c# - 错误4无效的表达词 'else'

Question

帮助iv看到其他问题，但是我是C#的初学者

码:

namespace Input_Program
{
    class Program
    {
       static void Main()
        {
           char Y = Console.ReadKey().KeyChar;

           Console.WriteLine("Welcome to my bool program!");
           Console.WriteLine("Input a NON capital y or n when told to.");

            if(Y == 'y')
            {
                Console.WriteLine("Thank you,Please wait.....");
                Console.WriteLine("You input Y");

                else;
                {
                    if(Y == 'n')
                    {
                        Console.WriteLine("You input N");
            }
        }
    }
           Console.ReadLine();
}

Answer 1

您不应该在else后面加上分号，并且错过在else之前的结束括号。

namespace Input_Program
{
    class Program
    {
        static void Main()
        {
            char Y = Console.ReadKey().KeyChar;
            Console.WriteLine("Welcome to my bool program!");
            Console.WriteLine("Input a NON capital y or n when told to.");
            if(Y == 'y')
            {
                Console.WriteLine("Thank you,Please wait.....");
                Console.WriteLine("You input Y");
            }
            else
            {
                if(Y == 'n')
                {
                    Console.WriteLine("You input N");
                }
            }
            Console.ReadLine();
        }
    }
}