61.析构函数和delete运算符搭配使用

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delete会自动调用析构函数来释放new创建的空间
- h: A/ u$ e5 ]. h0 |#include <iostream>

6 m' [+ a3 O! e8 S0 q, V: o. S: i, Uusing namespace std;

class CA
" u5 g# j+ w' e; i{
( ]3 z" x& C3 ~! i, h; gpublic:
        CA();
        ~CA();
( @$ O1 B6 s9 x: C
private:

% P% H: u3 d  Z+ M/ Y1 T( A};

' f2 T9 m& s/ a" ?. ?' TCA::CA()
0 M& h$ V4 m% j: I/ D{
. _3 \) g- j4 u5 [3 ~) Q& Y        cout<<"构造函数在执行..."<<endl;
}
! T- @" J( I8 n, p
: H3 V7 n& B' U4 I4 dCA::~CA()
{
+ n8 M3 u9 [9 D' s' ~        cout<<"析构函数在执行..."<<endl;
}

3 {3 W- t1 ^3 k  C. _' ?* nint main(void)
7 {* b/ R  L  h% S6 z- D" h1 l{
        CA *p=new CA;
, f6 g7 I8 U" i6 f+ U+ z        delete p;
( K+ b8 S. N8 x( \, l0 A% @
        return 0;
}