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

namespace?Form1
{
????class?CPublic
????{
????????public?static?DataRow?LoginInfo;//保存用戶信息

????????public?static?bool?isManager;//識別用戶身份

????????public?static?void?CheckUsers（string?UserID?string?Pwd）
????????{
????????????SqlConnection?cn?=?new?SqlConnection（Properties.Settings.Default.XKConnectionString）;
????????????SqlDataAdapter?da?=?new?SqlDataAdapter（“SELECT?*?FROM?Users?WHERE?UserID=@UserID?AND?Pwd=@Pwd“?cn）;
????????????da.SelectCommand.Parameters.Add（“@UserID“?SqlDbType.NVarChar?8）.Value?=?UserID;
????????????da.SelectCommand.Parameters.Add（“@Pwd“?SqlDbType.NVarChar?8）.Value?=?Pwd;
????????????DataSet?ds?=?new?DataSet（

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-10-31?15:59??Form1\
?????文件?????????766??2019-10-31?10:51??Form1\4.ico
?????文件????????2164??2019-10-31?11:14??Form1\CPublic.cs
?????文件?????????281??2019-10-31?15:40??Form1\CStudent.cs
?????文件????????3919??2019-10-31?13:32??Form1\EllipseButton.Designer.cs
?????文件????????2243??2019-10-31?13:27??Form1\EllipseButton.cs
?????文件????????5817??2019-10-31?12:48??Form1\EllipseButton.resx
?????文件????????6408??2019-10-31?14:16??Form1\LoginControl.Designer.cs
?????文件????????1744??2019-10-31?14:16??Form1\LoginControl.cs
?????文件???????14260??2019-10-31?14:16??Form1\LoginControl.resx
?????文件?????????593??2019-10-31?14:26??Form1\Program.cs
?????目錄???????????0??2019-10-25?13:44??Form1\Properties\
?????文件????????1393??2019-10-31?10:27??Form1\Properties\AssemblyInfo.cs
?????文件????????2850??2019-10-31?10:38??Form1\Properties\Resources.Designer.cs
?????文件????????5612??2019-10-25?13:44??Form1\Properties\Resources.resx
?????文件????????1681??2019-10-31?10:38??Form1\Properties\Settings.Designer.cs
?????文件?????????972??2019-10-25?14:30??Form1\Properties\Settings.settings
?????文件?????????433??2019-11-07?16:34??Form1\app.config
?????目錄???????????0??2019-10-31?14:17??Form1\bin\
?????目錄???????????0??2019-11-13?13:01??Form1\bin\Debug\
?????文件????????1793??2019-11-20?16:23??Form1\bin\Debug\Form1.application
?????文件??????222208??2019-11-20?16:23??Form1\bin\Debug\Form1.exe
?????文件?????????422??2019-11-26?13:53??Form1\bin\Debug\Form1.exe.config
?????文件????????3814??2019-11-20?16:23??Form1\bin\Debug\Form1.exe.manifest
?????文件??????304640??2019-11-20?16:23??Form1\bin\Debug\Form1.pdb
?????文件????????1793??2019-11-20?16:23??Form1\bin\Debug\Form1.vshost.application
?????文件???????11600??2019-11-26?09:56??Form1\bin\Debug\Form1.vshost.exe
?????文件?????????433??2019-11-07?16:34??Form1\bin\Debug\Form1.vshost.exe.config
?????文件????????3814??2019-11-20?16:23??Form1\bin\Debug\Form1.vshost.exe.manifest
?????文件?????????380??2019-10-25?14:30??Form1\bin\Debug\XK.vshost.exe.config
?????目錄???????????0??2019-10-31?16:00??Form1\bin\Release\
............此處省略144個文件信息