C#获得文件夹下文件名

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); 
}