c# 你如何使用循环来重复数组中的一个阶段？

Question

我在数组中存储了一些问题供用户回答，但我不希望用户输入整数。当用户输入整数时，它会说“请输入一个单词”，然后跳到下一个问题。我希望它重复问题，直到用户输入一个词，然后继续循环。

我最近才开始学习 c#，非常感谢任何帮助。

            string [] Ques = new string [5];
            Ques[0] = "How do you say Good morning  in Portuguese";
            Ques[1] = "how do you say how are you;";
            Ques[2] = "how do you say I am fine thank you";
            Ques[3] = "How do you say is everything ok";
            Ques[4] = "how do you say yes";

            foreach (string Q in Ques)
            {
                Console.WriteLine(Q);
                string Answer = Console.ReadLine();
                int value;
                if (int.TryParse(Answer, out value))

                {
                    Console.WriteLine("please enter a word");

                } 


            }

Answer 1

您需要的是在 for 中使用 while 循环:

string[] Ques = new string[5];
Ques[0] = "How do you say Good morning  in Portuguese";
Ques[1] = "how do you say how are you;";
Ques[2] = "how do you say I am fine thank you";
Ques[3] = "How do you say is everything ok";
Ques[4] = "how do you say yes";

foreach (string Q in Ques)
{
    Console.WriteLine(Q);
    string Answer = Console.ReadLine();
    int value;
    while (int.TryParse(Answer, out value))
    {
        Console.WriteLine("please enter a word");
        Answer = Console.ReadLine();
    }
}

这样，对于每个问题，当用户输入一个整数时，他会提示“请输入一个单词”，并一直持续到他输入一个无法解析为 int 的字符串，然后才会提示下一个问题。