C＃相当于Python的os.path.exists（）？

Question

I can use os.path.exists() to check if the file exists or not with Python. What's the equivalent function in C#?

Answer 1

Surely you mean .NET, not C# :)

Try System.IO.File.Exists .

Answer 2

Both System.IO.File and System.IO.Directory has Exists .

bool dirExists = System.IO.Directory.Exists(@"C:\directory\");
bool fileExists = System.IO.File.Exists(@"C:\directory\file.txt");

And for an additional bonus: Note that for cross platform compatibility you should use for example System.IO.Path.Combine("c:", "directory", "file.txt"); . This will automatically join the parts of the directory using System.IO.Path.DirectorySeparatorChar . Of course only Windows has C:, so you need to know what to use as the root of the drive.

Answer 3

System.IO.File.Exists(@"c:\path\to\your\file.ext");