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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:
1 ?# x$ [' O3 ?" M* `8 q- a#include <iostream>% a5 C, T2 }3 w  m0 F
using namespace std;- }! @4 }- [- z, i8 ~; Z. e5 N
class Human. Y, y' Z& A$ X
{
/ M3 v. e$ Z* Rpublic:
4 t! d5 R' q( z void GetHeight(){cout<<Height;}
6 r/ D; {1 t( B* k3 D3 O% d- b void GetWeight(){cout<<Weight;}
) a; a0 Q9 T) g7 K0 k) U  C$ N void SetHeight(int x){Height=x;}
) @0 `# e! w- n3 }* h5 P( N3 d void SetWeight(int y){Weight=y;}
( O7 X* m1 S" Zprivate:) h& D4 |% P' N+ v; }! t( v
int Height;
3 n; w& A& |/ W* ]+ H* S! \ int Weight;
/ J5 Z" B/ i: [2 Y6 A1 e1 ]# {};. \$ ]& J0 L  k$ \' L+ O

+ Q0 Q; y9 o! q. u+ svoid main(void)+ c3 `6 V) z6 L( E* w
{
  e* p  X9 G7 w5 s* q0 Q   Human Lee;: ]- A# X1 V' Z: v% H5 o
   Lee.SetHeight(172);
7 a; P; @4 d3 @& f, }( X   cout<<"Lee的身高是:";
) m4 l4 C& s5 w5 o4 J, ^4 k   Lee.GetHeight();
: m) n  e# K3 C   cout<<endl;
4 o! {. h, Z# F  C- E   Lee.SetWeight(120);
# h0 `1 X* m+ _+ e   cout<<"Lee的体重是:";
2 |, Q5 R9 B4 W0 [7 Y( @   Lee.GetWeight();
* j/ o  j6 G1 ~   cout<<endl;
: L0 {; E3 o/ X% M) q/ F6 N8 u' T}
2 F; o, W4 N; v. t* Q$ N第二种写法:
0 C. I) H4 B# @3 W* L5 F#include <iostream>
& m, ]5 K. f. @) y: j. T5 S: busing namespace std;
6 a+ F5 ?# W1 N- n, d' Cclass Human
5 [- N! h. F" ]9 g7 f$ ~! Q! J{
' U3 G  T/ }' f4 o7 g3 Rpublic:
5 E) V$ B( p; w/ o, t0 ] void GetHeight();
! a* G6 x/ M' y) X; [    void GetWeight();8 Z1 S% k# {+ m( V8 y0 f4 Q& m
void SetHeight(int x);$ I' i1 J) p4 d3 J0 ~+ J+ \
void SetWeight(int y);$ @" @, L% w% G! Z8 e8 ^& O" j
private:
5 z3 ?7 S2 t! C% S- ^1 _ int Height;
! r- ~8 }8 @+ K( V1 G int Weight;& y7 t$ h4 a; T7 \7 W6 {, U0 j
};
. ?/ r0 k" p/ M9 u* X9 h) a4 fvoid Human::SetHeight(int x)# m. a; i( F# R6 N% s- I: G
{; T1 j: n: w2 S' X9 N
Height=x;: o* u: ?- ^* T' T- F1 f
}
, |% [" j) @% J$ r6 u6 Mvoid Human::GetHeight()
* J% d" w5 K, Q. h{7 |6 l" b" o, `6 z' T) g; W
cout<<Height;
; T; m+ Z  S5 ~$ c$ V8 t- A& _2 a}
0 [8 Q- u2 Y7 p7 tvoid Human::SetWeight(int y)' b* ~. I1 ~1 c8 X
{
& U  m5 |0 e# {. ~5 T2 F: Y Weight=y;
& ?5 B! @( J  h7 F! r+ y# {0 C}! y; e" f+ Z( c6 @- V4 V
void Human::GetWeight()0 P: s1 t+ a! g% }, p( @, q
{
& y, T5 T6 \4 L' z# v; D2 }, p& F cout<<Weight;) y; Z( b! }# ]3 Y6 d* }
}$ h1 X5 s0 x, I$ R+ t' P1 e3 t
void main(void)& _7 w. d/ O7 P4 ^6 `# v* ?5 I
{9 D0 ]. o. R- y# J. J; ?7 g
   Human Lee;" _; M' I( d9 i' U$ a  v3 f
   Lee.SetHeight(172);' H: j6 @- [' [3 S9 E
   cout<<"Lee的身高是:";
. M; D6 e+ k7 _1 x6 _   Lee.GetHeight();( l/ K% {  T% m( o, T1 a; k
   cout<<endl;
$ ~  h. n, z, c- R1 u   Lee.SetWeight(120);! g8 B5 {6 R; H$ a9 @: g% v
   cout<<"Lee的体重是:";
- L. E) o3 k* v% i   Lee.GetWeight();
. ~0 {. m1 i+ p- ]; r   cout<<endl;! N8 F, ]+ \# f5 [, P2 }
}
4 }' K5 r0 m) h3 N) g" D  K- H  F推荐第二种写法9 c3 V. N# W  W

0 m! U' B7 @, T) N4 d/ R' u6 j7 g3 D' [: ~; x, K5 @+ ?: S
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