c#习题之2

 string str = null; 
            Console.WriteLine("请输入一个字符串");
            str = Console.ReadLine();
            char[] c = new char[str.Length];
            int i = 0;
            foreach (var item in str)
            {
                c[i] = item;
                i++;
            }
            Console.WriteLine(c);
            Console.ReadKey();