一个小巧的列出文件夹下的文件类
using System;
namespace CodeBuilder.Builder
{
class MainClass
{
public static void Main(string[] args)
{
// for(int f = 0; f < 4; f++)
// {
int f = 3;
System.Console.WriteLine("_______________{Begin}_______________");
string folder = System.Console.ReadLine();
FileFilter filter = new FilterFactory().CreateInstance(f);
ListFolder listfolder = new ListFolder(folder,filter);
System.Collections.ArrayList al = listfolder.Files;
if (al != null)
{
for(int i = 0; i < al.Count; i++)
{
System.Console.WriteLine("_____{0}_____",i);
System.Console.WriteLine(al[i]);
}
}
System.Console.WriteLine("_______________{End}_______________");
System.Console.ReadLine();
// }
}
}
public class FilterFactory
{
public FileFilter CreateInstance(int i)
{
switch (i)
{
case 0:
return new WFilter();
case 1:
return new XFilter();
case 2:
return new YFilter();
case 3:
return new ZFilter();
default:
return new FileFilter();
}
}
public FileFilter CreateInstance(string str)
{
switch (str)
{
case ".cs":
return new WFilter();
case ".aspx":
return new XFilter();
case ".aspx.cs":
return new YFilter();
case ".xml":
return new ZFilter();
default:
return new FileFilter();
}
}
}
public class ZFilter:FileFilter
{
public override bool Filter(string filename)
{
return filename.ToLower().EndsWith(".xml");
}
}
public class YFilter:FileFilter
{
public override bool Filter(string filename)
{
return filename.ToLower().EndsWith(".aspx.cs");
}
}
public class XFilter:FileFilter
{
public override bool Filter(string filename)
{
return filename.ToLower().EndsWith(".aspx");
}
}
public class WFilter:FileFilter
{
public override bool Filter(string filename)
{
return filename.ToLower().EndsWith(".cs");
}
}
public class FileFilter
{
public virtual bool Filter(string filename)
{
return true;
}
}
public sealed class ListFolder
{
System.Collections.ArrayList _Files = new System.Collections.ArrayList();
FileFilter filefilter;
public ListFolder(string path, FileFilter filter)
{
this.filefilter = filter;
Folder(path);
}
public System.Collections.ArrayList Files
{
get {return _Files;}
}
void Folder(string path)
{
if (System.IO.File.Exists(path))
{
docase(path);
}
else if (System.IO.Directory.Exists(path))
{
string[] files = new string[0];
files = System.IO.Directory.GetFiles(path);
for(int i = 0 ; i < files.Length; i++)
{
docase(files[i]);
}
string[] folders = System.IO.Directory.GetDirectories(path);
for(int i = 0; i < folders.Length; i++)
{
Folder(folders[i]);
}
}
}
void docase(string path)
{
if (filefilter.Filter(path)) _Files.Add(path);
}
}
}