小编Ruc*_*ker的帖子

          int MM;
          int DD;
          int YYYY;
          switch(MM)
          {
                case 1:
                   DD = 31;
                   break;
                case 2:
                   DD = 28;
                   LDD = 29;
                   break;
                case 3:
                   DD = 31;
                   break;
                case 4:
                   DD = 30;
                   break;
                case 5:
                   DD = 31;
                   break;
                case 6:
                   DD = 30;
                   break;
                case 7:
                   DD = 31;
                   break;
                case 8:
                   DD = 31;
                   break;
                case 9:
                   DD = 30;
                   break;
                case 10:
                   DD = 31;
                   break;
                case 11:
                   days = 30;
                   break;
                case 12:
                   DD …

//Example 2 - Validate Date for the format MM/DD/YYYY 
private bool ValidateDate(string stringDateValue)
{
   try
   {
       CultureInfo CultureInfoDateCulture = new CultureInfo("en-US");
       DateTime d = DateTime.ParseExact(stringDateValue, "MM/dd/yyyy", CultureInfoDateCulture);
       return true;
   }
   catch
   {
       return false;
   }
 }

如何在不使用try和catch的情况下设置此代码？