namespace lambda{    delegate void TestDelegate(string s);    class Program    {        static void Main(string[] args)        {            //动态构建C# Lambda表达式例子1            var ints = new int[10] {
   10,2,3,4,5,2,34,54,4,40};            var newints = ints.Where(i => i > 20);            foreach (var a in newints)            {                Console.WriteLine(a);            }            Array.ForEach
     
      (ints, i => Console.WriteLine(i));            TestDelegate del = (s) => { string n = s + ":hello"; Console.WriteLine((n)); };            del("tom");            Action
      
        ac = (s) => { Console.WriteLine(s+":hello");};            ac("action");            Func
       
         fun = s => { return s + ":hello"; };            Console.WriteLine(fun("func"));            Func
        
          myFunc = (x, y) => (x.ToString() == y);            Console.WriteLine(myFunc(3, "3"));            var q = from e in ints                    select new                               {                                   test = e > 5 ? e : -1                               };            foreach (var v in q)            {                Console.WriteLine(v.test);            }            Console.ReadKey();        }    }}