using System;
namespace BubbleSorter
{
//定义委托
delegate bool CompareOp(object lhs, object rhs);
class MainEntryPoint
{
static void Main()
{
Employee[] employees =
{
new Employee("Bugs Bunny", 20000),
new Employee("Elmer Fudd", 10000),
new Employee("Daffy Duck", 25000),
new Employee("Wiley Coyote", (decimal)1000000.38),
new Employee("Foghorn Leghorn", 23000),
new Employee("RoadRunner'", 50000)};
//实例化
CompareOp employeeCompareOp = new CompareOp(Employee.RhsIsGreater);
BubbleSorter.Sort(employees, employeeCompareOp);
for (int i = 0; i < employees.Length; i++)
Console.WriteLine(employees[i].ToString());
Console.ReadLine();
}
}
class Employee
{
private string name;
private decimal salary;
public Employee(string name, decimal salary)
{
this.name = name;
this.salary = salary;
}
public override string ToString()
{
return string.Format(name + ", {0:C}", salary);
}
//委托调用的方法
public static bool RhsIsGreater(object lhs, object rhs)
{
Employee empLhs = (Employee)lhs;
Employee empRhs = (Employee)rhs;
return (empRhs.salary > empLhs.salary) ? true : false;
}
}
class BubbleSorter
{
static public void Sort(object[] sortArray, CompareOp gtMethod)
{
for (int i = 0; i < sortArray.Length; i++)
{
for (int j = i + 1; j < sortArray.Length; j++)
{
//使用委托中的方法比较
if (gtMethod(sortArray[j], sortArray[i]))
{
object temp = sortArray[i];
sortArray[i] = sortArray[j];
sortArray[j] = temp;
}
}
}
}
}
}