如何在C＃中打破while循环。打破不工作

Question

我似乎无法使用break语句突破这个while循环。这是我的代码：

while (true) {
            Console.WriteLine("What is 1 + 1?");
            int answer = Convert.ToInt32(Console.ReadLine());
            if (answer != 2)
            {
                Console.WriteLine("Wrong answer. Press enter to get your next sum");
                Console.ReadLine();
            }

            else if (answer == 2)
            {
                Console.WriteLine("Well done. Press enter to get your next sum");
                Console.ReadLine();
                break;
            }
        }

        Console.WriteLine("What is 1 + 3");
        int answer2 = Convert.ToInt32(Console.ReadLine());

Answer 1

当您输入不同于2的数字时，您实际上读取了另一行未处理的行：

if (answer != 2)
{
    Console.WriteLine("Wrong answer. Press enter to get your next sum");
    Console.ReadLine();
}

你的困惑可能是因为这条线。将其更改为：

if (answer != 2)
{
    Console.WriteLine("Wrong answer. Press enter to get your next sum");
}
else{
    Console.WriteLine("Correct answer");
    break;
}