測試一下 namespace PubFunction
{
    ///

    /// DbAccessing 的摘要说明

    ///

    public class DbAccessing : System.Web.UI.Page
    {
        public SqlConnection dbConn;

        ///

        /// 數據連結方法 DbAccessing
        ///

        public DbAccessing()
        {
            setConn();
        }
        ///

        /// 連接config的方法 setConn
        ///

        protected void setConn()
        {
            dbConn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["TestSqlServer"].ConnectionString);
        }
        ///

        /// 連接config的方法 setConns
        ///

        public SqlConnection setConns()
        {
            dbConn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["TestSqlServer"].ConnectionString);
            return dbConn;
        }

       ///

        /// 執行一個SQL語句，ExecuteSql方法 返回bool類型
       ///

       ///
       ///
        public bool ExecuteSql(string strSQL)
        {
            SqlCommand cmd = new SqlCommand(strSQL, dbConn);
            bool returnValue = false;
            try
            {
                if (dbConn.State != ConnectionState.Open)
                    dbConn.Open();
                cmd.ExecuteNonQuery();
                returnValue = true;
            }
            catch (System.Data.SqlClient.SqlException e)
            {
                throw new Exception(e.Message);
            }
            finally
            {
                dbConn.Close();
            }          

            return returnValue;
        }