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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:" n( J- a) }: C. n: c' w
#include <iostream>( H% Z+ s% a2 O1 Y+ X) f- A
using namespace std;
% K0 u1 k9 a6 l5 ], c1 Fclass Human% U, ?7 m  s8 y* d2 ]
{
: l! l; I( f8 Y- u0 G" rpublic:
6 c) S$ v- {( l2 v, c3 p void GetHeight(){cout<<Height;}1 A; f/ h0 y7 c0 k# [) V+ C
void GetWeight(){cout<<Weight;}% Z* T+ f5 c/ e( a& h$ ]4 I* s
void SetHeight(int x){Height=x;}
' _; \. H  H* w$ D0 } void SetWeight(int y){Weight=y;}9 d( L9 o' w. q$ r! @
private:
6 {6 Y" [2 B; q, V int Height;' \' t# V% ^( d  o' {( i6 @
int Weight;
6 P6 \- i8 {7 v( J4 Y) X};) W. f+ T" d9 o7 A6 m; w
0 d, @% m+ ?4 [  x5 k
void main(void)2 h7 A3 s1 m) s; Q8 E8 G" T
{
# n% w( [( S( d6 `: b   Human Lee;: E1 I3 H' @2 M% G8 P# @2 G
   Lee.SetHeight(172);& j! t5 K( `  Z$ p; ]9 I
   cout<<"Lee的身高是:";
  l7 z$ Y1 e1 B" ]2 Q: U! C   Lee.GetHeight();; i2 A7 y6 k* }; ?6 `# v, R3 D
   cout<<endl;' S* s( F' [! U- m
   Lee.SetWeight(120);# V* H+ ~# }* n9 w
   cout<<"Lee的体重是:";
# X! g5 y& G9 M& S* J   Lee.GetWeight();3 M4 G: x+ L6 J: X+ A; i
   cout<<endl;" p4 e3 A# T. p3 g& g1 P$ h* z. }( J6 }
}
( y; ?; e! T( J% S  V第二种写法:
: W$ B* L3 I6 m& F$ B#include <iostream>! V" i1 F' q- ]* W/ n. _2 c8 h
using namespace std;% H( I! o7 |1 U8 d: Q
class Human
. @6 g+ N! }& w$ G8 ^0 |  C# @{! y! U+ p; |/ N' H6 C
public:! }- K9 z. E6 L/ F
void GetHeight();; t  Z% l$ P" m7 M
    void GetWeight();
+ C1 {: V, u) _# x6 u0 j; } void SetHeight(int x);! h/ }3 B/ H" p7 O/ N
void SetWeight(int y);" L' a( ^4 N1 B8 |; @( ~  r
private:
: y/ |8 ^7 _+ r/ v( ` int Height;
  I4 _+ P3 Q; m8 B4 f int Weight;
% a2 ^( h4 S/ x& q};
: Q- t: T6 a8 ]' J( ~void Human::SetHeight(int x)$ T, n, w, a5 L6 t8 H6 F+ ?, a% ]
{4 U" @/ D  e0 `/ H3 ^
Height=x;& C! R) g) y' q0 {$ J+ D
}5 r* a( V( O: a0 j$ T/ I
void Human::GetHeight(): e5 h& J& O' H& Z" n
{
/ ~0 h4 Q  z4 B cout<<Height;
1 b6 U8 k$ G- O) d}
& A) W9 T( ^- C1 e- c. d6 O. Q* {void Human::SetWeight(int y)
9 V- U+ g. i! f5 _& s, H8 M+ S{
# W) X$ k. R7 B. P. U2 r Weight=y;
% R, `! v. T2 P4 d" g}" i* S' R1 ^6 R; _7 a" J- I
void Human::GetWeight()- ~9 ^( M5 @8 \+ ^6 P# q0 R
{
' @* Q  K+ P# l, x2 V& x+ I cout<<Weight;; l# C- }3 H. M% Q* c
}
/ L1 P- h/ g& T$ a7 X# N# s% g8 Dvoid main(void)# f3 a2 F1 d+ A! m2 H
{
& A+ d6 @/ g" J/ @4 R   Human Lee;$ b) y- T: b5 e
   Lee.SetHeight(172);
. E- ^( J. l8 K   cout<<"Lee的身高是:";/ b; O0 [/ C1 h+ {
   Lee.GetHeight();: ^: X3 v5 N7 U+ S
   cout<<endl;
3 \$ h0 r+ V2 f& v/ r, x, W  H% o; }   Lee.SetWeight(120);
1 E; v- s0 O+ |( w8 q% V   cout<<"Lee的体重是:";
0 I+ h! m' I! U0 M( E4 M   Lee.GetWeight();
: X: U+ k1 v) l) u9 n- J   cout<<endl;
: R: w0 r2 ], U7 n+ v; H}
5 V# D% f2 q) n- E: C推荐第二种写法: U) ~3 a# L2 i

) G: Y, j, N0 ?, C2 r1 m- H( W+ o" y$ _; W, j! f
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