Aladdin

摘要： using System; using System.Data; using System.Xml; using System.Data.SqlClient; using System.Collections; using System.Configuration;namespace BookDAL { /// <summary> /// SqlServer数据访问帮助类 /// </summary> public sealed class SqlHelper { #region 私有构造函数和方法 private SqlHelper() { } /// <sum 阅读全文