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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:
3 j8 e6 N' U, H" K  e, J& ]#include <iostream>  g6 x- e$ N6 w5 X, A9 ~/ q
using namespace std;
7 ?2 r! M, s, K1 a1 s( G6 T: b. Kclass Human
1 h7 E# r  u0 K5 X  U* w1 D6 {{
+ R2 w1 t5 v* o- W3 q/ Zpublic:
; l4 l- g: v8 M' a( ? void GetHeight(){cout<<Height;}, h6 I5 @7 V8 Y; V6 A
void GetWeight(){cout<<Weight;}
5 N! P- J# ^: \2 u2 g+ n% l void SetHeight(int x){Height=x;}
1 _: s1 P. |2 g# p void SetWeight(int y){Weight=y;}
7 ~( R8 V( F4 K1 b* {+ }; T$ `6 }private:
' R& V  {2 H  p2 { int Height;6 N: B! E6 F9 g
int Weight;
+ G6 j% c, z1 \* A7 m9 d};
$ N9 t8 |" ^# R5 f4 Z* ^: l7 z5 _- e7 o' J, p1 d% c
void main(void)
4 m, N$ P$ K( Q3 \{
: |, n* S; d* g) }/ h) |* W   Human Lee;4 t7 _5 _3 ^% f" \( P, j
   Lee.SetHeight(172);
% N5 ]2 [8 d/ T3 Y8 I3 A9 g( m8 k+ }   cout<<"Lee的身高是:";+ B7 X" S# l/ u5 ~, o. t
   Lee.GetHeight();6 b$ L9 x  G5 {% y8 s
   cout<<endl;7 m% c4 K7 B7 y4 F* r, v6 W: B4 b- D
   Lee.SetWeight(120);3 _( ~  }" ^% d: x1 G" ~$ }! s) S
   cout<<"Lee的体重是:";5 A, a; T1 S+ D* ]8 W; K
   Lee.GetWeight();
& v8 E! w: [( `4 N, l   cout<<endl;+ L3 s/ E% i/ s& i' K7 Z
}
- m( ^; D6 e  K& t% {: T$ ~7 q, f第二种写法:
/ O4 D2 R9 t0 ^. Y6 _+ Q#include <iostream>
8 V/ y. q" T" musing namespace std;
8 d6 P# F7 A1 u! ~: b$ Vclass Human
! M6 H; O" y  x, N/ o9 W9 W{
, D; I! g+ a8 Y; x! A8 wpublic:1 n5 P6 Z9 U' c2 S8 b
void GetHeight();
- }( F. k- d3 ?6 K( g1 I    void GetWeight();
+ z: D1 t; c- A4 [. ]! k void SetHeight(int x);- h; x) F* Y4 Q6 ^0 R  [/ \+ m0 z% h6 `
void SetWeight(int y);5 F' V+ ?/ C5 z
private:7 D$ T7 ~" t0 {+ F# z
int Height;
: m+ K8 Z, x/ ~* G int Weight;
  [' Y' y, ?, Y" `* ~};+ f" i1 ^+ C7 W5 F
void Human::SetHeight(int x)
  @$ `' ?" [% V, H{
3 c" Z9 k9 ~( r7 ~, B6 T, h. s Height=x;4 Q; b+ T+ i) L+ i) w# T
}- h* K% _1 S6 K; ^/ G" K
void Human::GetHeight()
2 X+ B/ v9 C; G; f{  G: U8 [. j7 \$ b
cout<<Height;
+ Z7 Y1 X& s5 j7 S0 q}
6 }6 W3 t5 u- W# w2 E) ~void Human::SetWeight(int y), |  G! U' O3 a* i+ f
{
: P: Z7 j0 @4 M% B  i1 C- R9 R8 g Weight=y;
7 H& @3 h- s+ a2 j' h' g}
) u- c1 }! c) Jvoid Human::GetWeight()9 z* }( }( W. t8 l5 }: i& v  n
{+ O& H: h' ^6 [9 F; Z; K8 p
cout<<Weight;. F# G: d7 P" L8 |1 K+ t2 o
}
! J4 r5 z/ H7 N2 ]6 G4 @2 O3 ivoid main(void); x0 \5 [2 o' v) j5 J3 M3 u
{# M5 B+ ^& @% L% ~' @+ x
   Human Lee;. W% {& z  T- A( |: [) Y3 \
   Lee.SetHeight(172);2 Y5 o5 e. ]* c; Y& k9 k7 K
   cout<<"Lee的身高是:";  d5 `" k6 i; G! z& B9 L0 n$ M
   Lee.GetHeight();
" u3 \- x( Z/ L   cout<<endl;" d! P: k8 M& \
   Lee.SetWeight(120);" Q+ a; d+ e+ l. m
   cout<<"Lee的体重是:";
/ `& A0 A' Q, @$ P6 ], E   Lee.GetWeight();
; j% ?. a4 D" ?5 o   cout<<endl;" P. S% a% r$ p4 f! x
}4 O: R" n: o0 n2 o1 e" s+ _
推荐第二种写法
: {# {9 P' M9 `; l, s: _7 Y# `) |

' c* e. A# Q9 o" q8 B4 j  m
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