如果语句总是传递给else语句

Question

我正在使用c#中的简单密码存储控制台应用程序.

我在一个部分上遇到一些问题,询问用户是否希望屏蔽该点上的所有密码条目.

这是代码部分:

bool tryagain = true;
while(tryagain == true)
{
  Console.WriteLine("Would you like to mask all other password  entiries?(Y,N)");
  string input = Console.ReadLine();
  if (input == "y" | input == "Y")
  //Something wrong, always passes to Your awnser was invalid
  {
      maskpass = true;
      tryagain = false;
  }

  if (input == "n" | input == "N")
  {
      maskpass = false;
      tryagain = false;
  }
  else
  {
      Console.WriteLine("Your awnser was invalid, would you like to try again?");
      string yesno = Console.ReadLine();
      if (yesno == "y" | yesno == "Y")
      {
          tryagain = true;
      }

      if (yesno == "n" | yesno == "N")
      {
          Environment.Exit(0);
      }
  }
}

问题是当我运行代码时,它总是运行到else语句.

我确定这个错误非常简单,我只是无知,但任何人都不知道这里发生了什么？

Answer 1

使用||而不是单一|.该||均值或条件,但单|是二进制或.

我假设您的代码的逻辑说:

if input=='y' OR input=="Y", 做一点事.

还有另一种说法.如果我的假设正确,你可以用简单的String.Equals重载来实现:

if(input.Equals("y", StringComparison.InvariantCultureIgnoreCase)
{
   //do something/
}