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C#委托冒泡

2024-09-15 03:25:09   215人阅读

委托的实现，就是编译器自行定义了一个类：有三个重要参数1.制定操作对象，2.指定委托方法3.委托链

看如下一个列子：

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class DelegatePratice
   {
       public static void Sort<T>(IList<T> sortArray, Func<T, T, bool> Comparison)
       {
           bool swapped = true;
           do
           {
               swapped= false;
               for (int i = 0; i < sortArray.Count - 1; i++)
               {
                   if (Comparison(sortArray[i], sortArray[i + 1]))
                   {
                       T temp = sortArray[i];
                       sortArray[i] = sortArray[i + 1];
                       sortArray[i + 1] = temp;
                       swapped = true;
                   }
               }
           } while (swapped);
           
       }
   }<br><br>定义实体类：
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class Employee
    {
        public Employee(string name, decimal salary)
        {
            this.Name = name;
            this.Salary = salary;
        }
        public string Name
        {
            get;
            set;
        }
        public decimal Salary
        {
            get;
            set;
        }
        /// <summary>
        /// 重写object的ToString方法
        /// </summary>
        /// <returns></returns>
        public override string ToString()
        {
            return string.Format("{0},{1:C}",Name,Salary);
        }
         
        /// <summary>
        /// 比较两员工的工资以此排序
        /// </summary>
        /// <param name="e1"></param>
        /// <param name="e2"></param>
        /// <returns></returns>
        public static bool Comparison(Employee e1, Employee e2)
        {
            return e1.Salary > e2.Salary;
        }
    }<br><br>

　调用

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class Program
    {
        static void Main(string[] args)
        {
            Employee[] employees = { new Employee("simen", 5500), new Employee("shelly", 5900),
                new Employee("pool", 4300), new Employee("renata", 3800) };
            DelegatePratice.Sort(employees, Employee.Comparison);
            foreach (Employee employee in employees)
            {
                Console.WriteLine(employee);
            }
            Console.ReadKey();
        }
    }
}

C#委托冒泡


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