Console.WriteLine("請輸入10個數(shù)字");
int a = 0; //記錄數(shù)字1的個數(shù)
int b = 0; //記錄數(shù)字2的個數(shù)
int c = 0; // 記錄數(shù)字3的個數(shù)
int d = 0; // 記錄不合法的數(shù)字的個數(shù)
int [] shuzhu = new int [10];//儲存用戶輸入的數(shù)字

        try
        {
            for (int i = 0; i <shuzhu.Length; i++)
            {
                Console.WriteLine("請輸入第{0}個數(shù)字",i+1);
                shuzhu[i] = Convert.ToInt32(Console.ReadLine());
                switch (shuzhu[i])
                {
                    case  1:
                        a++;
                        break;
                    case 2:
                        b++;
                            break;
                    case 3:
                            c++;
                            break;
                    default:
                            d++;
                            break;
                }
                
            } 
            Console.WriteLine("數(shù)字1的個數(shù)是{0}",a);
            Console.WriteLine("數(shù)字2的個數(shù)是{0}", b);
            Console.WriteLine("數(shù)字3的個數(shù)是{0}", c);
            Console.WriteLine("數(shù)字不合法的個數(shù)是{0}", d);
        }
            
        catch 
        {

            Console.WriteLine("輸入錯誤");
        }
        Console.ReadKey();