base d'un fichier en c#
public class CreateFileOrFolder
{
static void Main()
{
// Specify a name for your top-level folder.
string folderName = @"c:\Top-Level Folder";
// To create a string that specifies the path to a subfolder under your
// top-level folder, add a name for the subfolder to folderName.
string pathString = System.IO.Path.Combine(folderName, "SubFolder");
// You can write out the path name directly instead of using the Combine
// method. Combine just makes the process easier.
string pathString2 = @"c:\Top-Level Folder\SubFolder2";
// You can extend the depth of your path if you want to.
//pathString = System.IO.Path.Combine(pathString, "SubSubFolder");
// Create the subfolder. You can verify in File Explorer that you have this
// structure in the C: drive.
// Local Disk (C:)
// Top-Level Folder
// SubFolder
System.IO.Directory.CreateDirectory(pathString);
// Create a file name for the file you want to create.
string fileName = System.IO.Path.GetRandomFileName();
// This example uses a random string for the name, but you also can specify
// a particular name.
//string fileName = "MyNewFile.txt";
// Use Combine again to add the file name to the path.
pathString = System.IO.Path.Combine(pathString, fileName);
// Verify the path that you have constructed.
Console.WriteLine("Path to my file: {0}\n", pathString);
// Check that the file doesn't already exist. If it doesn't exist, create
// the file and write integers 0 - 99 to it.
// DANGER: System.IO.File.Create will overwrite the file if it already exists.
// This could happen even with random file names, although it is unlikely.
if (!System.IO.File.Exists(pathString))
{
using (System.IO.FileStream fs = System.IO.File.Create(pathString))
{
for (byte i = 0; i < 100; i++)
{
fs.WriteByte(i);
}
}
}
else
{
Console.WriteLine("File \"{0}\" already exists.", fileName);
return;
}
// Read and display the data from your file.
try
{
byte[] readBuffer = System.IO.File.ReadAllBytes(pathString);
foreach (byte b in readBuffer)
{
Console.Write(b + " ");
}
Console.WriteLine();
}
catch (System.IO.IOException e)
{
Console.WriteLine(e.Message);
}
// Keep the console window open in debug mode.
System.Console.WriteLine("Press any key to exit.");
System.Console.ReadKey();
}
// Sample output:
// Path to my file: c:\Top-Level Folder\SubFolder\ttxvauxe.vv0
//0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
//30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56
// 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 8
//3 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
}