练习：把123转换为：壹贰叁。Dictionary<char,char>

            //练习：把123转换为：壹贰叁。Dictionary<char,char>
            "1一 2二 3三 4四 5五 6六 7七 8八 9九"
            string str = "1一 2二 3三 4四 5五 6六 7七 8八 9九";
            //123  一二三
            Dictionary<char, char> dic = new Dictionary<char, char>();
            string[] strNew = str.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);

            for (int i = 0; i < strNew.Length; i++)
            {
                //1一 strNew[i][0]  strNew[i][1]
                dic.Add(strNew[i][0], strNew[i][1]);
            }

            Console.WriteLine("请输入阿拉伯数字");
            string input = Console.ReadLine();

            for (int i = 0; i < input.Length; i++)
            {
                if (dic.ContainsKey(input[i]))
                {
                    Console.Write(dic[input[i]]);
                }
                else
                {
                    Console.Write(input[i]);
                }
            }
            Console.ReadKey();