C#查看文件目录操作、复制、替换 

  1 class Program
  2     {
  3         static void Main(string[] args)
  4         {
  5             List<FileInfo> lst = new List<FileInfo>();
  6             string strPath = @"E:\aaa";
  7             List<FileInfo> lstFiles = getFile(strPath, ".aspx", lst);
  8             foreach (FileInfo shpFile in lstFiles)
  9             {
 10                 string aspxFile="";
 11                 aspxFile += shpFile.FullName + "\n";
 12                 DirectoryInfo di = new DirectoryInfo("E:/bbb");
 13                 DirectoryInfo di2 = new DirectoryInfo("E:/ccc");
 14                 CopyFilesRecursively(di,di2);  //复制目录文件到新文件夹
 15                 //DeleteFolder("E:/syjd_bak/abc"); //删除文件目录
 16                   DeleteBaiDuShangQiaoJStream("E:/ccc/myfile.txt"); //替换目录文件夹内容
 17                
 18 
 19             }
 20         }
 21 
 22         //删除文件目录
 23         public static void DeleteFolder(string dir)
 24         {
 25             if (Directory.Exists(dir))
 26             {
 27                 foreach (string d in Directory.GetFileSystemEntries(dir))
 28                 {
 29                     if (File.Exists(d))
 30                         File.Delete(d);
 31                     else
 32                         DeleteFolder(d);
 33                 }
 34                 Directory.Delete(dir, true);
 35 
 36             }
 37         }
 38         //复制文件到其它目录
 39         private static void CopyFilesRecursively(DirectoryInfo source, DirectoryInfo target)
 40         {
 41             foreach (DirectoryInfo dir in source.GetDirectories())
 42             {
 43                 CopyFilesRecursively(dir, target.CreateSubdirectory(dir.Name));
 44             }
 45 
 46             foreach (FileInfo file in source.GetFiles())
 47             {
 48                 file.CopyTo(Path.Combine(target.FullName, file.Name), true);
 49             }
 50         }
 51         //替换文件相关内容
 52         private static void DeleteBaiDuShangQiaoJStream(string FilePath)
 53         {
 54             string _html = "";
 55             //打开文件流
 56             FileStream file = new FileStream(FilePath, FileMode.Open, FileAccess.Read);
 57             //获取输出流
 58             StreamReader sr = new StreamReader(file);
 59             //读取文件所有内容并转为字符串
 60             _html = sr.ReadToEnd();
 61             //释放资源
 62             sr.Dispose();
 63             file.Dispose();
 64             //通过正则匹配，删除百度商桥的相关JS文件
 65             _html = _html.Replace(@"Windows 7", @"Windows 2007");
 66             //覆盖文件流
 67             file = new FileStream(FilePath, FileMode.Truncate, FileAccess.Write);
 68             //获取输入流
 69             StreamWriter sw = new StreamWriter(file);
 70             //覆盖
 71             sw.WriteLine(_html);
 72             //释放资源
 73             sw.Dispose();
 74             file.Dispose();
 75         }
 76         //显示当前目录下的所有文件
 77         public static List<FileInfo> getFile(string path, string extName, List<FileInfo> lst)
 78         {
 79             try
 80             {
 81 
 82                 string[] dir = Directory.GetDirectories(path); //文件夹列表  
 83                 DirectoryInfo fdir = new DirectoryInfo(path);
 84                 FileInfo[] file = fdir.GetFiles();
 85                 //FileInfo[] file = Directory.GetFiles(path); //文件列表  
 86                 if (file.Length != 0 || dir.Length != 0) //当前目录文件或文件夹不为空          
 87                 {
 88                     foreach (FileInfo f in file) //显示当前目录所有文件  
 89                     {
 90                         if (extName.ToLower().IndexOf(f.Extension.ToLower()) >= 0)
 91                         {
 92                             lst.Add(f);
 93                         }
 94                     }
 95                     foreach (string d in dir)
 96                     {
 97                         getFile(d, extName, lst);//递归  
 98                     }
 99                 }
100                 return lst;
101             }
102             catch (Exception ex)
103             {
104                 throw ex;
105             }
106         }
107     }

 

posted @ 2020-01-15 17:40  温故余学  阅读(1626)  评论(0)  编辑  收藏  举报