fig10_23.cpp

是有关C++编程原理教程的例子程序,全,应该对大家有所帮助

// Fig. 10.23: fig10_23.cpp
// Driver to test class Employee.
#include <iostream>
using std::cout;
using std::endl;

#include "Employee.h" // Employee class definition

int main()
{
   // use class name and binary scope resolution operator to
   // access static number function getCount
   cout << "Number of employees before instantiation of any objects is "
      << Employee::getCount() << endl; // use class name

   // use new to dynamically create two new Employees
   // operator new also calls the object's constructor
   Employee *e1Ptr = new Employee( "Susan", "Baker" );
   Employee *e2Ptr = new Employee( "Robert", "Jones" );

   // call getCount on first Employee object
   cout << "Number of employees after objects are instantiated is "
      << e1Ptr->getCount();

   cout << "\n\nEmployee 1: " 
      << e1Ptr->getFirstName() << " " << e1Ptr->getLastName() 
      << "\nEmployee 2: " 
      << e2Ptr->getFirstName() << " " << e2Ptr->getLastName() << "\n\n";

   delete e1Ptr; // deallocate memory
   e1Ptr = 0; // disconnect pointer from free-store space
   delete e2Ptr; // deallocate memory
   e2Ptr = 0; // disconnect pointer from free-store space

   // no objects exist, so call static member function getCount again 
   // using the class name and the binary scope resolution operator
   cout << "Number of employees after objects are deleted is "
      << Employee::getCount() << endl;
   return 0;
} // end main

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