 |1 ?  Aclass Human
2 `2 {3 b; w9 V; A. K{) w# S6 o( |2 a  |
public:
8 W1 B, u, B6 }8 n: ]5 H: A' ]5 q void GetHeight(){cout<<Height;}
" q, x4 `% U9 M( ~" O+ W void GetWeight(){cout<<Weight;}& R4 a! V" o$ O7 }$ t3 n) m( {, o" s
void SetHeight(int x){Height=x;}
1 W9 U6 y, W* @' j) A: b. }9 R void SetWeight(int y){Weight=y;}
3 d1 L! N/ w; ?1 P6 Mprivate:5 R* y, @, R% I9 A* v- }
int Height;
9 @" T! r0 o- g* p" c int Weight;
8 j* Y5 P0 m4 o* T. v};( t9 O( D2 C! B( Z$ [" q) G0 ], Q

- D% V' [8 b+ `5 T6 w- wvoid main(void)
0 f7 `3 j9 T, H{; ?" O" f  p+ s+ [
   Human Lee;
8 i6 y6 k! C/ }8 I2 S' |   Lee.SetHeight(172);
1 }0 Z/ w% C2 ^7 t: q2 _   cout<<"Lee的身高是:";
5 r2 H, z' Q/ v% k; ~0 J# `! }   Lee.GetHeight();
1 P# V" J; e9 y0 t: V1 d   cout<<endl;( w: f3 y9 n$ N# _* J: o% J
   Lee.SetWeight(120);0 P" @1 Z  k) `% p: m5 r; `' `/ j
   cout<<"Lee的体重是:";
" M6 z9 D/ e' C- a8 F+ w   Lee.GetWeight();' s# ]: |" i' f
   cout<<endl;; v/ p7 u3 G2 [( n$ T# q
}1 @" a" \& K2 {* O" {" w
第二种写法:
) o$ a, Y) N! E( ]#include <iostream>
7 L+ r0 m( V  q2 G6 l2 G; a( g1 tusing namespace std;
9 c) F; i9 N3 v- M6 nclass Human
+ }" c3 g1 A8 _2 [/ `{4 h8 i& I/ ?2 E, n. g! ^! B
public:$ K$ F% D5 _1 k0 c$ W
void GetHeight();
7 l8 {" ?& _8 X, [    void GetWeight();% t5 u5 N* F" ]- X; a8 }0 N
void SetHeight(int x);) J/ B3 M9 [0 W, S$ i( Y
void SetWeight(int y);
8 ~" o7 }  E0 D$ }4 I# V2 _6 c: S! Iprivate:( [$ B8 p* D( S8 q6 m3 H
int Height;2 v7 Z) L& Z, c" K: A0 d: Q2 S$ {
int Weight;0 r2 c  d; g7 ~$ U; H( B
};; W. |/ w$ {6 N( Q
void Human::SetHeight(int x)2 G/ S. X; D' w
{$ ?/ \' s: K. o7 y5 n
Height=x;) r6 }* k9 k7 Z  J8 H, B& {7 [
}
9 \+ U, [" Y" B* k+ F/ x  n0 l, Mvoid Human::GetHeight()
% V, m% v5 k; E0 U7 n5 ^{+ ?. P3 j$ {4 X) r" y0 w0 F/ t
cout<<Height;
8 e6 Z7 y( ^1 {2 S}1 N3 B$ z+ A. ~+ A8 @( @% B
void Human::SetWeight(int y). z# Q* G* X) }/ `) Y8 d
{
  `( M& O3 y) b! o! [1 v2 ~" A$ T% S Weight=y;* K% E/ [# W* A/ K7 u3 _' D+ S$ \
}
3 v5 |  W1 \  a2 u9 X6 T" |" }/ zvoid Human::GetWeight()3 B/ T$ a- S) `% l4 Y! E* q1 N) C- Q
{6 c! \: `( s( F: C7 u- T0 M
cout<<Weight;
+ `! c- h6 R& _! V, H}, z+ L. M" w% T! b, X; S
void main(void)) W# y) ?( K7 J+ n0 y9 |" C
{6 L2 O7 r3 d+ j2 A7 c8 n2 B
   Human Lee;
+ s0 a% W  G" `% r   Lee.SetHeight(172);
6 _$ y5 D5 w7 l! P   cout<<"Lee的身高是:";
% q  e5 v8 [  g3 D% L, c   Lee.GetHeight();% Z# d' a% w: r* i) ~
   cout<<endl;& G/ B/ e! e* s% m# n- F1 X
   Lee.SetWeight(120);
' W% t, B7 f6 K+ Q) p6 W   cout<<"Lee的体重是:";
4 |. V& [4 f0 O9 k   Lee.GetWeight();$ }2 V$ M2 _# J* Q% K2 \
   cout<<endl;6 ?0 N2 R3 y9 D8 _! _
}
9 ^& M7 Q, Q6 y8 R& e推荐第二种写法
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