水开了

while (true)             {                  Console.Write("烧水不?Y/N:");                  string a = Console.ReadLine();                  if (a =="Y" )                  {                      Console.WriteLine("多少度了");                      for (int i = 1; i <=100; i++)                      {                          //Console.WriteLine("多少度了");                          if (i==30)                          {                              Console.WriteLine("水温了"+i);                          }                          else if (i == 50)                          {                              Console.WriteLine("水热了" + i);                          }                          else if (i == 80)                          {                              Console.WriteLine("水快开了" + i);                          }                          else if (i == 100)                          {                              Console.WriteLine("水开了" + i);                          }                          else                          {                              Console.WriteLine("水" + i+"度");                          }                          Thread.Sleep(600);

}                  }             }