將文件複製到指定路徑[C# 文件操作]

將現有文件複製到新文件，不允許改寫現有文件。[C#] public FileInfo CopyTo(string);

將現有文件複製到新文件，允許改寫現有文件。[C#] public FileInfo CopyTo(string, bool);
[C#]  將文件複製到指定路徑，允許改寫同名的目標文件 COPY
using System;
using System.IO;

class Test
{
    public static void Main()
    {
        string path = @"c:/temp/MyTest.txt";
        string path2 = path + "temp";

        try
        {
            // Create the file and clean up handles.
            using (FileStream fs = File.Create(path)) {}

            // Ensure that the target does not exist.
            File.Delete(path2);

            // Copy the file.
            File.Copy(path, path2);
            Console.WriteLine("{0} copied to {1}", path, path2);

            // Try to copy the same file again, which should succeed.
            File.Copy(path, path2, true);
            Console.WriteLine("The second Copy operation succeeded, which was expected.");
        }

        catch
        {
            Console.WriteLine("Double copy is not allowed, which was not expected.");
        }
    }
}
[C#]  COPY TO
using System;
using System.IO;

class Test
{
        public static void Main()
    {
        string path = @"c:/temp/MyTest.txt";
        string path2 = @"c:/temp/MyTest.txt" + "temp";
        FileInfo fi1 = new FileInfo(path);
        FileInfo fi2 = new FileInfo(path2);

        try
        {
            // Create the file and clean up handles.
            using (FileStream fs = fi1.Create()) {}

            //Ensure that the target does not exist.
            fi2.Delete();

            //Copy the file.
            fi1.CopyTo(path2);
            Console.WriteLine("{0} was copied to {1}.", path, path2);

            //Try to copy it again, which should succeed.
            fi1.CopyTo(path2, true);

            Console.WriteLine("The second Copy operation succeeded, which is expected.");

        }
        catch
        {
            Console.WriteLine("Double copying was not allowed, which is not expected.");
        }
    }
}

 

若要執行此操作... 請參見本主題中的示例...
創建文本文件。 向文件寫入文本 
寫入文本文件。 向文件寫入文本 
讀取文本文件。 從文件讀取文本 
向文件中追加文本。 打開並附加到日誌文件
File.AppendText

FileInfo.AppendText
 
重命名或移動文件。 File.Move
FileInfo.MoveTo
 
刪除文件。 File.Delete
FileInfo.Delete
 
複製文件。 File.Copy
FileInfo.CopyTo
 
獲取文件大小。 FileInfo.Length 
獲取文件屬性。 File.GetAttributes 
設置文件屬性。 File.SetAttributes 
確定文件是否存在。 File.Exists 
讀取二進制文件。 對剛創建的數據文件進行讀取和寫入 
寫入二進制文件。 對剛創建的數據文件進行讀取和寫入 
檢索文件擴展名。 Path.GetExtension 
檢索文件的完全限定路徑。 Path.GetFullPath 
檢索路徑中的文件名和擴展名。 Path.GetFileName 
更改文件擴展名。 Path.ChangeExtension 

Progress 類的使用
private void CopyWithProgress(string[] filenames)
{
    // Display the ProgressBar control.
    pBar1.Visible = true;
    // Set Minimum to 1 to represent the first file being copied.
    pBar1.Minimum = 1;
    // Set Maximum to the total number of files to copy.
    pBar1.Maximum = filenames.Length;
    // Set the initial value of the ProgressBar.
    pBar1.Value = 1;
    // Set the Step property to a value of 1 to represent each file

being copied.
    pBar1.Step = 1;
                // Loop through all files to copy.
    for (int x = 1; x <= filenames.Length; x++)
    {
        // Copy the file and increment the ProgressBar if successful.
        if(CopyFile(filenames[x-1]) == true)
        {
            // Perform the increment on the ProgressBar.
            pBar1.PerformStep();
        }
    }
}

 

本文來自CSDN博客，轉載請標明出處：http://blog.csdn.net/CRSUN/archive/2005/01/01/236726.aspx