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

namespace?WindowsFormsApplication51
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{
????????????this.dataGridView1.DataSource?=?dtshowdata（）;

????????}
????????string?strcon?=?@“Provider=Microsoft.Jet.OLEDB.4.0;Data?Source=da.mdb“;
????????string?strsql?=?“select?*?from?data1“;
????????private?DataTable?dtshowdata（）
????????{
????????????OleDbConnection?con?=?new?OleDbConnection（strcon）;
????????????OleDbCommand?cmd?=?new?OleDbCommand（strsql?con）;
????????????con.Open（）;
????????????OleDbDataAdapter?da?=?new?OleDbDataAdapter（cmd）;
????????????DataTable?dt?=?new?DataTable（

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2020-06-05?19:03??datagriview統計做統計\
?????目錄???????????0??2019-10-27?19:45??datagriview統計做統計\.vs\
?????目錄???????????0??2019-10-27?19:45??datagriview統計做統計\.vs\WindowsFormsApplication51\
?????目錄???????????0??2019-10-27?19:45??datagriview統計做統計\.vs\WindowsFormsApplication51\v14\
?????文件???????46592??2020-06-22?13:45??datagriview統計做統計\.vs\WindowsFormsApplication51\v14\.suo
?????目錄???????????0??2020-06-05?19:03??datagriview統計做統計\WindowsFormsApplication51\
?????文件?????????189??2019-08-30?19:27??datagriview統計做統計\WindowsFormsApplication51\App.config
?????文件????????7801??2019-08-30?21:55??datagriview統計做統計\WindowsFormsApplication51\Form1.Designer.cs
?????文件????????3930??2019-08-30?21:57??datagriview統計做統計\WindowsFormsApplication51\Form1.cs
?????文件????????5817??2019-08-30?21:55??datagriview統計做統計\WindowsFormsApplication51\Form1.resx
?????文件?????????537??2019-08-30?19:27??datagriview統計做統計\WindowsFormsApplication51\Program.cs
?????目錄???????????0??2020-06-05?19:03??datagriview統計做統計\WindowsFormsApplication51\Properties\
?????文件????????1358??2019-08-30?19:27??datagriview統計做統計\WindowsFormsApplication51\Properties\AssemblyInfo.cs
?????文件????????2863??2019-08-30?19:27??datagriview統計做統計\WindowsFormsApplication51\Properties\Resources.Designer.cs
?????文件????????5612??2019-08-30?19:27??datagriview統計做統計\WindowsFormsApplication51\Properties\Resources.resx
?????文件????????1112??2019-08-30?19:27??datagriview統計做統計\WindowsFormsApplication51\Properties\Settings.Designer.cs
?????文件?????????249??2019-08-30?19:27??datagriview統計做統計\WindowsFormsApplication51\Properties\Settings.settings
?????文件????????3948??2019-08-30?19:38??datagriview統計做統計\WindowsFormsApplication51\WindowsFormsApplication51.csproj
?????目錄???????????0??2020-06-05?19:03??datagriview統計做統計\WindowsFormsApplication51\bin\
?????目錄???????????0??2020-06-22?13:41??datagriview統計做統計\WindowsFormsApplication51\bin\Debug\
?????文件???????13312??2019-08-30?21:57??datagriview統計做統計\WindowsFormsApplication51\bin\Debug\WindowsFormsApplication51.exe
?????文件?????????189??2019-08-30?19:27??datagriview統計做統計\WindowsFormsApplication51\bin\Debug\WindowsFormsApplication51.exe.config
?????文件???????24064??2019-08-30?21:57??datagriview統計做統計\WindowsFormsApplication51\bin\Debug\WindowsFormsApplication51.pdb
?????文件???????22696??2020-06-22?13:44??datagriview統計做統計\WindowsFormsApplication51\bin\Debug\WindowsFormsApplication51.vshost.exe
?????文件?????????189??2019-08-30?19:27??datagriview統計做統計\WindowsFormsApplication51\bin\Debug\WindowsFormsApplication51.vshost.exe.config
?????文件?????????490??2018-02-19?20:12??datagriview統計做統計\WindowsFormsApplication51\bin\Debug\WindowsFormsApplication51.vshost.exe.manifest
?????文件??????327680??2019-09-22?09:58??datagriview統計做統計\WindowsFormsApplication51\bin\Debug\da.mdb
?????目錄???????????0??2020-06-05?19:03??datagriview統計做統計\WindowsFormsApplication51\obj\
?????目錄???????????0??2020-06-22?13:44??datagriview統計做統計\WindowsFormsApplication51\obj\Debug\
?????文件????????1464??2020-06-22?13:44??datagriview統計做統計\WindowsFormsApplication51\obj\Debug\DesignTimeResolveAssemblyReferences.cache
?????文件????????7256??2020-06-22?13:43??datagriview統計做統計\WindowsFormsApplication51\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
............此處省略12個文件信息