学习了用控制台显示结果

class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("请用户输入年龄");
            string  age = Console.ReadLine();
            int age1 = Convert.ToInt32(age);
            if (age1 >=18)
            {
                Console.WriteLine("可以查看");             
            }
            else if (age1 <=10)
            {
                Console.WriteLine("不允许查看");  
            }
            else if (age1 >10 && age1 <18)
            {
                Console.WriteLine("yes/no");
                string age2 = Console.ReadLine();
                if (age2 == "yes")
                {
                    Console.WriteLine("用户请查看");
                }
                else
                {
                    Console.WriteLine("退出,你放弃查看");
                }
            }
            Console.ReadLine();
        }
    }