Func委托示例

 

class BubbleSorter
    {
        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 + 1], sortArray[i]))
                    {
                        T temp = sortArray[i];
                        sortArray[i] = sortArray[i + 1];
                        sortArray[i + 1] = temp;
                        swapped = true;
                    }
                }
            } while (swapped);
        }
    }

 

class Employee
    {
        public string Name { get; private set; }
        public decimal Salary { get; private set; }

        public Employee(string name, decimal salary)
        {
            Name = name;
            Salary = salary;
        }

        public override string ToString()
        {
            return string.Format("{0},{1:C}", Name, Salary);
        }

        public static bool CompareSalary(Employee e1, Employee e2)
        {
            return e1.Salary < e2.Salary;
        }
    }

 

class Program
    {
        static void Main(string[] args)
        {
            Employee[] employees = {
                new Employee("Bugs Bunny", 56300),
                new Employee("Elmer Fudd", 6300),
                new Employee("Daffy Duck", 25000),
                new Employee("Wile Coyote",1000000.38m)
            };

            BubbleSorter.Sort(employees, Employee.CompareSalary);

            foreach (Employee employee in employees)
            {
                Console.WriteLine(employee);
            }

            Console.ReadKey();
        }
    }