重复调用函数，直到收到所需的输出

Question

我正在制作一种自动统计滚轮，我希望它保持运行ning 直到我获得所需的输出。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
        }
    }
}

当我运行这段代码时，在某些情况下，控制台会记录 6 个数字，其中 1 个是 18。大多数时候，应用程序中断并抛出错误 System.WhosebugException .我知道这与无限循环有关并且它正在发生，因为我正在递归调用我的方法，但我该如何解决这个问题？

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。在您获得 WhosebugException 之前，一切都很有趣和游戏。

你是对的，你对递归的使用导致了这个问题。递归是一个有用的工具，但它会在 long-运行操作期间耗尽你的内存。正如其他人已经建议的那样，使用 while 循环。您可以使用 do-while 循环，但我认为常规循环就可以了。

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

Call function repeatedly until desired output is received

c#

stack-overflow

recursion