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?Hotel_Management
{
????public?partial?class?Billquery?:?Form
????{
????????public?Billquery（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?label2_Click（object?sender?EventArgs?e）
????????{

????????}
????????string?strCon?=?@“server=.;database=Hotel?Management;uid=sa;pwd=1@1.com“;
????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
????????????int?money?=0;
??????????????SqlConnection?conn?=?new?SqlConnection（strCon）;
????????????conn.Open（）;
?????????????Date

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-11-23?22:18??Hotel?Management\
?????目錄???????????0??2019-11-23?22:18??Hotel?Management\.vs\
?????目錄???????????0??2019-11-23?22:25??Hotel?Management\.vs\Hotel?Management\
?????目錄???????????0??2019-11-23?22:25??Hotel?Management\.vs\Hotel?Management\DesignTimeBuild\
?????文件?????????250??2019-11-23?22:25??Hotel?Management\.vs\Hotel?Management\DesignTimeBuild\.dtbcache
?????目錄???????????0??2019-11-23?22:19??Hotel?Management\.vs\Hotel?Management\v15\
?????文件??????136192??2019-11-23?22:25??Hotel?Management\.vs\Hotel?Management\v15\.suo
?????目錄???????????0??2019-11-23?22:19??Hotel?Management\.vs\Hotel?Management\v15\Server\
?????目錄???????????0??2019-11-23?22:19??Hotel?Management\.vs\Hotel?Management\v15\Server\sqlite3\
?????文件???????????0??2019-11-23?22:19??Hotel?Management\.vs\Hotel?Management\v15\Server\sqlite3\db.lock
?????文件????????4096??2019-11-23?22:19??Hotel?Management\.vs\Hotel?Management\v15\Server\sqlite3\storage.ide
?????文件???????32768??2019-11-23?22:19??Hotel?Management\.vs\Hotel?Management\v15\Server\sqlite3\storage.ide-shm
?????文件?????1017672??2019-11-23?22:24??Hotel?Management\.vs\Hotel?Management\v15\Server\sqlite3\storage.ide-wal
?????目錄???????????0??2019-11-23?22:24??Hotel?Management\Hotel?Management\
?????文件?????????187??2019-08-03?11:19??Hotel?Management\Hotel?Management\App.config
?????文件????????2573??2019-11-23?22:24??Hotel?Management\Hotel?Management\Billquery.cs
?????文件???????10523??2019-08-12?14:55??Hotel?Management\Hotel?Management\Billquery.designer.cs
?????文件????????7657??2019-08-12?14:55??Hotel?Management\Hotel?Management\Billquery.resx
?????文件???????15861??2019-08-09?17:56??Hotel?Management\Hotel?Management\Continuation.Designer.cs
?????文件????????4600??2019-08-09?17:56??Hotel?Management\Hotel?Management\Continuation.cs
?????文件????????5817??2019-08-09?17:56??Hotel?Management\Hotel?Management\Continuation.resx
?????文件????????1711??2019-11-23?22:21??Hotel?Management\Hotel?Management\DBL.cs
?????文件?????????521??2019-08-11?21:53??Hotel?Management\Hotel?Management\DataHelper.cs
?????文件????????1126??2019-11-23?22:24??Hotel?Management\Hotel?Management\Form1.cs
?????文件????????4604??2019-11-23?22:24??Hotel?Management\Hotel?Management\Form1.designer.cs
?????文件????????6011??2019-11-23?22:24??Hotel?Management\Hotel?Management\Form1.resx
?????文件????????1883??2019-08-13?14:52??Hotel?Management\Hotel?Management\Form2.cs
?????文件????????8172??2019-08-08?16:35??Hotel?Management\Hotel?Management\Form2.designer.cs
?????文件??????111687??2019-08-08?16:35??Hotel?Management\Hotel?Management\Form2.resx
?????文件????????2336??2019-08-08?17:27??Hotel?Management\Hotel?Management\Form3.cs
?????文件????????8756??2019-08-08?17:23??Hotel?Management\Hotel?Management\Form3.designer.cs
............此處省略193個文件信息