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

namespace?BLL
{
????public?class?UsersBll
????{
????????UsersDal?Dal?=?new?UsersDal（）;
????????public?DataTable?Login（string?Name?string?Pwd）
????????{
????????????return?Dal.Login（Name?Pwd）;
????????}
????????public?bool?IsName（string?Name）
????????{
????????????return?Dal.IsName（Name）;
????????}
????????public?bool?IsPwd（int?Id?string?Pwd）
????????{
????????????return?Dal.IsPwd（Id?Pwd）;
????????}
????????public?int?Count?{?get?{?return?Dal.Count;?}?}
????????public?DataTable?GetList（int?page?int?pagesize?string?filter?=?“1>0“?string?sort?=?“CreateTime?desc“）
????????{
????????????return?Dal.GetList（page?pagesize?filter?sort）;
????????}
????????public?DataTable?Select（string?filter?=?“1>0“?string?fields?=?“*“）
????????{
????????????return?Dal.Select（filter?fields）;
????????}
????????public?bool?Insert（string?Name?string?Pwd?string?Grade?=?“用戶“?int?Lvl?=?0）
????????{
????????????return?Dal.Insert（Name?Pwd?Grade?Lvl）?>?0???true?:?false;
????????}
????????public?bool?Update（int?Id?string?Pwd）
????????{
????????????return?Dal.Update（Id?Pwd）?>?0???true?:?false;
????????}
????????public?bool?Update（int?Id?int?Lvl）
????????{
????????????return?Dal.Update（Id?Lvl）?>?0???true?:?false;
????????}
????????public?bool?Delete（int?Id）
????????{
????????????return?Dal.Delete（Id）?>?0???true?:?false;
????????}
????}
}