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
; y! i- A7 |6 o- K: t6 `#include <iostream>

1 x* _& X& ]6 Z0 k+ j4 x4 V  Tusing namespace std;
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class CA
4 C$ _, x! N: r! a" r+ p{
8 c* t( C; {4 Y2 ?7 [public:
        CA();
        ~CA();
* ]- S& M8 y+ e. I) H: N3 _
6 \4 X4 G  _9 l' Fprivate:

1 j8 D0 `( q7 N5 U; l};

4 d0 E5 h% m! D- _( g, Y: ~CA::CA()
" a8 G( U& m, E1 h3 @/ |{
        cout<<"构造函数在执行..."<<endl;
}
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CA::~CA()
{
2 c) t* {+ ]* N4 h3 h9 |" }0 j; k        cout<<"析构函数在执行..."<<endl;
0 q6 T# a5 _: O' ~}
6 M- u% a  J. L8 T+ N& f
% m; _( M- A$ Y, q% O9 _int main(void)
& a" s& t# W( N% ~* w{
        CA *p=new CA;
$ G/ X$ ?# L* u2 Y/ Q7 k        delete p;
  i. s9 F, H% r- u6 Q
        return 0;
" P, @' N! Y7 G7 l}

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