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;

namespace?WindowsFormsApplication3
{
????public?partial?class?find?:?Form
????{
????????public?int?start;
????????Form2?f1;
????????public?find（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?find_Load（object?sender?EventArgs?e）
????????{
????????????start?=?0;
????????????f1?=?（Form2）this.Owner;

????????}
????????
????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
????????????if?（radioButton1.Checked?==?true）?????//如果向下找
????????????{
????????????????if?（checkBox1.Checked）??????????????//如果區分大小寫
????????????????????start?=?f1.richTextBox1.Find（textBox1.Text?start?RichTextBoxFinds.MatchCase）;
????????????????else
????????????????????start?=?f1.richTextBox1.Find（textBox1.Text?start?RichTextBoxFinds.None）;
????????????????if?（start?==?-1）????????????????????//如果返回值是-1，表示沒找到
????????????????{
????????????????????MessageBox.Show（“已查找到文檔的結尾“?“查找結束對話框“）;
????????????????????start?=?0;
????????????????}
????????????????else???????????????????????????????????????????????????????????????????????????????//查找到
????????????????{
????????????????????start?=?start?+?textBox1.Text.Length;//設置下一查找位置wl
????????????????????if?（start?>=?f1.richTextBox1.Text.Length）
????????????????????{
????????????????????????MessageBox.Show（“已查找到文檔的結尾“?“查找結束對話框“）;
????????????????????????start?=?0;
????????????????????}
????????????????}
????????????}

????????????if?（radioButton2.Checked?==?true）??????????//如果向上找
????????????{
????????????????if?（checkBox1.Checked）
????????????????????start?=?f1.richTextBox1.Find（textBox1.Text?0?start?RichTextBoxFinds.MatchCase?|?RichTextBoxFinds.Reverse）;
????????????????else
????????????????????start?=?f1.richTextBox1.Find（textBox1.Text?0?start?RichTextBoxFinds.Reverse）;
????????????????if?（start?==?-1?||?start?==?0）?????????????//如果返回值是-1，表示沒找到
????????????????{
????????????????????MessageBox.Show（“已查找到文檔的開頭“?“查找結束對話框“）;
????????????????????start?=?f1.richTextBox1.Text.Length;
????????????????}
????????????}

????????}

????????private?void?button2_Click（object?sender?EventArgs?e）
????????{
????????????this.Close（）;
????????}
????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????189??2020-12-24?18:30??WindowsFormsApplication3\App.config

?????文件??????70656??2020-12-28?19:17??WindowsFormsApplication3\bin\Debug\WindowsFormsApplication3.exe

?????文件????????189??2020-12-24?18:30??WindowsFormsApplication3\bin\Debug\WindowsFormsApplication3.exe.config

?????文件??????52736??2020-12-28?19:17??WindowsFormsApplication3\bin\Debug\WindowsFormsApplication3.pdb

?????文件??????22696??2020-12-28?19:24??WindowsFormsApplication3\bin\Debug\WindowsFormsApplication3.vshost.exe

?????文件????????189??2020-12-24?18:30??WindowsFormsApplication3\bin\Debug\WindowsFormsApplication3.vshost.exe.config

?????文件????????490??2015-06-04?12:48??WindowsFormsApplication3\bin\Debug\WindowsFormsApplication3.vshost.exe.manifest

?????文件???????1101??2020-12-27?15:59??WindowsFormsApplication3\CommandMode\ComboboxIndexChangedCommand.cs

?????文件????????264??2020-12-27?15:59??WindowsFormsApplication3\CommandMode\Command.cs

?????文件????????940??2020-12-27?16:11??WindowsFormsApplication3\CommandMode\TextChangedCommand.cs

?????文件???????2634??2020-12-28?19:11??WindowsFormsApplication3\find.cs

?????文件???????6752??2020-12-28?19:11??WindowsFormsApplication3\find.Designer.cs

?????文件???????5817??2020-12-28?19:11??WindowsFormsApplication3\find.resx

?????文件???????4880??2020-12-28?17:01??WindowsFormsApplication3\Form1.cs

?????文件???????6582??2020-12-28?17:01??WindowsFormsApplication3\Form1.Designer.cs

?????文件??????70236??2020-12-27?16:31??WindowsFormsApplication3\Form1.resx

?????文件???????7765??2020-12-28?19:17??WindowsFormsApplication3\Form2.cs

?????文件??????24640??2020-12-28?19:17??WindowsFormsApplication3\Form2.Designer.cs

?????文件???????7219??2020-12-28?19:17??WindowsFormsApplication3\Form2.resx

?????文件???????1464??2020-12-25?15:55??WindowsFormsApplication3\obj\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件???????7442??2020-12-28?17:01??WindowsFormsApplication3\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件??????????0??2020-12-24?18:30??WindowsFormsApplication3\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs

?????文件??????????0??2020-12-24?18:30??WindowsFormsApplication3\obj\Debug\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs

?????文件??????????0??2020-12-24?18:30??WindowsFormsApplication3\obj\Debug\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs

?????文件???????1789??2020-12-28?19:24??WindowsFormsApplication3\obj\Debug\WindowsFormsApplication3.csproj.FileListAbsolute.txt

?????文件???????1186??2020-12-28?19:17??WindowsFormsApplication3\obj\Debug\WindowsFormsApplication3.csproj.GenerateResource.Cache

?????文件???????2384??2020-12-24?18:43??WindowsFormsApplication3\obj\Debug\WindowsFormsApplication3.csprojResolveAssemblyReference.cache

?????文件??????70656??2020-12-28?19:17??WindowsFormsApplication3\obj\Debug\WindowsFormsApplication3.exe

?????文件????????180??2020-12-28?19:11??WindowsFormsApplication3\obj\Debug\WindowsFormsApplication3.find.resources

?????文件??????43231??2020-12-28?17:01??WindowsFormsApplication3\obj\Debug\WindowsFormsApplication3.Form1.resources

............此處省略23個文件信息