Popup窗口提醒

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace DropDownForm
{
    public partial class GroundForm : Form
    {
        public GroundForm（）
        {
            InitializeComponent（）;
        }

        private void display_Click（object sender EventArgs e）
        {
            DropDownForm.Instance（）.ShowForm（）;//显示窗体
        }

        private void close_Click（object sender EventArgs e）
        {
            DropDownForm.Instance（）.CloseForm（）;//隐藏窗体
            //关闭窗体
            this.Close（）;
        }
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件         926  2009-01-17 09:12  sj\01\DropDownForm\DropDownForm.sln
     文件       22016  2009-01-19 13:10  sj\01\DropDownForm\DropDownForm.suo
     文件        4409  2009-01-17 16:53  sj\01\DropDownForm\DropDownForm\DropDownForm.csproj
     文件         728  2009-01-19 13:10  sj\01\DropDownForm\DropDownForm\GroundForm.cs
     文件        3414  2009-01-17 15:17  sj\01\DropDownForm\DropDownForm\GroundForm.Designer.cs
     文件        5814  2009-01-17 15:17  sj\01\DropDownForm\DropDownForm\GroundForm.resx
     文件        4765  2009-01-19 13:10  sj\01\DropDownForm\DropDownForm\MainForm.cs
     文件        3809  2009-01-19 13:10  sj\01\DropDownForm\DropDownForm\MainForm.Designer.cs
     文件       10223  2009-01-19 13:10  sj\01\DropDownForm\DropDownForm\MainForm.resx
     文件         499  2009-01-17 11:48  sj\01\DropDownForm\DropDownForm\Program.cs
     文件      190976  2009-01-19 13:10  sj\01\DropDownForm\DropDownForm\bin\Debug\DropDownForm.exe
     文件       34304  2009-01-19 13:10  sj\01\DropDownForm\DropDownForm\bin\Debug\DropDownForm.pdb
     文件       14328  2009-01-19 13:10  sj\01\DropDownForm\DropDownForm\bin\Debug\DropDownForm.vshost.exe
     文件         490  2007-07-21 01:33  sj\01\DropDownForm\DropDownForm\bin\Debug\DropDownForm.vshost.exe.manifest
     文件        1610  2009-01-19 13:10  sj\01\DropDownForm\DropDownForm\obj\Debug\DropDownForm.csproj.FileListAbsolute.txt
     文件        1086  2009-01-19 13:10  sj\01\DropDownForm\DropDownForm\obj\Debug\DropDownForm.csproj.GenerateResource.Cache
     文件        2963  2009-01-19 13:10  sj\01\DropDownForm\DropDownForm\obj\Debug\DropDownForm.DropDownForm.resources
     文件      190976  2009-01-19 13:10  sj\01\DropDownForm\DropDownForm\obj\Debug\DropDownForm.exe
     文件         180  2009-01-19 08:43  sj\01\DropDownForm\DropDownForm\obj\Debug\DropDownForm.GroundForm.resources
     文件       34304  2009-01-19 13:10  sj\01\DropDownForm\DropDownForm\obj\Debug\DropDownForm.pdb
     文件      175904  2009-01-19 08:43  sj\01\DropDownForm\DropDownForm\obj\Debug\DropDownForm.Properties.Resources.resources
     文件        5120  2009-01-17 10:39  sj\01\DropDownForm\DropDownForm\obj\Debug\TempPE\Properties.Resources.Designer.cs.dll
     文件        1356  2009-01-17 09:12  sj\01\DropDownForm\DropDownForm\Properties\AssemblyInfo.cs
     文件        3592  2009-01-17 10:39  sj\01\DropDownForm\DropDownForm\Properties\Resources.Designer.cs
     文件        6673  2009-01-17 10:39  sj\01\DropDownForm\DropDownForm\Properties\Resources.resx
     文件        1097  2009-01-17 09:12  sj\01\DropDownForm\DropDownForm\Properties\Settings.Designer.cs
     文件         249  2009-01-17 09:12  sj\01\DropDownForm\DropDownForm\Properties\Settings.settings
     文件      172646  2009-01-17 10:39  sj\01\DropDownForm\DropDownForm\Resources\1.bmp
     文件        1210  2009-01-17 10:39  sj\01\DropDownForm\DropDownForm\Resources\Close1.bmp
     文件        1210  2009-01-17 10:39  sj\01\DropDownForm\DropDownForm\Resources\Close2.bmp
     文件         941  2008-12-05 13:02  sl\Popup窗口提醒\Popup窗口提醒.sln
............此处省略32个文件信息