北大青鸟s1ktv1.rar

c#KTV，包括数据库。就这么个KTV要什么这么详细的描述，不知道写什么了，懂的都懂，不懂的也看不懂

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data.SqlClient;
using System.Data;

namespace WindowsFormsApplication2
{
    class Connection
    {
        private static string sqlConnection = “Data Source=.;Initial Catalog=TrainOfChina;Integrated Security=True“; 
        private SqlConnection connection;

        public SqlConnection Connection1
        {
            get { 
                if（connection==null）
                {
                    connection = new SqlConnection（sqlConnection）;
                }
                return connection;
            }
        }
        public void OpenConnection（）
        {
            if（Connection1.State==ConnectionState.Closed）
            {
                Connection1.Open（）; 
            }
            else if（Connection1.State==ConnectionState.Broken） 
            {
                Connection1.Close（）; 
                Connection1.Open（）;
            }
        }
        public void CloseConnection（）
        { 
            if（Connection1.State==ConnectionState.Open||Connection1.State==ConnectionState.Broken）
            {
                Connection1.Close（）;
            }
        }
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件    5242880  2020-04-13 12:14  ktv1\Employee.mdf

     文件    2097152  2020-04-13 12:14  ktv1\Employee_log.ldf

     文件        217  2020-04-13 10:07  ktv1\SQLQuery1.sql

     文件        187  2020-04-13 09:14  ktv1\WindowsFormsApplication2\App.config

     文件      17408  2020-04-13 10:55  ktv1\WindowsFormsApplication2\bin\Debug\LhtFromtest.exe

     文件        187  2020-04-13 09:14  ktv1\WindowsFormsApplication2\bin\Debug\LhtFromtest.exe.config

     文件      40448  2020-04-13 10:55  ktv1\WindowsFormsApplication2\bin\Debug\LhtFromtest.pdb

     文件      22984  2020-04-26 17:26  ktv1\WindowsFormsApplication2\bin\Debug\LhtFromtest.vshost.exe

     文件        187  2020-04-13 09:14  ktv1\WindowsFormsApplication2\bin\Debug\LhtFromtest.vshost.exe.config

     文件        490  2019-03-19 12:46  ktv1\WindowsFormsApplication2\bin\Debug\LhtFromtest.vshost.exe.manifest

     文件       1285  2020-04-13 12:10  ktv1\WindowsFormsApplication2\Connection.cs

     文件        748  2020-04-13 12:16  ktv1\WindowsFormsApplication2\Form1.cs

     文件       5047  2020-04-13 12:17  ktv1\WindowsFormsApplication2\Form1.Designer.cs

     文件       6015  2020-04-13 09:35  ktv1\WindowsFormsApplication2\Form1.resx

     文件       3869  2020-04-13 12:17  ktv1\WindowsFormsApplication2\Form2.cs

     文件      11411  2020-04-13 12:16  ktv1\WindowsFormsApplication2\Form2.Designer.cs

     文件       5817  2020-04-13 10:42  ktv1\WindowsFormsApplication2\Form2.resx

     文件        863  2020-04-13 12:17  ktv1\WindowsFormsApplication2\obj\Debug\DesignTimeResolveAssemblyReferences.cache

     文件       6991  2020-04-26 17:26  ktv1\WindowsFormsApplication2\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件        196  2020-04-13 11:37  ktv1\WindowsFormsApplication2\obj\Debug\JS.csproj.FileListAbsolute.txt

     文件       1362  2020-04-13 11:21  ktv1\WindowsFormsApplication2\obj\Debug\LhtFromtest.csproj.FileListAbsolute.txt

     文件       1057  2020-04-13 10:42  ktv1\WindowsFormsApplication2\obj\Debug\LhtFromtest.csproj.GenerateResource.Cache

     文件       2211  2020-04-13 09:35  ktv1\WindowsFormsApplication2\obj\Debug\LhtFromtest.csprojResolveAssemblyReference.cache

     文件      17408  2020-04-13 10:55  ktv1\WindowsFormsApplication2\obj\Debug\LhtFromtest.exe

     文件        180  2020-04-13 10:42  ktv1\WindowsFormsApplication2\obj\Debug\LhtFromtest.frmAddEmployee.resources

     文件        180  2020-04-13 10:05  ktv1\WindowsFormsApplication2\obj\Debug\LhtFromtest.frmEmployeeSysMain.resources

     文件      40448  2020-04-13 10:55  ktv1\WindowsFormsApplication2\obj\Debug\LhtFromtest.pdb

     文件        180  2020-04-13 10:05  ktv1\WindowsFormsApplication2\obj\Debug\LhtFromtest.Properties.Resources.resources

     文件          0  2020-04-13 09:14  ktv1\WindowsFormsApplication2\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs

     文件          0  2020-04-13 09:14  ktv1\WindowsFormsApplication2\obj\Debug\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs

............此处省略26个文件信息