3．编写程序：定义一个Person类，要求：

①私有成员数据：

●char ID[ 20 ] //身份证号

●char *name //存放姓名的动态字符数组的起始地址

●char *address //存放住址的动态字符数组的起始地址

②公有成员函数：

●Person ( char *n=0, char *na=0, char *ad=0 ) //构造函数

●Person ( Person &p ) //拷贝构造函数，实现深拷贝

●~ Person ( ) //析构函数

●Person & operator= ( Person &p ) //实现深赋值

●void show() //输出各成员数据

③编写main()函数对Person类进行测试。-3. Write a program: Define a Person class requirements: ① private member data: ● char ID [20]　// ID number ● char* name　// store name starting address dynamic character array ● char* address // store address the dynamic character array starting address ② public member functions: ● Person (char* n = 0, char* na = 0, char* ad = 0)　// constructor ● Person (Person &　p) // copy constructor, to achieve deep copy ● ~ Person ()　// destructor ● Person &　operator = (Person &　p)　// achieve deep assignment ● void show ()　// output data ③ members write main ( ) function of the Person class to be tested.