我正在尝试编写一个简单的程序，选择 1 到 10 之间的随机数并让用户猜测它

Question

我是 C# 新手，在循环方面遇到了一些困难。 对于这个，我尝试使用“for”循环。我尝试了各种选项 - for、while 循环，但我无法达到预期的结果。

对于这个，即使我“猜”到了数字，他们也说我输了。

{
    var random = new Random();
    int random2 = Convert.ToInt32(random.Next(0, 10));

    Console.WriteLine(random2);


    for  (var i = 4; i <= 4; i++)
    {
        Console.WriteLine("Please enter a number from 0 to 10:");
        var input = Convert.ToInt32(Console.ReadLine());

        if (input != random2)
        {
            Console.WriteLine("You have {0} tries left.", i - 1);
            continue;

        }

        if (input != random2)
        {
            Console.WriteLine("You have {0} tries left.", i - 1);
            continue;
        }

        if (input != random2)
        {
            Console.WriteLine("You have only {0} try left!!", i - 1);
            continue;
        }

        if (input == random2)
        {
            Console.WriteLine("You lose!!!");
            break;
        }

        if (input == random2)
        {
            Console.WriteLine("You have won!!!!!");
            break;
        }

    }
}

我想做的事：编写一个程序，选择 1 到 10 之间的随机数，并为用户提供 4 次猜测的机会。但是，我想让控制台打印剩余的尝试次数，并在用户最后一次尝试时打印不同的消息。

Answer 1

让我们从头开始一步步实现吧：

1. 让我们从评论开始（我们要做什么）
2. 让我们使用正确的名称（

   attempt

   而不是

   i

   ）

// Computer pick the number in 1..9 range
int picked = Random.Shared.Next(1, 10);
// We have 4 attempts
int attempts = 4;

// We haven't found the picked number yet
bool found = false;

// for each attempt
for (int attempt = 1; attempt <= attempts; ++attempt) {
  // We are asked to guess
  Console.WriteLine("Please enter a number in 1 .. 9 range:");

  // We do our guess - note, int.TryParse is a better option
  int guess = int.Parse(Console.ReadLine()); 

  // If we guess right then ...
  if (guess == picked) {
    // ... the picked number is found and  
    found = true;
    // we don't want any attempt more
    break; 
  }

  // if we don't guess right, show number of attempts 
  Console.WriteLine($"You have {attempts - attempt + 1} tries left.");
} 

// after all attempts show outcome
if (found)
  Console.WriteLine("You have won!!!!!");
else
  Console.WriteLine("You have lost.");