.net中的委托

using  System;
using  System.Collections.Generic;
using  System.Linq;
using  System.Text;
// 使用未命名委托来减少应用程序的复杂性
namespace  AnonymousDelegates
{
     // 定义委托
     delegate   decimal  CalculateBonus( decimal  sales);
   
     // 定义类
     class  Employee
    {
         public   string  name;
         public   decimal  sales;
         public   decimal  bonus;
         public  CalculateBonus calcalation_algorithm;
    }
     class  MyTest
    {

         static   void  Main( string [] args)
        {
             decimal  multiplier  =   2 ;
            CalculateBonus standard_bonus  =   new  CalculateBonus(CalculateStandarBonus);
             // 匿名委托
            CalculateBonus enhanced_bonus  =   delegate ( decimal  sales) {  return  multiplier  *  sales  /   10 ; };

            Employee[] staff  =   new  Employee[ 5 ];
             for  ( int  i  =   0 ; i  <   5 ; i ++ )
            {
                staff[i]  =   new  Employee();
            }

            staff[ 0 ].name  =   " 111 " ;
            staff[ 0 ].sales  =   100 ;
            staff[ 0 ].calcalation_algorithm  =  standard_bonus;

            staff[ 1 ].name  =   " 222 " ;
            staff[ 1 ].sales  =   200 ;
            staff[ 1 ].calcalation_algorithm  =  standard_bonus;

            staff[ 2 ].name  =   " 333 " ;
            staff[ 2 ].sales  =   300 ;
            staff[ 2 ].calcalation_algorithm  =  standard_bonus;

            staff[ 3 ].name  =   " 444 " ;
            staff[ 3 ].sales  =   400 ;
            staff[ 3 ].calcalation_algorithm  =  standard_bonus;

            staff[ 4 ].name  =   " 555 " ;
            staff[ 4 ].sales  =   500 ;
            staff[ 4 ].calcalation_algorithm  =  enhanced_bonus;

             foreach  (Employee person  in  staff)
            {
                PerformBonusCalculation(person);
            }

             foreach  (Employee person  in  staff)
            {
                DisplayPersonDetails(person);
            }

            Console.ReadKey();

        }

         public   static   decimal  CalculateStandarBonus( decimal  sales)
        {
             return  sales  /   10 ;
        }

         public   static   void  PerformBonusCalculation(Employee person)
        {
            person.bonus  =  person.calcalation_algorithm(person.sales);
        }

         public   static   void  DisplayPersonDetails(Employee person)
        {
            Console.WriteLine(person.name);
            Console.WriteLine(person.bonus);
            Console.WriteLine( " ------------- " );
        }
    }
}