using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Threading.Tasks;
using?System.Windows.Forms;
using?System.Data.SqlClient;

namespace?StudentSystem
{
????public?partial?class?Login?:?Form
????{
????????static?public?string?managename;
????????static?public?Login?lo;
????????public?Login（）
????????{
????????????InitializeComponent（）;
????????????lo?=?this;
????????}

????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
????????????int?flag?=?0;
????????????string?username?=?textBox1.Text.Trim（）;
????????????string?password?=?textBox2.Text.Trim（）;
????????????SqlConnection?conn?=?new?SqlConnection（“Data?Source=.;Initial?Catalog=StudentSystem;User?ID=sa;P

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-11-21?11:26??StudentSystem-master\
?????目錄???????????0??2018-09-19?13:42??StudentSystem-master\學生管理系統\
?????目錄???????????0??2018-09-19?13:42??StudentSystem-master\學生管理系統\.vs\
?????目錄???????????0??2018-09-19?13:42??StudentSystem-master\學生管理系統\.vs\StudentSystem\
?????目錄???????????0??2018-09-19?13:42??StudentSystem-master\學生管理系統\.vs\StudentSystem\DesignTimeBuild\
?????文件?????????174??2018-09-19?13:42??StudentSystem-master\學生管理系統\.vs\StudentSystem\DesignTimeBuild\.dtbcache
?????目錄???????????0??2018-09-19?13:42??StudentSystem-master\學生管理系統\.vs\StudentSystem\v15\
?????文件???????31232??2018-09-19?13:42??StudentSystem-master\學生管理系統\.vs\StudentSystem\v15\.suo
?????目錄???????????0??2018-09-19?13:42??StudentSystem-master\學生管理系統\.vs\StudentSystem\v15\Server\
?????目錄???????????0??2018-09-19?13:42??StudentSystem-master\學生管理系統\.vs\StudentSystem\v15\Server\sqlite3\
?????文件???????????0??2018-09-19?13:42??StudentSystem-master\學生管理系統\.vs\StudentSystem\v15\Server\sqlite3\db.lock
?????文件????????4096??2018-09-19?13:42??StudentSystem-master\學生管理系統\.vs\StudentSystem\v15\Server\sqlite3\storage.ide
?????文件???????32768??2018-09-19?13:42??StudentSystem-master\學生管理系統\.vs\StudentSystem\v15\Server\sqlite3\storage.ide-shm
?????文件??????659232??2018-09-19?13:42??StudentSystem-master\學生管理系統\.vs\StudentSystem\v15\Server\sqlite3\storage.ide-wal
?????目錄???????????0??2019-11-20?16:43??StudentSystem-master\學生管理系統\.vs\StudentSystem\v16\
?????文件???????73216??2019-11-20?20:01??StudentSystem-master\學生管理系統\.vs\StudentSystem\v16\.suo
?????目錄???????????0??2019-11-20?16:43??StudentSystem-master\學生管理系統\.vs\StudentSystem\v16\Server\
?????目錄???????????0??2019-11-20?20:01??StudentSystem-master\學生管理系統\.vs\StudentSystem\v16\Server\sqlite3\
?????文件???????????0??2019-11-20?16:43??StudentSystem-master\學生管理系統\.vs\StudentSystem\v16\Server\sqlite3\db.lock
?????文件??????569344??2019-11-20?20:00??StudentSystem-master\學生管理系統\.vs\StudentSystem\v16\Server\sqlite3\storage.ide
?????目錄???????????0??2019-11-20?20:00??StudentSystem-master\學生管理系統\StudentSystem\
?????文件?????????861??2018-09-19?13:42??StudentSystem-master\學生管理系統\StudentSystem.sln
?????文件???????26112??2018-09-19?13:42??StudentSystem-master\學生管理系統\StudentSystem.suo
?????目錄???????????0??2018-09-19?13:42??StudentSystem-master\學生管理系統\StudentSystem\bin\
?????目錄???????????0??2018-09-19?13:42??StudentSystem-master\學生管理系統\StudentSystem\bin\Debug\
?????文件???????34304??2019-11-20?20:00??StudentSystem-master\學生管理系統\StudentSystem\bin\Debug\StudentSystem.exe
?????文件???????54784??2019-11-20?20:00??StudentSystem-master\學生管理系統\StudentSystem\bin\Debug\StudentSystem.pdb
?????文件???????11600??2018-09-19?13:42??StudentSystem-master\學生管理系統\StudentSystem\bin\Debug\StudentSystem.vshost.exe
?????文件????????2882??2019-11-20?16:45??StudentSystem-master\學生管理系統\StudentSystem\Login.cs
?????文件????????7141??2019-11-20?16:45??StudentSystem-master\學生管理系統\StudentSystem\Login.Designer.cs
?????文件????????5817??2019-11-20?16:45??StudentSystem-master\學生管理系統\StudentSystem\Login.resx
............此處省略37個文件信息