DbHelper-SQL数据库访问助手

using System; using System.Data; using System.Data.SqlClient; namespace Whir.Software.Framework.Ultimate { /// <summary> ///     数据库访问助手 /// </summary> public class DbHelper { #region 判断连接是否成功 /// <summary> ///     判断连接是否成功！ /// &lt;/summ