C# Linq中的排序代码说明
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace LinqLearning
{
class Program
{
private static int[] GenerateLotsOfNumbers(int count)
{
Random generator = new Random(0);
int[] result = new int;
for (int i = 0; i < count; i++)
{
result = generator.Next();
}
return result;
}
static void Main(string[] args)
{
int[] numbers = GenerateLotsOfNumbers(12345678);
var queryResults = from n in numbers
where n < 1000
orderby n descending
select n;
Console.WriteLine("查询语法排序结果：");
DateTime start = DateTime.Now;
foreach (var item in queryResults)
Console.WriteLine(item);
Console.WriteLine("消耗时间：{0}",DateTime.Now-start);
var queryResult = numbers.OrderByDescending(n => n).Where(n => n < 1000);
Console.WriteLine("方法排序结果（排序字段在前）：");
start = DateTime.Now;
foreach (var item in queryResult)
Console.WriteLine(item);
Console.WriteLine("消耗时间：{0}", DateTime.Now - start);
var query = numbers.Where(n => n < 1000).OrderByDescending(n => n);
Console.WriteLine("方法排序结果（排序字段在后）：");
start = DateTime.Now;
foreach (var item in query)
Console.WriteLine(item);
Console.WriteLine("消耗时间：{0}", DateTime.Now - start);
Console.ReadKey();
}
}
}
33 666 :lol
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