创建泛类集合List以及数组转集合，集合转数组的应用

            List<int> list = new List<int>();
            list.Add(1);
            list.Add(2);
            list.Add(3);
            list.AddRange(new int[] { 1, 2, 3, 4, 5, });
            int[] nums=list.ToArray();  //集合转数组
            for (int i = 0; i < list.Count; i++)
            {
                Console.WriteLine(list[i]);
            }
            char[] chs = new char[] { 'a','b','c'};
            List<char> listchar = chs.ToList();//char 类型数组转集合
            for (int i = 0; i < list.Count; i++)
            {
                Console.WriteLine(listchar[i]);
            }
            Console.ReadLine();