c# 递归异步获取本地驱动器下所有文件_.NET_编程开发_程序员俱乐部

class="dp-c" start="1">
1. //获取所有驱动器  
2.            string[] drives = Environment.GetLogicalDrives();  
3.            foreach (string driver in drives)  
4.            {  
5.                Console.WriteLine(driver);  
6.                //驱动器信息  
7.                DriveInfo di = new DriveInfo(driver);  
8.                //是否准备好  
9.                Console.WriteLine("isRead:" + di.IsReady);  
10.                //名称  
11.                Console.WriteLine("name:" + di.Name);  
12.                //驱动器根目录  
13.                DirectoryInfo root = di.RootDirectory;  
14.                RecursiveAsync(root);  
15.                Console.WriteLine();  
16.            }  
17.            Console.ReadKey();  

//方法体

1. private async static void RecursiveAsync(DirectoryInfo root)  
2.        {  
3.            await Task.Run(() =>  
4.            {  
5.                try  
6.                {  
7.                    //得到所有文件  
8.                    FileInfo[] fis = root.GetFiles("*.*");  
9.                    if (fis != null && fis.Length > 0)  
10.                    {  
11.                        foreach (FileInfo fi in fis)  
12.                        {  
13.                            //文件名  
14.                            string name = fi.FullName;  
15.                            name = name.Length > 100 ? name.Substring(0, 100) + "…" : name;  
16.                            Console.WriteLine(name);  
17.                        }  
18.                    }  
19.                    //获取子目录  
20.                    DirectoryInfo[] dis = root.GetDirectories();  
21.                    //存在子目录  
22.                    foreach (DirectoryInfo di in dis)  
23.                    {  
24.                        //递归子目录  
25.                        RecursiveAsync(di);  
26.                    }  
27.                }  
28.                catch (Exception e)  
29.                {  
30.                    Console.WriteLine(e.Message);  
31.                }  
32.            });  
33.        }