C# winfrom in the form how to achieve tick checkbox delete pictures

Demo
Demo.sln
....\bin
....\...\Debug
....\...\.....\Demo.exe
....\...\.....\Demo.pdb
....\...\.....\Demo.vshost.exe
....\...\.....\Demo.vshost.exe.manifest
....\Demo.csproj
....\Form1.cs
....\Form1.Designer.cs
....\Form1.resx
....\obj
....\...\x86
....\...\...\Debug
....\...\...\.....\Demo.csproj.FileListAbsolute.txt
....\...\...\.....\Demo.exe
....\...\...\.....\Demo.Form1.resources
....\...\...\.....\Demo.pdb
....\...\...\.....\Demo.Properties.Resources.resources
....\...\...\.....\DesignTimeResolveAssemblyReferencesInput.cache
....\...\...\.....\GenerateResource-ResGen.read.1.tlog
....\...\...\.....\GenerateResource-ResGen.write.1.tlog
....\...\...\.....\TempPE
....\...\...\.....\......\Properties.Resources.Designer.cs.dll
....\Program.cs
....\Properties
....\..........\AssemblyInfo.cs
....\..........\Resources.Designer.cs
....\..........\Resources.resx
....\..........\Settings.Designer.cs
....\..........\Settings.settings
....\Resources
....\.........\你不知道的事.jpg
....\.........\你的温柔.jpg
....\.........\你还好吗.jpg
....\.........\剧终.jpg
....\.........\哭不出来.jpg
....\.........\梦里出现的人.jpg
....\.........\每个女生都有一个公主梦.gif
....\.........\留下回忆.jpg
QQ截图20121126010005.png
QQ截图20121126010023.png

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