.NET的异常处理的几个误区

  catch(Exception e)  
  {  
      throw e;  
  }   网管下载dl.bitscn.com 

      public int GetAllCount2()  
      {  
          try  
          {  
              openDB();  
              int i = 1;  
              return i;  
          }  
          catch (SqlException sex)  
          {  
              throw sex;  
          }  
          catch (Exception ex)  
          {  
              throw ex;  
          }  
      }  
      public int GetAllCount()  
      {  
          openDB(); // 这里也可能是微软企业类库等  
          int i = 1;  
          return i;  
      }  
    
      private void openDB()  
      {  
          conn.Open();  
      }   
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