int[] arry = { 1, 3, 565, 76, 4, 32, 2 }; //linq写法 var res = from i in arry select i; //lambda写法 var res = arry.Select(i => i);//Linq var res = from s in arry where s%2 == 0 select s; //Lambda var res = arry.Where(s => s % 2 == 0);