/// <summary>
 /// 功能:执行普通的SQL语句
 /// </summary>
 public void ExcuteSql(String sql)
 {
     try
     {
         Tb_Project_PersonDA da1 = new Tb_Project_PersonDA();
         da1.ExcuteSql(sql);
     }
     catch (Exception err)
     {
         this.ErrorInfo = err.Message.Replace("\r", "").Replace("\t", "").Replace("\n", "");
     }
 }