using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Data.SqlClient;

namespace?bookstore
{
????class?CONN
????{
????????public?static?SqlConnection?Myconn（）
????????{
????????????return?new?SqlConnection（“Data?Source?=?（local）;?Initial?Catalog?=?BOOKSTORE;?Integrated?Security?=?True;?User?ID?=?sa;?Password?=?123456“）;
????????}
????}
}