怎样用C#读取txt文件

[{"title":"（ 21 个子文件 61KB ） 怎样用C#读取txt文件","children":[{"title":"读取TXT文件","children":[{"title":"读取TXT文件.sln <span style='color:#111;'> 934B </span>","children":null,"spread":false},{"title":"读取TXT文件.suo <span style='color:#111;'> 14.00KB </span>","children":null,"spread":false},{"title":"读取TXT文件","children":[{"title":"Form1.cs <span style='color:#111;'> 8.08KB </span>","children":null,"spread":false},{"title":"bin","children":[{"title":"Debug","children":[{"title":"读取TXT文件.vshost.exe <span style='color:#111;'> 5.50KB </span>","children":null,"spread":false},{"title":"读取TXT文件.pdb <span style='color:#111;'> 29.50KB </span>","children":null,"spread":false},{"title":"读取TXT文件.exe <span style='color:#111;'> 36.00KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"obj","children":[{"title":"读取TXT文件.csproj.FileList.txt <span style='color:#111;'> 324B </span>","children":null,"spread":false},{"title":"Debug","children":[{"title":"读取TXT文件.Properties.Resources.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"读取TXT文件.Form1.resources <span style='color:#111;'> 6.94KB </span>","children":null,"spread":false},{"title":"读取TXT文件.pdb <span style='color:#111;'> 29.50KB </span>","children":null,"spread":false},{"title":"TempPE","children":null,"spread":false},{"title":"读取TXT文件.csproj.GenerateResource.Cache <span style='color:#111;'> 842B </span>","children":null,"spread":false},{"title":"读取TXT文件.exe <span style='color:#111;'> 36.00KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"Properties","children":[{"title":"Resources.Designer.cs <span style='color:#111;'> 2.82KB </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;'> 1.17KB </span>","children":null,"spread":false}],"spread":true},{"title":"Program.cs <span style='color:#111;'> 474B </span>","children":null,"spread":false},{"title":"Form1.Designer.cs <span style='color:#111;'> 21.41KB </span>","children":null,"spread":false},{"title":"Form1.resx <span style='color:#111;'> 15.67KB </span>","children":null,"spread":false},{"title":"读取TXT文件.csproj <span style='color:#111;'> 3.16KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true}]