class Program
{
static void Main(string[] args)
{
Employee[] employees =
{
new Employee("Bugs Bunny",20000),
new Employee("Elmer Fudd",10000),
new Employee("Daffy Duck",25000),
new Employee("Wile Coyote",1000000.38m),
new Employee("Foghorn Leghorn",23000),
new Employee("RoadRunner",50000)
};
BubbleSorter.Sort<Employee>(employees,Employee.CompareSalary);
foreach (var employee in employees)
{
Console.WriteLine(employee);
Console.WriteLine();
}
Console.ReadKey();
}
}
public class BubbleSorter
{
static public 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);
}
}
public class Employee
{
public Employee(string name, decimal salary)
{
this.Name = name;
this.Salary = salary;
}
public string Name { get; private set; }
public decimal Salary { get; private set; }
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;
}
}
Func<T, T, bool> 是一個(gè)委托類型，最后一個(gè)類型表示返回的類型。
BubbleSorter.Sort<Employee>(employees,Employee.CompareSalary);這樣寫沒有問題他嚷。
BubbleSorter.Sort(employees,Employee.CompareSalary);這樣寫也沒有問題，編譯器可以自動(dòng)推斷類型。
