《C/C＋＋程序设计导论（第二版）》一书的程序源文件

				// perlist.h  Definition of a PersonList class  (pnode.h contains
				//    the definition of a Person)
				#include "pnode.h"
				class PersonList
				{	public:	PersonList ();										// constructor
								void Insert (const Person&);
								void Delete (const Person&);
								void Traverse ();
								~PersonList ();									// destructor
								PersonList (const PersonList&);			// deep copies
								PersonList& operator= (const PersonList&);
					private:	Pnode *start;
				};