要获取相对路径,可以使用以下方法:
使用 System.IO.Path.GetRelativePath 方法来获取相对路径。
string relativePath = System.IO.Path.GetRelativePath(basePath, targetPath);使用 System.IO.Path.GetDirectoryName 方法获取目标路径的父目录,然后使用 System.IO.Path.GetRelativePath 方法获取相对路径。
string basePath = @"C:\BaseFolder";string targetPath = @"C:\BaseFolder\SubFolder\file.txt";string relativePath = System.IO.Path.GetRelativePath(System.IO.Path.GetDirectoryName(basePath), targetPath);使用自定义方法来计算相对路径。
public static string GetRelativePath(string fromPath, string toPath){ Uri fromUri = new Uri(fromPath); Uri toUri = new Uri(toPath); Uri relativeUri = fromUri.MakeRelativeUri(toUri); return Uri.UnescapeDataString(relativeUri.ToString());}string basePath = @"C:\BaseFolder";string targetPath = @"C:\BaseFolder\SubFolder\file.txt";string relativePath = GetRelativePath(basePath, targetPath); 

