#include <iostream>using namespace std;class Myclass{
private:int* datas;
public:Myclass(int size){datas = new int[size];}~Myclass(){cout<<"析构函数被调用"<<endl;delete [] datas;}
};int main()
{cout << "Hello World!" << endl;//第一次析构函数调用：局部对象作用域结束Myclass m1(5);Myclass* m2 = new Myclass(10);return 0;
}

 

#include <iostream>using namespace std;class Myclass{
private:int* datas;
public:Myclass(int size){datas = new int[size];}~Myclass(){cout<<"析构函数被调用"<<endl;delete [] datas;}
};int main()
{cout << "Hello World!" << endl;//第一次析构函数调用：局部对象作用域结束Myclass m1(5);Myclass* m2 = new Myclass(10);//第二次析构函数调用：delete删除内存delete m2;return 0;
}