Question

一旦方法正确，我将如何重置30秒，到目前为止，在每种方法正确之后，我中止线程，然后在下一个方法中启动一个新线程，然后启动该线程，但是控制台仍然在30秒后关闭，而不是关闭重置计时器？我以为这是秒表计时器问题？

namespace Calculator
{

    class Program
    {

        static ThreadStart ThreadStart = new ThreadStart(Counter);
        static Thread Thread = new Thread(ThreadStart)
        {
            Priority = ThreadPriority.Highest
        };
        static void Main(string[] args)
        {

            Console.WriteLine("INSTRUCTIONS - You have 30 seconds to answer each question correctly, once you get the question right the next question will appear," +
            "if you get a question wrong the console will display INCORRECT and you will have until the end of the 30 seconds to answer it correctly.");
            //These are the instructions
            Thread.Start();

            q1();
            q2();
        }

        static Stopwatch timer = Stopwatch.StartNew();
        static void Counter()
        {
            if (timer.ElapsedMilliseconds < 30000)
            {
                Thread.Sleep(1000);
                Counter();
            }
            else
            {
                Console.WriteLine("Too late");

                Environment.Exit(0);
            }

        }

        static void q1() //Return type is a string as a string prompting the user will ask them to try again
        {
            Console.WriteLine("1+1"); //This is the question
            int answer = Convert.ToInt32(Console.ReadLine());// Can't apply int to a readline, so convert the useres input to an int so you can apply an int variable

            if (answer == 2) //If the users input is equal to 2 
            {
                Console.WriteLine("Correct");//Tells the user that they are correct
                Thread.Abort();
            }
            else
            {
                Console.WriteLine("Try again");
                q1();
            }
        }
        static void q2() //Return type is a string as a string prompting the user will ask them to try again
        {
            Thread Threadq2 = new Thread(ThreadStart);
            Threadq2.Start();
            Console.WriteLine("2+2"); //This is the question
            int answer = Convert.ToInt32(Console.ReadLine());// Can't apply int to a readline, so convert the useres input to an int so you can apply an int variable

            if (answer == 4) //If the users input is equal to 2 
            {
                Console.WriteLine("Correct");//Tells the user that they are correct
                Thread.Abort();
            }
            else
            {
                Console.WriteLine("Try again");
                q1();
            }
        }
    }
}

Answer 1

首先，您实际上并不需要这里的线程

第二，Timer可能不是您想要的，并且您似乎可以找到一种更简便的测量时间的解决方案。

public static DateTime _starTime;

...

Console.WriteLine("INSTRUCTIONS - You have 30 seconds to answer each question correctly, once you get the question right the next question will appear," +
        "if you get a question wrong the console will display INCORRECT and you will have until the end of the 30 seconds to answer it correctly.");

_starTime = DateTime.Now();

...

然后，当您要检查（即在用户回答后）时，您可以执行以下操作

var seconds = DateTime.Now.Subtract(_starTime).TotalSeconds;

If(seconds > 30)
{
   // game over
}

Answer 2

为什么不将timer.Restart();放在q1 / q2方法的开头？这样，每次您调用计时器时，计时器都会重新启动

Answer 3

尝试使用Timer设置间隔为30秒。发生事件时，只需关闭控制台即可。

private static System.Timers.Timer timer = new System.Timers.Timer(2000);
        static void Main(string[] args)
        {
            timer.Elapsed += Timer_Elapsed;
            timer.Start();

            // show instructions
            while (true)
            {
               string answer = Console.ReadLine();
                if (answer == "2") // check the answer somehow
                {
                    timer.Stop(); // and restart the timer
                    timer.Start();
                    // show next question
                }
            }

        }

        private static void Timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
        {
            Console.WriteLine("Too late");
            timer.Elapsed -= Timer_Elapsed;
            System.Threading.Thread.Sleep(2000);
            Environment.Exit(0);
        }

我将如何更改程序，以便在方法正确后使计时器休息

3 个答案: