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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:6 X" Z$ W  e2 R) O. I
#include <iostream>
% R/ G) b9 A' C2 O1 r: i0 [, Eusing namespace std;2 v9 `. I$ K( o3 v
class Human
- K# e5 u( ?! W5 ~$ ?- h* p; O, l{% v9 \( j# l2 f( z6 `
public:
( D, _% Z1 q  N* R  d! X void GetHeight(){cout<<Height;}
' g# [6 K& E' J" M  D* C% q void GetWeight(){cout<<Weight;}
0 M9 r$ B+ K9 M3 J2 `( Q void SetHeight(int x){Height=x;}. U& Z4 Z3 p/ A! o1 F' _" N1 ?
void SetWeight(int y){Weight=y;}( N8 o  @0 b  B- t9 \. C6 D
private:" N* C0 b  d! m" t5 S! |
int Height;
* g, N. z/ `" l4 B/ G) ?  B* O int Weight;
0 `7 g; x( s8 x& O! a" |7 J};) _8 O  C9 k5 p. T. p' A) w  ?

0 T4 n4 r" J$ B5 nvoid main(void)
5 u$ [% d/ q* y$ ~3 A1 o8 B{' @0 a4 g, j) g) z; G
   Human Lee;. K) Y3 _9 O" h7 _3 S3 v0 p4 H
   Lee.SetHeight(172);4 Y  `& Z; F" V2 u- ?
   cout<<"Lee的身高是:";
( V! ~7 o& V) E; N5 {   Lee.GetHeight();
" a( h0 x9 O" }( H   cout<<endl;$ d* Y9 a' b- L! Q9 ?5 N- l
   Lee.SetWeight(120);
/ O9 J+ ^+ f& m/ i) U   cout<<"Lee的体重是:";8 ^& T/ j: W4 a6 G6 b
   Lee.GetWeight();
" \! Q) \( M, \; @, q0 J! C   cout<<endl;
8 F$ j0 c/ m. k- O: Y% M: o- J3 k}3 ^1 u: o" C5 x- J$ m- D
第二种写法:
+ K! _7 v: M/ }0 O#include <iostream>
* @  L' j6 C! Y4 S  I4 kusing namespace std;4 C! F) l- m" G/ v  M3 A
class Human8 j4 b3 ]5 |" j  M7 }: X  y" u
{
  U+ ]8 L9 ?% G; b) [+ dpublic:7 I! `" K! s! e; M* n; U$ M8 s
void GetHeight();/ g% q0 a9 A  q! ^2 X3 \
    void GetWeight();
% c$ `; O: B) a! f' \ void SetHeight(int x);) S: N& n# J) Q) B7 S
void SetWeight(int y);
; h4 P$ J8 j/ [3 c* cprivate:9 A8 ~# [( ~! B: O4 B3 N* L1 J
int Height;3 z; c$ C: K; Z/ g8 r/ @% \* {
int Weight;
: C6 h* \# q. b( Z; M7 |};+ y3 _9 Z/ Y. Y& d: a6 q" c
void Human::SetHeight(int x)
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Height=x;
9 h+ B+ [, Z6 O9 V% ?1 l! n}' E6 G( E% m$ A
void Human::GetHeight()
( @5 W) K0 w& q" N{
* q! S9 E  {, w, d  C7 k9 x cout<<Height;* Q: i$ x2 v8 c8 B/ O
}
# k& o# N. i4 G8 M4 _/ D9 }void Human::SetWeight(int y)$ F5 S, a, Q  _" H* U7 a4 {5 N
{
8 l3 P" O) F  s% X1 K! g+ O Weight=y;
6 `: M* N0 F0 p}/ z1 m, f& z$ _$ \, b# @+ j
void Human::GetWeight()
9 s4 B9 a* z/ g6 a( Q{
6 c9 ]5 M- D5 k5 q3 ^ cout<<Weight;& i5 h! t: K8 ^
}; D4 B8 F. Q; o# K# P' v3 d8 z' f
void main(void)4 n$ U6 Q4 ]/ V# m, h4 @% G
{+ M! ?0 T- `# O- o4 h
   Human Lee;. e- C( ?9 e/ X0 ~3 k2 K6 q
   Lee.SetHeight(172);; D% D& z# s0 @. L! N
   cout<<"Lee的身高是:";% B: s: H' G/ F) R$ V) y
   Lee.GetHeight();
6 n2 D3 k1 C! ~! Z( y& i   cout<<endl;
/ h% n% E* e/ b2 m   Lee.SetWeight(120);- @' g2 z7 O2 O1 T& }" a5 p
   cout<<"Lee的体重是:";
0 [, I7 M% C- ~$ [) h   Lee.GetWeight();, R7 K! m8 ], B7 ^; M! ]. H
   cout<<endl;* m% O7 _6 F4 U! k' |
}! G1 Y# c3 a' B
推荐第二种写法& M* `$ m3 z+ Q& z3 F  L
: {, z; u/ }: U! F; H- G4 j
  S! w4 l+ ~, ]& U+ h9 ^5 ]
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