C#遍历目录和文件(使用Linq)

 

语言越来越强大，程序员越来越轻松。

1.枚举所有目录中的名称

 

try
            {
                //返回指定路径中与搜索模式匹配的文件名称的可枚举集合，还可以搜索子目录。
                var files = from file in Directory.EnumerateFiles(@"F:/电影/", "*.txt", SearchOption.AllDirectories)
                            from line in File.ReadLines(file)
                            where line.Contains("Microsoft")
                            select new
                            {
                                File=file,
                                Line=line
                            };
                foreach (var f in files)
                {
                    Console.WriteLine("{0}/t{1}", f.File, f.Line);
                }
                Console.WriteLine(files.Count().ToString());
            }

            catch (UnauthorizedAccessException UAEx)
            {
                Console.WriteLine(UAEx.Message);
            }
            catch(PathTooLongException PathEx)
            {
                Console.WriteLine(PathEx.Message);
            }

2.枚举当前目录的目录及其文件

 

  DirectoryInfo Dir = new DirectoryInfo(@"F:/电影");
            var files = from file
                            in Dir.EnumerateFiles()
                            select file;

            foreach (var f in files)
            {
                Console.WriteLine("filename:{0}",f);
            }

            var directory = from dir
                            in Dir.EnumerateDirectories()
                            select dir;
            foreach (var f in directory)
            {
                Console.WriteLine("DirectotyName:{0}", f);
            }

url:http://greatverve.cnblogs.com/archive/2011/07/04/linq-dir-file.html#