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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:
0 ^6 o+ i+ v( Z3 I5 R- y6 S6 \3 c#include <iostream>7 d) |! K5 |  |/ U  p  {1 m4 ^* r
using namespace std;
# f1 W. Z+ v: _6 x( \class Human7 v; {& _% `1 ]' W9 s
{
" ^! v$ v3 d/ X6 [2 s" gpublic:- E) p% M. U, d7 u4 N3 }2 S
void GetHeight(){cout<<Height;}" g/ T* q2 @, c$ y
void GetWeight(){cout<<Weight;}
1 _/ J( [' o% R4 \/ H1 d void SetHeight(int x){Height=x;}
* g) J. J  r" h0 [3 y% Y" _ void SetWeight(int y){Weight=y;}/ K  u, Y, v- ?6 C& B& q/ f
private:& G0 `2 V6 V3 q: ~. ]
int Height;
" K% t% s# U8 T$ I- h( ^! Z- B  S& ~ int Weight;
- M2 j* `  ~) D7 `2 x/ F};
& p# ?: T. q- Y7 \" i4 e
' H+ S; b# a7 a, i0 _void main(void)5 n- Z+ O1 C1 O
{; z' W+ q" Z" a9 C" w6 p
   Human Lee;$ c- n" N& F7 F2 @+ K
   Lee.SetHeight(172);
2 p/ h, O' `$ N6 F   cout<<"Lee的身高是:";
  p6 J0 x8 v/ A% m' {, ]   Lee.GetHeight();& F: m" j4 m4 r- N+ A. ?+ q# ?
   cout<<endl;2 ~  i; \, J( z8 h
   Lee.SetWeight(120);
8 K7 ~2 e4 N5 \   cout<<"Lee的体重是:";: T$ C9 U! i# j0 p" e9 I
   Lee.GetWeight();; c1 e* ?( z9 `( B6 Y
   cout<<endl;; g: H3 |9 k; l# Q: h& ?
}, \( a- v/ E4 A5 ^( |
第二种写法:
) v+ c  |* h" d* {% R- f#include <iostream>. z0 n4 [' v$ K7 ?7 A* E
using namespace std;
+ l: U' O2 c6 `+ cclass Human. E, ?# r- o' M/ n+ k8 C- K8 h
{# R, c5 t# w1 o3 t9 Z3 P
public:0 e' m0 \2 z2 m$ n4 G# Y9 y& ^
void GetHeight();
9 I9 r0 ~9 ^' t9 n' ?' g5 f    void GetWeight();: E& S6 S5 E% @
void SetHeight(int x);
/ j% U# X! R* p4 ~: M0 y void SetWeight(int y);
' v  [  J* r) r. {private:1 w. O# n: X! h3 M8 I2 x
int Height;
0 ?* \7 p& A& t6 G int Weight;
" N. R, W$ C# d8 d7 t};
* W: }" J/ }3 `void Human::SetHeight(int x)' j8 D; t3 k! c& f4 i
{% Y+ f! _5 d& g2 M
Height=x;, e  L8 ]! S( l+ w
}0 s) j/ d& e" C) k; {/ u
void Human::GetHeight()
0 x# Y/ u; f% v0 [7 _. A6 l' w{
8 H" D' B1 n8 [% }. V6 b cout<<Height;" i& K. i! @) e7 d
}& R$ c- G9 Z8 X. d" g
void Human::SetWeight(int y)
( r  T; U, j1 C{# |9 e+ c6 C9 x; e7 ?. \
Weight=y;' q: Z& h# `$ t6 w' n0 s
}3 V" ^. o' s3 `2 e
void Human::GetWeight()2 M. r( _. w1 y. \& @8 }
{
' k+ P. `' [5 R0 E% G+ I& _ cout<<Weight;9 X! p" L$ x7 _- N; M
}
4 l$ H3 f2 N+ l8 Z- |void main(void)
9 e8 v' S' J; j1 k: L# T{5 C: T- q$ y2 \  `& ^' U" ]$ m
   Human Lee;# b2 U- y1 y0 V+ G% p
   Lee.SetHeight(172);2 y1 {. D$ J3 X+ t% E2 F& ~' |
   cout<<"Lee的身高是:";/ X! J' S; b  @2 \+ H6 N' j
   Lee.GetHeight();
$ @, N. ^$ r, y0 b   cout<<endl;/ y# W" Z2 ^. N$ V! u; d. v
   Lee.SetWeight(120);
6 m; K8 x1 B' X' D" L2 P2 r2 a4 v/ k$ j2 C   cout<<"Lee的体重是:";- M! U, j' w% \8 R, M' F7 {9 Q
   Lee.GetWeight();
7 w% Z; n1 ~2 {& J: u. M2 y   cout<<endl;
; i; |) V: J$ \! i! i7 B}9 n- U6 {) L. U
推荐第二种写法
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