GZDBHelper中ExecuteDataReader方法,执行SQL语句，并返回指定对象集合

/// <summary>
/// 执行SQL语句，并返回指定对象集合
/// </summary>
/// <typeparam name="T">要返回的对象类型</typeparam>
/// <param name="sql">SQL语句</param>
/// <param name="parameters">查询参数</param>
/// <param name="action">转换委托</param>
/// <returns></returns>
List<T> ExecuteDataReader<T>(string sql, IDbParms parameters, Func<DbDataReader, T> action);

/// <summary>
/// 执行SQL语句，委托处理结果
/// </summary>
/// <param name="sql">SQL语句</param>
/// <param name="parameters">查询参数</param>
/// <param name="action">处理委托</param>
void ExecuteDataReader(string sql, IDbParms parameters, Action<DbDataReader> action);