56.成员变量的初始化例子

(@_@)

class CA
{
4 k' X! W. y# t- }3 I) qpublic:
        CA(int ,int );
# b$ Y, l1 }! N* l' F& I        ~CA();

! ]; P, M7 N$ ~- _# g" [4 Bprivate:
    const int num;
+ @1 V, Y' |: E" N" c        int &mum;
. b+ T9 Z5 `& c" K};
, I% A3 C# D) u$ r" E7 n5 m
$ S' n& l. x" P; ]! g% aCA::CA(int x,int y):num(x),mum(y)
0 o6 ?8 K6 q3 r4 U" c+ v{
' o7 Q2 A% p) T: w  o) |        cout<<num<<","<<mum<<endl;
}

, \: T: W" H; LCA::~CA()
{
# ]7 ]; Y. C. v) ^}
2 A5 @& |3 W7 e; H
" O( W% F1 u/ f! _#include <iostream>
  o0 l$ T" O% m& X! C9 U
using namespace std;

#include "成员变量的初始化与构造函数1.h"

1 x, Q' ^# i" Z* D/ V* [  q+ Pint main(void)
{
! e# A; W" s) @( d7 L" b6 C1 f        CA a(2,3);
+ v0 ]% ]+ q4 G" r, [
( D; y* @* ]3 b2 _$ t        return 0;
}