Csharp/CSharp Tutorial/LINQ/Reverse
Версия от 15:31, 26 мая 2010; (обсуждение)
An Example Calling the Reverse Operator
using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
public class MainClass {
public static void Main() {
string[] presidents = {"lore", "Truman", "Tailer", "Van", "Washington", "Wilson"};
IEnumerable<string> items = presidents.Reverse();
foreach (string item in items)
Console.WriteLine(item);
}
}
Get all reversed cars
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml.Linq;
using System.Linq;
class Car
{
public string PetName;
public string Color;
public int Speed;
public string Make;
public override string ToString()
{
return string.Format("Make={0}, Color={1}, Speed={2}, PetName={3}",Make, Color, Speed, PetName);
}
}
class Program
{
static void Main(string[] args)
{
Car[] myCars = new []{
new Car{ PetName = "A", Color = "Silver", Speed = 100, Make = "BMW"},
new Car{ PetName = "B", Color = "Black", Speed = 55, Make = "VW"},
new Car{ PetName = "C", Color = "White", Speed = 43, Make = "Ford"}
};
var subset = (from c in myCars select c).Reverse<Car>();
foreach (Car c in subset)
{
Console.WriteLine(c.ToString());
}
}
}
Reverse does exactly as it says
using System;
using System.Collections.Generic;
using System.Linq;
public class MainClass {
public static void Main() {
int[] numbers = { 10, 9, 8, 7, 6 };
IEnumerable<int> reversed = numbers.Reverse(); // { 6, 7, 8, 9, 10 }
}
}