Linq

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace linq1
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] values = {2,3,4,5,46,56,67,576,-3,4 };
            IEnumerable<int> e1 = values.Where(i => i > 0);
            foreach (int i in e1)
            {
                Console.WriteLine(i);
            }
            Console.WriteLine(values.Max());
            Console.Read();

            var p = new { Age=5,Name="tom"};
            IEnumerable<int> e3 = values.Where(i => i > 0).OrderBy(i => i);
            var e2 = values.Where(i => i > 0).OrderBy(i => i);

            var e4 = from i in values where i > 10 orderby i descending select "[" + i + "]";

            string[] value = { "fewf", "few", "grewg", " gre, greg, reg" };

            var str = from item in value where item.Length < 5 select item;
            var str1 = from item1 in values let a=item1 where item1 > 100 select item1;

            Dictionary<string, int> dict = new Dictionary<string, int>();
            dict["tom"] = 20;
            dict["tom"] = 30;
            dict["tom"] = 40;
            dict["tom"] = 30;
            var x1 = from name in dict.Keys where dict[name] > 20 select name;
            string.Join(",", x1);   //分隔开
            
        }
    }
}