輸入一段字符串，通過foreach循環將用戶輸入的字符串賦值給一個字符數組

 
            Console.WriteLine("請輸入一段字符串：");
            string str = Console.ReadLine();
            char[] chs = new char[str.Length];
            int i = 0;
            //將字符串轉成數組;

            foreach (var item in str)
            {               
                chs[i] = item;
                i++;
            }

            foreach (var item in chs)
            {
                Console.WriteLine(item);
            }

            Console.ReadKey();