while 循环提前结束

Question

我正在尝试创建一个程序，其中 CommonCharacters Student 和 HonorsStudent（CommonCharacter 的子类）通过试图让彼此获得较低的测试分数来相互“战斗”。在我的主班（见下文）中，我试图模拟角色之间的这种“战斗”，但我无法让角色继续“战斗”，直到剩下一个人。我在 while 语句的条件中使用了 Count 属性，以便它循环直到计数达到 1。因为循环在 3 次运行后结束，所以我永远没有机会从 . （HonorsStudents 在 afterScore

我的 while 循环有问题吗？

class Program
{
    static void Main(string[] args)
    {
        List<CommonCharacter> characters = new List<CommonCharacter>();
        characters.Add(new Student("Sarah", "female", 1));
        characters.Add(new Student("Kevin", "male", 2));
        characters.Add(new HonorsStudent("Matthew", "male", 3));
        characters.Add(new HonorsStudent("Gwen", "female", 4));

        // This will be used to choose a character to "battle" at random from the List of characters
        Random random = new Random();

        while(characters.Count > 1)
        {
            foreach(CommonCharacter CommonCharacter in characters)
            {
                int randomStudent = random.Next(characters.Count);

                // This makes sure there is no instance where a student "attacks" themself
                if (CommonCharacter.Name == characters[randomStudent].Name)
                {
                    random.Next(characters.Count);
                }
                else
                {
                    int points = CommonCharacter.TakeTest();

                    if (points > 0)
                    {
                        int afterScore = 100 - points;
                        Console.WriteLine(CommonCharacter.Name + " reports " + characters[randomStudent].Name + " for cheating and loses them " + points + " points.");
                        Console.WriteLine(characters[randomStudent].Name + " now has a test score of " + afterScore);
                        Console.WriteLine();
                    }
                    else if (points == 0)
                    {
                        Console.WriteLine(CommonCharacter.Name + " reports " + characters[randomStudent].Name + " for cheating but the claim is dismissed.");
                        Console.WriteLine();
                    }
                }
            }

            // This loop checks if any Students have fled
            for (int i = 0; i < 2; i++)
            {
                if (characters[i].HasLeftClassroom() == true && characters[i].Position == "student")
                {
                    characters.RemoveAt(i);
                    Console.WriteLine(characters[i].Name + " has received below a 25 and has left the classroom.");
                }
            }

            // This loop checks if any HonorsStudents have fled
            for (int i = 2; i < 4; i++)
            {
                if (characters[i].HasLeftClassroom() == true && characters[i].Position == "honors student")
                {
                    characters.RemoveAt(i);
                    Console.WriteLine(characters[i].Name + " has received below a 50 and has left the classroom.");
                }
            }

            break;
        }

Answer 1

您的while 循环以break 语句结束。中断立即终止循环。如果您不希望循环终止，请不要编写 break 语句。

养成使用调试器逐行单步调试代码的习惯，并仔细检查每一行。养成这种习惯会让你自己发现这样的缺陷。

我还注意到，有一个语句仅包含对 Next 的调用，但它丢弃了结果。这几乎肯定是错误的。该方法仅对其结果有用！

这里可能有很多错误。再次，进入调试器，逐行，并验证每一行是否完全按照您的意图进行。由于至少有一条线没有按照您的意图执行，这就是错误。