class1.cs

C#开发教程 由浅入深 配有实例 是初学者的好帮手

using System;

namespace NotPolymorphic
{
	class Employee
	{
		public string name;

		public Employee(string name)
		{
			this.name = name;
		}

		public void CalculatePay()
		{
			Console.WriteLine(
				"Employee.CalculatePay called for {0}", 
				name);
		}
	}

	class ContractEmployee : Employee
	{
		public ContractEmployee(string name) : base(name)
		{
		}

		public new void CalculatePay()
		{
			Console.WriteLine(
				"ContractEmployee.CalculatePay called for {0}", 
				name);
		}
	}

	class SalariedEmployee : Employee
	{
		public SalariedEmployee (string name) : base(name)
		{
		}

		public new void CalculatePay()
		{
			Console.WriteLine(
				"SalariedEmployee.CalculatePay called for {0}", 
				name);
		}
	}

	class TestNotPolymorphic
	{
		protected Employee[] employees;

		public void LoadEmployees()
		{
			// Simulating loading from a database.
			employees = new Employee[2];
			employees[0] = new ContractEmployee(
				"Adam Barr");
			employees[1] = new SalariedEmployee(
				"Max Benson");
		}

		public void DoPayroll()
		{
			for (int i = 0; i < employees.GetLength(0); i++)
			{
				employees[i].CalculatePay();
			}
		}

		[STAThread]
		static void Main(string[] args)
		{
			TestNotPolymorphic t = new TestNotPolymorphic();
			t.LoadEmployees();
			t.DoPayroll();
		}
	}
}