String path = @"X:\xxx\xxx";//第一种方法var files = Directory.GetFiles(path, "*.txt"); foreach (var file in files) Console.WriteLine(file);//第二种方法DirectoryInfo folder = new DirectoryInfo(path); foreach (FileInfo file in folder.GetFiles("*.txt")){ Console.WriteLine(file.FullName);}原文：https://www.cnblogs.com/aliHong/p/8847619.html