Csharp/CSharp Tutorial/File Directory Stream/File Properties

Материал из .Net Framework эксперт
Версия от 12:20, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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Get File creation time and extension name

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
class MainClass
{
    static void Main(string[] args)
    {
        string[] files = Directory.GetFiles(@"c:\");
        foreach (string filename in files)
        {
            FileInfo file = new FileInfo(filename);
            Console.WriteLine("{0} created on {1}, and is a {2} file",
                file.Name, file.CreationTime, 
                file.Extension);
        }
    }
}
AUTOEXEC.BAT created on 27/08/2006 10:31:59 PM, and is a .BAT file
boot.ini created on 27/08/2006 3:15:49 PM, and is a .ini file
CONFIG.SYS created on 27/08/2006 10:31:59 PM, and is a .SYS file
hiberfil.sys created on 27/08/2006 11:07:25 PM, and is a .sys file
IO.SYS created on 27/08/2006 10:31:59 PM, and is a .SYS file
MSDOS.SYS created on 27/08/2006 10:31:59 PM, and is a .SYS file
NTDETECT.ru created on 04/08/2004 5:00:00 AM, and is a .ru file
ntldr created on 04/08/2004 5:00:00 AM, and is a  file
pagefile.sys created on 27/08/2006 3:07:15 PM, and is a .sys file
records.bin created on 03/03/2007 4:21:35 PM, and is a .bin file
Test.txt created on 24/03/2007 7:23:12 PM, and is a .txt file
test.xml created on 25/03/2007 2:17:21 PM, and is a .xml file
Testing.txt created on 25/03/2007 2:00:14 PM, and is a .txt file
xmlWriterTest.xml created on 25/03/2007 2:17:33 PM, and is a .xml file

Get FileInfo: file name, file exists, creation time, last write time, last access time

using System;
using System.IO;
class MainClass
{
    public static void Main(string[] args)
    {
        FileInfo file = new FileInfo("c:\\test.txt");
        Console.WriteLine("Checking file: " + file.Name);
        Console.WriteLine("File exists: " + file.Exists.ToString());
        if (file.Exists)
        {
            Console.Write("File created: ");
            Console.WriteLine(file.CreationTime.ToString());
            Console.Write("File last updated: ");
            Console.WriteLine(file.LastWriteTime.ToString());
            Console.Write("File last accessed: ");
            Console.WriteLine(file.LastAccessTime.ToString());
        }
        
    }
}
Checking file: test.txt
File exists: True
File created: 24/03/2007 7:23:12 PM
File last updated: 24/03/2007 7:23:12 PM
File last accessed: 25/03/2007 2:04:13 PM

Get FileInfo: file size, file attribute list

using System;
using System.IO;
class MainClass
{
    public static void Main(string[] args)
    {
        FileInfo file = new FileInfo("c:\\test.txt");
        Console.WriteLine("Checking file: " + file.Name);
        Console.WriteLine("File exists: " + file.Exists.ToString());
        if (file.Exists)
        {
            Console.Write("File size (bytes): ");
            Console.WriteLine(file.Length.ToString());
            Console.Write("File attribute list: ");
            Console.WriteLine(file.Attributes.ToString());
        }
    }
}
Checking file: test.txt
File exists: True
File size (bytes): 0
File attribute list: Archive