Create a new folder and a new file using C#

If you need to create a new directory under the folder of program files, how do you know it is in the path of C or D drive? Can you write C# to create a new folder? You can use ExpandEnvironmentVariables to get the path:

public string DataPath = Environment.ExpandEnvironmentVariables(@"%ProgramFiles%\TestData");

If you want to create a new folder , you can use this key word: Directory.

if (!Directory.Exists(DataPath))

{

Directory.CreateDirectory(DataPath);

}

If you want to add a new file, you can use this key word : File

File .Create(DataPath + @"\test.txt");