C#(去掉txt文件中的所有空格)，控制台程序源码

[{"title":"（ 16 个子文件 24KB ） C#(去掉txt文件中的所有空格)，控制台程序源码","children":[{"title":"File_Operation","children":[{"title":".vs","children":[{"title":"File_Operation","children":[{"title":"v16","children":[{"title":".suo <span style='color:#111;'> 38.00KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true},{"title":"File_Operation.sln <span style='color:#111;'> 1.12KB </span>","children":null,"spread":false},{"title":"File_Operation","children":[{"title":"bin","children":[{"title":"Debug","children":[{"title":"File_Operation.exe <span style='color:#111;'> 5.00KB </span>","children":null,"spread":false},{"title":"File_Operation.pdb <span style='color:#111;'> 21.50KB </span>","children":null,"spread":false},{"title":"File_Operation.exe.config <span style='color:#111;'> 189B </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"Program.cs <span style='color:#111;'> 1.46KB </span>","children":null,"spread":false},{"title":"obj","children":[{"title":"Debug","children":[{"title":"File_Operation.csprojAssemblyReference.cache <span style='color:#111;'> 424B </span>","children":null,"spread":false},{"title":"File_Operation.exe <span style='color:#111;'> 5.00KB </span>","children":null,"spread":false},{"title":"File_Operation.csproj.FileListAbsolute.txt <span style='color:#111;'> 592B </span>","children":null,"spread":false},{"title":"File_Operation.pdb <span style='color:#111;'> 21.50KB </span>","children":null,"spread":false},{"title":"DesignTimeResolveAssemblyReferencesInput.cache <span style='color:#111;'> 6.61KB </span>","children":null,"spread":false},{"title":"File_Operation.csproj.CoreCompileInputs.cache <span style='color:#111;'> 42B </span>","children":null,"spread":false},{"title":"TempPE","children":null,"spread":false},{"title":".NETFramework,Version=v4.7.2.AssemblyAttributes.cs <span style='color:#111;'> 214B </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"File_Operation.csproj <span style='color:#111;'> 2.32KB </span>","children":null,"spread":false},{"title":"App.config <span style='color:#111;'> 189B </span>","children":null,"spread":false},{"title":"Properties","children":[{"title":"AssemblyInfo.cs <span style='color:#111;'> 1.29KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true}],"spread":true}]