您可以使用File。行动起来吧。

没有一个答案提到编写一个单元可测试的解决方案。您可以使用system . io . abstractions，因为它为文件系统操作提供了可测试的包装，您可以使用它创建模拟文件系统对象并编写单元测试。

using System.IO.Abstractions;

IFileInfo fileInfo = _fileSystem.FileInfo.FromFileName("filePathAndName");
fileInfo.MoveTo(Path.Combine(fileInfo.DirectoryName, newName));

它已经过测试，它正在重命名文件的工作代码。

First solution Avoid System.IO.File.Move solutions posted here (marked answer included). It fails over networks. However, copy/delete pattern works locally and over networks. Follow one of the move solutions, but replace it with Copy instead. Then use File.Delete to delete the original file. You can create a Rename method to simplify it. Ease of use Use the VB assembly in C#. Add reference to Microsoft.VisualBasic Then to rename the file: Microsoft.VisualBasic.FileIO.FileSystem.RenameFile(myfile, newName); Both are strings. Note that myfile has the full path. newName does not. For example: a = "C:\whatever\a.txt"; b = "b.txt"; Microsoft.VisualBasic.FileIO.FileSystem.RenameFile(a, b); The C:\whatever\ folder will now contain b.txt.

你可以将它复制为一个新文件，然后使用System.IO.File类删除旧文件:

if (File.Exists(oldName))
{
    File.Copy(oldName, newName, true);
    File.Delete(oldName);
}

// Source file to be renamed  
string sourceFile = @"C:\Temp\MaheshChand.jpg";  
// Create a FileInfo  
System.IO.FileInfo fi = new System.IO.FileInfo(sourceFile);  
// Check if file is there  
if (fi.Exists)  
{  
// Move file with a new name. Hence renamed.  
fi.MoveTo(@"C:\Temp\Mahesh.jpg");  
Console.WriteLine("File Renamed.");  
}  

看一下System.IO.File。移动，“移动”文件到一个新名称。

System.IO.File.Move("oldfilename", "newfilename");