动态时钟（双缓冲）
..................\myClock
..................\.......\myClock
..................\.......\.......\bin
..................\.......\.......\...\Debug
..................\.......\.......\...\.....\myClock.exe
..................\.......\.......\...\.....\myClock.pdb
..................\.......\.......\...\.....\myClock.vshost.exe
..................\.......\.......\...\.....\myClock.vshost.exe.manifest
..................\.......\.......\Form1.cs
..................\.......\.......\Form1.Designer.cs
..................\.......\.......\Form1.resx
..................\.......\.......\myClock.csproj
..................\.......\.......\obj
..................\.......\.......\...\Debug
..................\.......\.......\...\.....\myClock.csproj.FileListAbsolute.txt
..................\.......\.......\...\.....\myClock.csproj.GenerateResource.Cache
..................\.......\.......\...\.....\myClock.exe
..................\.......\.......\...\.....\myClock.Form1.resources
..................\.......\.......\...\.....\myClock.pdb
..................\.......\.......\...\.....\myClock.Properties.Resources.resources
..................\.......\.......\...\.....\TempPE
..................\.......\.......\Program.cs
..................\.......\.......\Properties
..................\.......\.......\..........\AssemblyInfo.cs
..................\.......\.......\..........\Resources.Designer.cs
..................\.......\.......\..........\Resources.resx
..................\.......\.......\..........\Settings.Designer.cs
..................\.......\.......\..........\Settings.settings
..................\.......\myClock.sln