Question

我正在制作各种自动统计辊，我希望它继续运行直到获得所需的输出。这是代码：

class Program
{
    static void Main(string[] args)
    {
        _getStats();
    }

    static void _getStats()
    {
        Random rnd = new Random();
        int stat1 = 0;
        int stat2 = 0;
        int stat3 = 0;
        int stat4 = 0;
        int stat5 = 0;
        int stat6 = 0;

        for (int i = 0; i < 6; i++)
        {

            int roll1 = rnd.Next(1, 7);
            int roll2 = rnd.Next(1, 7);
            int roll3 = rnd.Next(1, 7);
            int roll4 = rnd.Next(1, 7);
            int tempStatTotal = 0;
            List<int> rollList = new List<int>();

            rollList.Add(roll1);
            rollList.Add(roll2);
            rollList.Add(roll3);
            rollList.Add(roll4);
            rollList.Sort();
            rollList.RemoveAt(0);

            foreach (int j in rollList)
            {
                tempStatTotal += j;
            }

            if (i == 0)
            {
                stat1 = tempStatTotal;
            }
            else if(i == 1)
            {
                stat2 = tempStatTotal;
            }
            else if (i == 2)
            {
                stat3 = tempStatTotal;
            }
            else if (i == 3)
            {
                stat4 = tempStatTotal;
            }
            else if (i == 4)
            {
                stat5 = tempStatTotal;
            }
            else
            {
                stat6 = tempStatTotal;
            }
        }

        if(stat1 == 18 || stat2 == 18 || stat3 == 18 || stat4== 18 || stat5 == 18 || stat6 == 18)
        {
            Console.WriteLine(stat1);
            Console.WriteLine(stat2);
            Console.WriteLine(stat3);
            Console.WriteLine(stat4);
            Console.WriteLine(stat5);
            Console.WriteLine(stat6);
        }
        else
        {
            Main(null); //Start the process all over again until one of the stats is 18
        }
    }
}

当我运行此代码时，在某些情况下，控制台会记录6个数字，其中1个是18。在大多数情况下，应用程序会中断并且抛出错误System.StackOverflowException。我知道这与无限循环有关，而且之所以会发生是因为我递归地调用了我的方法，但是我该如何解决呢？

Answer 1

使用do-while循环：

class Program
{
static void Main(string[] args)
{
    _getStats();
}

static void _getStats()
{
    do
    {
        Random rnd = new Random();
        int stat1 = 0;
        int stat2 = 0;
        int stat3 = 0;
        int stat4 = 0;
        int stat5 = 0;
        int stat6 = 0;

        for (int i = 0; i < 6; i++)
        {

            int roll1 = rnd.Next(1, 7);
            int roll2 = rnd.Next(1, 7);
            int roll3 = rnd.Next(1, 7);
            int roll4 = rnd.Next(1, 7);
            int tempStatTotal = 0;
            List<int> rollList = new List<int>();

            rollList.Add(roll1);
            rollList.Add(roll2);
            rollList.Add(roll3);
            rollList.Add(roll4);
            rollList.Sort();
            rollList.RemoveAt(0);

            foreach (int j in rollList)
            {
                tempStatTotal += j;
            }

            if (i == 0)
            {
                stat1 = tempStatTotal;
            }
            else if (i == 1)
            {
                stat2 = tempStatTotal;
            }
            else if (i == 2)
            {
                stat3 = tempStatTotal;
            }
            else if (i == 3)
            {
                stat4 = tempStatTotal;
            }
            else if (i == 4)
            {
                stat5 = tempStatTotal;
            }
            else
            {
                stat6 = tempStatTotal;
            }
        }

        if (stat1 == 18 || stat2 == 18 || stat3 == 18 || stat4 == 18 || stat5 == 18 || stat6 == 18)
        {
            Console.WriteLine(stat1);
            Console.WriteLine(stat2);
            Console.WriteLine(stat3);
            Console.WriteLine(stat4);
            Console.WriteLine(stat5);
            Console.WriteLine(stat6);
            break;
        }
    } while (true);
}
}

Answer 2

啊，递归。在获得StackOverflowException之前，这都是有趣的游戏。

您正确的是使用递归引起了这一点。递归是一个有用的工具，但是在长时间运行的操作中，它可能会耗尽您的内存。正如其他人已经建议的那样，请使用while循环。您可以使用do-while循环，但我认为常规循环会很好。

static void _getStats()
{
    Random rnd = new Random();
    int stat1 = 0;
    int stat2 = 0;
    int stat3 = 0;
    int stat4 = 0;
    int stat5 = 0;
    int stat6 = 0;

    while (stat1 < 18 || stat2 < 18 || stat3 < 18 || stat4 < 18 || stat5 < 18 || stat6 < 18)
    {
        // rest of your code
    }

    // Move your printing after the while loop. Once one of the stats hits 18 or above,
    // print the results.
    Console.WriteLine(stat1);
    Console.WriteLine(stat2);
    Console.WriteLine(stat3);
    Console.WriteLine(stat4);
    Console.WriteLine(stat5);
    Console.WriteLine(stat6);
}

重复调用函数，直到收到所需的输出

2 个答案: