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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 z8 b9 o6 \" Y; B7 V3 N, J#include <iostream>
0 o0 D. E+ p% \" r! q/ nusing namespace std;
' y1 k( B: R( h' ^class Human5 y* ]% t2 F+ C5 I
{5 o4 C6 `9 w, t0 y1 f0 m
public:
6 Y  ?, q4 O- c7 P void GetHeight(){cout<<Height;}2 c( I- _4 K7 s
void GetWeight(){cout<<Weight;}
; n6 T- e2 {5 Z: v: J void SetHeight(int x){Height=x;}
' M1 q# L2 l2 i3 \8 F void SetWeight(int y){Weight=y;}$ v# z, b6 r+ x* s1 o7 i
private:1 u- ?3 |) t3 Z+ s- y/ Q8 _
int Height;# d1 [% w: _4 I9 v4 c7 L
int Weight;3 K* D, @0 V" p! @
};
, s& n3 x; M2 J# j* H) @. d+ d
# |3 P" w9 F& m/ Y4 v8 mvoid main(void)
; ?9 M: s- t+ p* }# R! c" _0 I% W& M& M{- B8 Y" }9 t0 v, a: f3 L
   Human Lee;  \5 f3 l  b6 N
   Lee.SetHeight(172);! @( K' C; h2 k: z
   cout<<"Lee的身高是:";! P& Y1 P$ u" E# x" a4 i
   Lee.GetHeight();, P2 k; P1 R% \, H. I
   cout<<endl;
( d( D( Q( ~9 |, z   Lee.SetWeight(120);! U6 w9 T9 J/ F0 ^- r5 R) [1 D7 M, \
   cout<<"Lee的体重是:";8 ^; X2 N; J8 H1 @8 m" c! ?. f( O. h' [
   Lee.GetWeight();) w( K* T% q3 u8 b6 U
   cout<<endl;1 }% F: |0 ]" P
}
, g4 z- t4 I6 T' w$ Q8 x第二种写法:
$ h/ u3 _8 v" f) W+ f+ W#include <iostream>
. O# z: J, i' X! B  @& T1 @using namespace std;
2 O' Z* b- ~9 `9 v1 W; dclass Human
  I% ^7 D  T% G3 o{6 d4 ?% S5 v5 _( `! C
public:
+ K# ~6 t5 d$ u2 Q% T) z2 N void GetHeight();
; J5 E- r7 V& p1 q    void GetWeight();
$ {! Q: I8 d" y: X' J( } void SetHeight(int x);
2 O9 B/ i+ j% J( v. ?5 A void SetWeight(int y);
0 }6 D! g% v7 P; ]' oprivate:: f$ k. t$ Z1 @" v! y& A3 R
int Height;- }* r5 f- y8 D8 C; n# [
int Weight;
. e, R$ q8 @- _2 ~- n};
9 n+ a6 u, U6 k  ^0 @void Human::SetHeight(int x)
, V9 V. E! [- b) ]( W. A  F{5 p2 ^7 o4 }; `) p5 |+ T
Height=x;
& {3 [9 X% w$ ?7 c+ t7 E}  T. g# g4 A1 u  t4 U. i8 N% H
void Human::GetHeight()6 _6 c0 m; t! O* v$ h/ d3 N% b
{
  `; x" W' s; y7 X cout<<Height;. U3 ?. g8 [* r: v/ d
}
6 J3 x& N- Q4 E# p7 `void Human::SetWeight(int y)
/ d# Q% l; q0 U& t{
3 s& |; ?6 s! J5 q Weight=y;" M* M5 [3 |2 M) b' w$ u$ t
}/ w, F! Y9 x7 Y; t# A  a
void Human::GetWeight()' ^, R; j% y3 j: Z) F- a
{  t, y: B& }2 J
cout<<Weight;
: D$ Y' U) `! x4 ]$ @8 j}
! {$ X- j5 j3 \  L" ]7 ovoid main(void)
( |  E  k2 D5 z1 e{
! L& k. N" [+ V   Human Lee;1 `" \9 `% b+ ]4 E7 C: j2 T+ M4 \( j
   Lee.SetHeight(172);' D" r( b- E0 @
   cout<<"Lee的身高是:";9 N/ ~- {/ X: A0 k
   Lee.GetHeight();- S& O: p( \# p/ K
   cout<<endl;
' W& }- j8 m5 U" H& M% v+ b+ n   Lee.SetWeight(120);  z2 z6 \6 n7 A5 {( k
   cout<<"Lee的体重是:";
$ x: R0 a3 [" A7 Z, P   Lee.GetWeight();+ ^7 V9 a6 \7 C) B" y$ ?% q
   cout<<endl;% v+ d' Y* I- ?* g
}% M$ o' B# U- D+ o# Q
推荐第二种写法
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1 v  O1 i, r; E* g
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