一,微软SQLHelper.cs类 中文版: using System; using System.Data; using System.Xml; using System.Data.SqlClient; using System.Collections; namespace Classbao.Data { /// <summary> /// SqlServer数据访问帮助类 /// </summary> public sealed partial class SqlHelper…
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Configuration; using System.Data; using System.Data.SqlClient; using System.Xml; using System.Collections; namespace LiuYanBanT { public class SqlHelper…
using System; using System.Data; using System.Xml; using System.Data.SqlClient; using System.Collections; using System.Configuration; //微软SQLHelper.cs类 中文版 namespace Sales.DAL { /// <summary> /// SqlServer数据访问帮助类 /// </summary> public sealed c…
自用SqlHelper.cs类,此类来自软谋教育徐老师课程SqlHelper.cs! using System; using System.Collections; using System.Collections.Generic; using System.Configuration; using System.Data; using System.Data.SqlClient; using System.Linq; using System.Web; namespace PROJECT201…
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…
转载自:http://blog.csdn.net/fengqingtao2008/article/details/17399247 using System; using System.Data; using System.Xml; using System.Data.SqlClient; using System.Collections; using System.Configuration; namespace BookDAL { /// <summary> /// SqlServer数据…
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…
数据库连接字符串//Data Source=.;Initial Catalog=Test1;User Id=sa;Password=123456; public static class SqlHelper { public static readonly string connstr = ConfigurationManager.ConnectionStrings["connstr"].ConnectionString; public static SqlConnection Ope…
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks; namespace 数据库的读取{ using System.Data; using System.Data.SqlClient; class SQLHelper { static string sqlconn = System.Configuration.Configura…
using System; using System.Collections.Generic; using System.Configuration; using System.Data; using System.Data.SqlClient; using System.Linq; using System.Text; using System.Threading.Tasks; namespace DAL { class SqlHelper { //获取字符串 static string co…
public class SqlHlper { public static readonly string constr = ConfigurationManager.ConnectionStrings["constr"].ConnectionString; //执行增删改 public static object ExecuteNonQuery(string sql, params SqlParameter[] pms)//SqlParameter需要调用Data.SqlClient…
这是sqlHelper.cs类,类内里封装了方法 using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Data; using System.Data.SqlClient; using System.Configuration; /// <summary> ///sqlHelper 的摘要说明 /// </summary> public cl…
相信对于继承和多态的概念性我就不在怎么解释啦!不管你是.Net还是Java面向对象编程都是比不缺少一堂课~~Net如此Java亦也有同样的思想成分包含其中. 继承,多态,封装是Java面向对象的3大特征. 继承 如果用.Net写一个A类继承B类的话,写法会是大致如下: Public Class A : B{ ....... } Java的话却要通过extends关键字在声明类的时候指定其父类(基类),所以上面的.Net写法要转换成Java的话应该是下面的样子: Public clas A ext…