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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:) x$ Y3 d  J  g2 z' l1 `! M% G! u
#include <iostream>
+ e; J& ]* e* eusing namespace std;
6 u# c# f2 K; k5 f  n; A2 Eclass Human% i7 E+ ~( e# A' B
{- E0 P7 t, x5 @4 ^. ^7 u0 p
public:# O/ v2 u4 Q7 S$ a' h
void GetHeight(){cout<<Height;}
; r" }& `( B; ] void GetWeight(){cout<<Weight;}
8 |& [7 W- t2 H void SetHeight(int x){Height=x;}
; b$ I. l- m2 _ void SetWeight(int y){Weight=y;}
1 p  N( I8 L" ~: t5 l% }6 D* bprivate:
  K  \- h1 P. u+ ~! d: ^2 [) M; s int Height;
2 n$ }+ I, S- }# Z7 s; r/ A int Weight;
* {+ ^4 E+ h; _3 W$ Q};
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# I/ ]& q/ k0 H% ]" [8 S' N0 \) Mvoid main(void)
2 w6 y" w8 G) m( b& G6 e{+ j# h! [$ [1 U0 q7 N7 S
   Human Lee;
# w, k" k$ x4 _+ t  A7 r5 R   Lee.SetHeight(172);0 h1 W) H) q9 D8 l
   cout<<"Lee的身高是:";( q* u4 H0 W4 f  B3 U8 {* _
   Lee.GetHeight();% h# ~& A$ Y" Z, y& ]
   cout<<endl;
8 A  _9 _( f/ u1 E  v( k3 l& S6 F   Lee.SetWeight(120);7 u& H! g1 p, u) M; K. h
   cout<<"Lee的体重是:";
% K% {6 r" K3 c   Lee.GetWeight();
5 f4 A4 a1 j* \1 F   cout<<endl;$ q% S3 W* A5 q' p) V. j. i
}
0 o2 [6 K. r9 m0 Y# ]9 @8 Z. J第二种写法:2 z0 P; a' y3 v. I9 i
#include <iostream>4 S- F* E6 m. C: \
using namespace std;
# Z5 \+ z" b; G8 d. H8 ?4 }; fclass Human
( _! D) N/ P/ t; ^& c{
2 x9 x' p8 M" P; \public:0 A0 w% A! Q: g' S2 h, H, b
void GetHeight();: ^0 G8 z- _5 l+ c  C) ?! e9 x9 _
    void GetWeight();, e! }. s# K% G: e
void SetHeight(int x);
) j' Y1 O8 K. n$ D5 h% H3 n void SetWeight(int y);
9 r: P! [9 W6 R' Jprivate:
8 C1 K1 H2 E/ [8 \9 c8 w* L int Height;' Q/ E4 j, Q) O) u
int Weight;
  I9 z$ _% l; O( M3 `. y. X8 {};
% Y  _% ?* ^8 Pvoid Human::SetHeight(int x)* R2 W* E4 o# t. m
{
! N# @% b" W& ] Height=x;; B* w+ W% b6 G0 B& m1 C0 ]
}
% f: f* i7 q; g5 _; Cvoid Human::GetHeight()0 d0 }0 @# b1 Q6 e& s. U
{' D6 W/ \; _' m, _  R- X% v- }" A
cout<<Height;+ v4 E% i9 J" V$ j
}% L: R4 E* _2 R! P, R
void Human::SetWeight(int y)$ ~! r9 l+ ~" }
{
& a! ~1 ~# i1 _ Weight=y;1 L) v- T# l$ ^- N9 S2 M' a+ Q' Y
}
6 z& e6 X* p0 W; D3 Svoid Human::GetWeight()) A6 X4 v' J$ \+ {
{) g/ a. u' \$ x, H
cout<<Weight;
( A" u+ ~" D8 X8 l}: s1 d( C+ z, J* p6 Z/ G) Q
void main(void)8 Z! V5 q/ x) `3 T8 J( f% Y; N# v
{
0 U3 e( Y! w0 u$ k( E& {; I9 @% L, h9 P   Human Lee;
! z8 T" b: z4 B) V# [) p   Lee.SetHeight(172);
- p( d0 `! S& X/ J: d+ ~4 }   cout<<"Lee的身高是:";1 N/ w- N  P6 C* C
   Lee.GetHeight();4 s0 \9 k$ _, y7 ?1 k2 c5 A, F
   cout<<endl;; S- q4 v+ I( p6 W& q/ @9 N
   Lee.SetWeight(120);. p: @' i- |% T% f( _# t0 o
   cout<<"Lee的体重是:";
6 T( @4 q  ]2 P- D6 u" D   Lee.GetWeight();
8 R3 @; g9 e( d; Q   cout<<endl;
; n% [: e* b1 H# a/ i; d8 k9 S1 Q) s}4 [% o: D7 F; e9 A  I# P; h
推荐第二种写法% K3 l5 B: ?' b. G1 n

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