内容查找，根据指定的文件夹查找包含指定内容的文件（C#源码）

[{"title":"（22个子文件41KB）内容查找，根据指定的文件夹查找包含指定内容的文件（C#源码）","children":[{"title":"FindTextDemo","children":[{"title":"FindTextDemo.suo <span style='color:#111;'>15.00KB</span>","children":null,"spread":false},{"title":"FindTextDemo.sln <span style='color:#111;'>926B</span>","children":null,"spread":false},{"title":"FindTextDemo","children":[{"title":"bin","children":[{"title":"Debug","children":[{"title":"FindTextDemo.vshost.exe.manifest <span style='color:#111;'>490B</span>","children":null,"spread":false},{"title":"FindTextDemo.exe <span style='color:#111;'>11.00KB</span>","children":null,"spread":false},{"title":"FindTextDemo.vshost.exe <span style='color:#111;'>13.99KB</span>","children":null,"spread":false},{"title":"FindTextDemo.pdb <span style='color:#111;'>29.50KB</span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"obj","children":[{"title":"Debug","children":[{"title":"FindTextDemo.exe <span style='color:#111;'>11.00KB</span>","children":null,"spread":false},{"title":"FindTextDemo.csproj.GenerateResource.Cache <span style='color:#111;'>908B</span>","children":null,"spread":false},{"title":"FindTextDemo.Properties.Resources.resources <span style='color:#111;'>180B</span>","children":null,"spread":false},{"title":"FindTextDemo.pdb <span style='color:#111;'>29.50KB</span>","children":null,"spread":false},{"title":"Refactor","children":null,"spread":false},{"title":"FindTextDemo.csproj.FileListAbsolute.txt <span style='color:#111;'>1.44KB</span>","children":null,"spread":false},{"title":"TempPE","children":null,"spread":false},{"title":"FindTextDemo.MainForm.resources <span style='color:#111;'>180B</span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"Properties","children":[{"title":"Resources.Designer.cs <span style='color:#111;'>2.81KB</span>","children":null,"spread":false},{"title":"Settings.settings <span style='color:#111;'>249B</span>","children":null,"spread":false},{"title":"Resources.resx <span style='color:#111;'>5.48KB</span>","children":null,"spread":false},{"title":"Settings.Designer.cs <span style='color:#111;'>1.07KB</span>","children":null,"spread":false},{"title":"AssemblyInfo.cs <span style='color:#111;'>1.35KB</span>","children":null,"spread":false}],"spread":true},{"title":"Program.cs <span style='color:#111;'>496B</span>","children":null,"spread":false},{"title":"FindTextDemo.csproj <span style='color:#111;'>3.66KB</span>","children":null,"spread":false},{"title":"MainForm.resx <span style='color:#111;'>5.88KB</span>","children":null,"spread":false},{"title":"MainForm.cs <span style='color:#111;'>3.10KB</span>","children":null,"spread":false},{"title":"MainForm.Designer.cs <span style='color:#111;'>8.08KB</span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true}]