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
8 x4 }( F4 V* v#include <iostream>
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using namespace std;
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* s; R" k% [' G/ M5 b  ]class CA
{
public:
2 s; O0 H2 U2 b/ r        CA();
        ~CA();
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private:
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};
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4 ]% z$ Z8 C3 G6 ^  aCA::CA()
{
        cout<<"构造函数在执行..."<<endl;
}

: ~" d2 {8 f. X4 G% j! [" KCA::~CA()
4 |- D- Z1 c  m2 m{
        cout<<"析构函数在执行..."<<endl;
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int main(void)
{
" c2 ^! |8 f+ j- N1 r        CA *p=new CA;
        delete p;

        return 0;
}

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