奇進偶不進

奇進偶不進解釋

代碼

 1 public class IsopsephyNumber
 2     {
 3         private double value = 0.0;
 4         private bool isFlag = false;
 5         /// <summary>
 6         /// 奇進偶不進
 7         /// </summary>
 8         public void JiNumInAndOuNunOut()
 9         {
10             while (true)
11             {
12                 string numberStr = Console.ReadLine();
13                 if (!string.IsNullOrEmpty(numberStr) && numberStr.Trim().ToLower().Equals("exit"))
14                 {
15                     break;
16                 }
17                 JudgeNumber(numberStr, out value, out isFlag);
18                 if (isFlag)
19                 {
20                     double result = Math.Round(value, 3, MidpointRounding.ToEven);
21                     Console.WriteLine("結果：" + result + ":" + value);
22                 }
23             }
24         }
25 
26         private static void JudgeNumber(string numberStr, out double value, out bool isFlag)
27         {
28             value = 0.0;
29             isFlag = double.TryParse(numberStr, out value);
30         }
31     }

效果