C# Parse and TryParse 方法详解

工作中遇到的常用方法：

Parse and TryParse

TryParse  方法类似于 Parse 方法，不同之处在于 TryParse 方法在转换失败时不引发异常

  /// <summary>
         /// TryParse  方法类似于 Parse 方法，不同之处在于 TryParse 方法在转换失败时不引发异常
         /// </summary>
         public static void TryParseExample()
         {
             String[] values = { null, "", "9432.0", "16,667", "   -322   ", "+4302", "(100);", "01FA", "ab123" };
             foreach (var value in values)
             {
                 int number;
 
                 bool result = Int32.TryParse(value, out number);
                 if (result)
                 {
                     Console.WriteLine("Converted '{0}' to {1}.", value, number);
                 }
                 else
                 {
                     //            if (value == null) value = "";
                     Console.WriteLine("Attempted conversion of '{0}' failed.",
                                        value == null ? "<null>" : value);
                 }
             }
         }
 
         /// <summary>
         ///
         /// </summary>
         public static void ParseExample()
         {
             String[] values = { null, "", "9432.0", "16,667", "   -322   ", "+4302", "(100);", "01FA", "ab123" };
             foreach (var value in values)
             {
                 try
                 {
                     int result = Int32.Parse(value);
                     Console.WriteLine("Converted '{0}' to {1}.", value, result);
                 }
                 catch (Exception ex)
                 {
                     Console.WriteLine("Unable to convert '{0}'.", value);
                     Console.WriteLine(string.Format("{0}-{1}", ex.Message, ex.GetType()));
                 }
             }
         }