asp.net高级教程（三）-实战篇

asp.net高级教程（三）-实战篇(9)                     bExists = true ;
                }
                else
                {
                    bExists = false ;
                }

                myReader.Close() ;
                myConn.Close() ;
                
            }
            catch(SQLException e)        //如果出现异常
            {

                throw(new Exception("数据库异常:" + e.Message)) ;
                
            }                    

            //返回结果
            return bExists ;