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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 ?0 _7 B0 a7 _' g#include <iostream>+ [2 v2 i. H: B9 N" ~) s7 e* ^
using namespace std;
- x6 E- E6 ]5 G' e: v1 g5 r& z6 bclass Human. o4 ]# m3 W5 {9 l! B, f7 n
{
. m/ s/ H9 p0 f4 S0 E% w, rpublic:0 O% K9 p* N- U. [+ ~" L
void GetHeight(){cout<<Height;}
  j7 u1 ^( h4 \( v7 `6 m, L void GetWeight(){cout<<Weight;}8 t( u0 u7 E, X
void SetHeight(int x){Height=x;}
- S5 ?( y- T" h0 r8 Z' ^) X void SetWeight(int y){Weight=y;}
6 ~/ m3 U( N, L) _) b% `private:
& C* q& T" w. x$ K, p7 Z int Height;
, x7 `' @% `& \: c' j* t! F  A- I int Weight;# Z1 Y: H. h! E) @% P: r& {% t" b" M
};1 `; e* e, u' b# b% |, y

( i7 V- l, t& C  d' `void main(void)8 E  b% V8 A+ o7 B4 ~
{
& C6 C# }$ k/ n' \# Z5 f$ \   Human Lee;
2 Y9 D, ]  ^. O, V* |0 ~   Lee.SetHeight(172);
# J/ ?2 X7 c6 w3 M7 K   cout<<"Lee的身高是:";
7 i7 H: D: c' h# G( {7 n0 H* c' }   Lee.GetHeight();
+ n% u  g& D9 @   cout<<endl;+ u  f8 ~# C! f0 o
   Lee.SetWeight(120);, K5 f" [# V8 s* f3 H, g! w
   cout<<"Lee的体重是:";
/ c/ W2 V+ |& D! l* H- k" I   Lee.GetWeight();0 e0 l- M4 ~( C1 Q
   cout<<endl;
& q# {% F1 p- f3 Q0 f  T}
" x/ U  b1 ?. y: F0 \: V+ h第二种写法:
) m9 E: o6 J4 ~. }#include <iostream>2 O9 {7 r  U: k; u4 m' y$ a
using namespace std;
) K# s. L; T# h3 ^class Human
' z) V; ]/ `% y$ d6 R: Q; H/ F{
9 r2 W& N$ Z$ d9 W' m* ]! Lpublic:
0 l- l7 p3 [9 g6 r: \' A void GetHeight();
, X! f2 d  u6 F: s' u+ U2 }    void GetWeight();# K6 X( a9 W+ ]0 a
void SetHeight(int x);+ y0 ~  X) B1 q) s2 ]
void SetWeight(int y);# I& Z6 u2 W4 }4 L$ p& B" ?* I4 r
private:+ S0 y& y+ ~- X0 G
int Height;5 n  ]6 ]8 i8 Q7 i. n# F$ \& G8 F8 D
int Weight;* k7 o$ K# m. b" s/ }! |
};- h/ n2 C. z9 g8 f7 n! b
void Human::SetHeight(int x)
$ _4 k: c4 M( H7 k' U( m+ t5 H{
0 [6 c* C8 Q  U. @5 n  g Height=x;
7 x4 d5 `& I+ m) O, T3 i2 o5 ^* `% N}
# C3 b! \( x  `void Human::GetHeight(): |' z1 `+ e" {. N7 @
{2 ?+ T2 `7 a' K- L
cout<<Height;
+ ?/ o- @- H$ U$ f% {6 b+ Y7 @}( @4 @8 ]/ j+ b9 A
void Human::SetWeight(int y)
2 h5 O& m6 J* a2 ^{
# S# ^3 o) M6 v7 Y+ H! U0 v Weight=y;
" O: J2 a" B3 Y; V}' w9 t' t0 n5 |3 b2 e! |. K
void Human::GetWeight()
# b$ d* Z! |3 R5 F{
6 F; D, a7 Z; [2 o! |7 E cout<<Weight;" Q, J9 n8 J. \2 P- B" f2 B
}; x5 e7 f  o+ k( K7 o: s
void main(void)" a6 `, f. R6 W
{1 G* E7 C8 Q/ n
   Human Lee;
" |& u- ~7 r, v5 F   Lee.SetHeight(172);$ w  n4 w$ }- r; v" R4 [* N) D
   cout<<"Lee的身高是:";) A+ u0 ?* h1 k
   Lee.GetHeight();
; i% s3 X7 c$ e% w* l   cout<<endl;
- t$ v3 y. M  I5 q8 j1 g   Lee.SetWeight(120);2 O* O  Y* k- o. F' P# r1 S) {
   cout<<"Lee的体重是:";8 ^, X7 `9 c7 J/ i/ L/ L: X
   Lee.GetWeight();* Z2 v8 b6 f2 S. _- `6 ?& t+ p
   cout<<endl;3 l+ k' o! `  D( S
}
7 `1 H# ?3 j1 i! E, m6 m* \推荐第二种写法
4 j/ a4 h! e+ X/ L9 z5 m
/ D5 C' H" t( t. l9 s/ X1 a! m: `" r3 j. I! v: y
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