//ToList()方法，翻译：把****转化为List集合。
　　　　　  //　控制台试试：

           string[] fruits = { "apple", "passionfruit", "banana", "mango","orange", "blueberry", "grape", "strawberry" };

            List<int> lengths = fruits.Select(fruit => fruit.Length).ToList();

            foreach (int length in lengths)

            {

                Console.WriteLine(length);

            }

            Console.ReadKey();

            /*

             5

             12

             6

             5

             6

             9

             5

             10

            */