如何向应用程序日志写入自定义信息
................................\WriteApplication
................................\................\WriteApplication
................................\................\................\bin
................................\................\................\...\Debug
................................\................\................\Form1.cs
................................\................\................\Form1.Designer.cs
................................\................\................\Form1.resx
................................\................\................\obj
................................\................\................\...\Debug
................................\................\................\...\WriteApplication.csproj.FileList.txt
................................\................\................\Program.cs
................................\................\................\Properties
................................\................\................\..........\AssemblyInfo.cs
................................\................\................\..........\Resources.Designer.cs
................................\................\................\..........\Resources.resx
................................\................\................\..........\Settings.Designer.cs
................................\................\................\..........\Settings.settings
................................\................\................\WriteApplication.csproj
................................\................\WriteApplication.sln
................................\................\WriteApplication.suo