c#获取文件夹中的子文件

String path = @"X:\xxx\xxx";

//第一种方法
string[] files = Directory.GetFiles(path, "*.txt");
             
foreach (string 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);
}