File 使用c语言比较两条路径获得重复路径#_File_C# 4.0

File 使用c语言比较两条路径获得重复路径#

file c#-4.0

File 使用c语言比较两条路径获得重复路径#,file,c#-4.0,File,C# 4.0,我有两个文件路径例如：路径1C:\Users\Me\FileFolder\File1.info 路径2C:\Users\Me\FileFolder\DirectoryContent\Content1\File.info 我想创建一个方法来提取重复路径：结果C:\Users\Me\FileFolder 有没有办法做到这一点？或者如何实现？可以使用String.Split方法和Enumerable.TakeWhile var part1 = path1.Split(Path.Directory

我有两个文件路径

例如：

路径1

C:\Users\Me\FileFolder\File1.info

路径2

C:\Users\Me\FileFolder\DirectoryContent\Content1\File.info

我想创建一个方法来提取重复路径：

结果

C:\Users\Me\FileFolder

有没有办法做到这一点？或者如何实现？

可以使用

String.Split

方法和

Enumerable.TakeWhile

var part1 = path1.Split(Path.DirectorySeparatorChar);
var part2 = path2.Split(Path.DirectorySeparatorChar);

var commonParts = part1.TakeWhile((x,idx) => idx < part2.Length && part2[idx] == x);

if (commonParts.Any())
{
     var result = string.Join(Path.DirectorySeparatorChar.ToString(), commonParts);
}

var part1=path1.Split（Path.directoryseportorchar）；
var part2=path2.Split（Path.directoryseportorchar）；
var commonParts=part1.TakeWhile（（x，idx）=>idx


可以使用String.Split
方法和Enumerable.TakeWhile

var part1 = path1.Split(Path.DirectorySeparatorChar);
var part2 = path2.Split(Path.DirectorySeparatorChar);

var commonParts = part1.TakeWhile((x,idx) => idx < part2.Length && part2[idx] == x);

if (commonParts.Any())
{
     var result = string.Join(Path.DirectorySeparatorChar.ToString(), commonParts);
}

var part1=path1.Split（Path.directoryseportorchar）；
var part2=path2.Split（Path.directoryseportorchar）；
var commonParts=part1.TakeWhile（（x，idx）=>idx

可以使用String.Split
方法和Enumerable.TakeWhile

var part1 = path1.Split(Path.DirectorySeparatorChar);
var part2 = path2.Split(Path.DirectorySeparatorChar);

var commonParts = part1.TakeWhile((x,idx) => idx < part2.Length && part2[idx] == x);

if (commonParts.Any())
{
     var result = string.Join(Path.DirectorySeparatorChar.ToString(), commonParts);
}

var part1=path1.Split（Path.directoryseportorchar）；
var part2=path2.Split（Path.directoryseportorchar）；
var commonParts=part1.TakeWhile（（x，idx）=>idx

可以使用String.Split
方法和Enumerable.TakeWhile

var part1 = path1.Split(Path.DirectorySeparatorChar);
var part2 = path2.Split(Path.DirectorySeparatorChar);

var commonParts = part1.TakeWhile((x,idx) => idx < part2.Length && part2[idx] == x);

if (commonParts.Any())
{
     var result = string.Join(Path.DirectorySeparatorChar.ToString(), commonParts);
}

var part1=path1.Split（Path.directoryseportorchar）；
var part2=path2.Split（Path.directoryseportorchar）；
var commonParts=part1.TakeWhile（（x，idx）=>idx

我假设您要查找所有公用文件夹，因此，如果要查找从这两个文件夹共享的路径，请尝试以下操作：
string path1 = @"C:\Users\Me\FileFolder\File1.info";
string path2 = @"C:\Users\Me\FileFolder\DirectoryContent\Content1\File.info";

string root1 = Path.GetPathRoot(path1);
string root2 = Path.GetPathRoot(path2);

if (root1.Equals(root2, StringComparison.InvariantCultureIgnoreCase))
{
    string[] folders1 = path1.Split(Path.DirectorySeparatorChar);
    string[] folders2 = path2.Split(Path.DirectorySeparatorChar);
    var commonFolders = folders1.TakeWhile((dir, index) => 
        folders2.Length > index &&
        dir.Equals(folders2[index], StringComparison.InvariantCultureIgnoreCase));
    string commonFolderPath = string.Format("{0}{1}"
        , root1
        , Path.Combine(commonFolders.Skip(1).ToArray())); // Skip(1) skips root
    Console.Write(commonFolderPath);
}

结果：C:\Users\Me\FileFolder
我假设您要查找所有公用文件夹，因此从这两个文件夹共享的路径，请尝试以下操作：
string path1 = @"C:\Users\Me\FileFolder\File1.info";
string path2 = @"C:\Users\Me\FileFolder\DirectoryContent\Content1\File.info";

string root1 = Path.GetPathRoot(path1);
string root2 = Path.GetPathRoot(path2);

if (root1.Equals(root2, StringComparison.InvariantCultureIgnoreCase))
{
    string[] folders1 = path1.Split(Path.DirectorySeparatorChar);
    string[] folders2 = path2.Split(Path.DirectorySeparatorChar);
    var commonFolders = folders1.TakeWhile((dir, index) => 
        folders2.Length > index &&
        dir.Equals(folders2[index], StringComparison.InvariantCultureIgnoreCase));
    string commonFolderPath = string.Format("{0}{1}"
        , root1
        , Path.Combine(commonFolders.Skip(1).ToArray())); // Skip(1) skips root
    Console.Write(commonFolderPath);
}

结果：C:\Users\Me\FileFolder
我假设您要查找所有公用文件夹，因此从这两个文件夹共享的路径，请尝试以下操作：
string path1 = @"C:\Users\Me\FileFolder\File1.info";
string path2 = @"C:\Users\Me\FileFolder\DirectoryContent\Content1\File.info";

string root1 = Path.GetPathRoot(path1);
string root2 = Path.GetPathRoot(path2);

if (root1.Equals(root2, StringComparison.InvariantCultureIgnoreCase))
{
    string[] folders1 = path1.Split(Path.DirectorySeparatorChar);
    string[] folders2 = path2.Split(Path.DirectorySeparatorChar);
    var commonFolders = folders1.TakeWhile((dir, index) => 
        folders2.Length > index &&
        dir.Equals(folders2[index], StringComparison.InvariantCultureIgnoreCase));
    string commonFolderPath = string.Format("{0}{1}"
        , root1
        , Path.Combine(commonFolders.Skip(1).ToArray())); // Skip(1) skips root
    Console.Write(commonFolderPath);
}

结果：C:\Users\Me\FileFolder
我假设您要查找所有公用文件夹，因此从这两个文件夹共享的路径，请尝试以下操作：
string path1 = @"C:\Users\Me\FileFolder\File1.info";
string path2 = @"C:\Users\Me\FileFolder\DirectoryContent\Content1\File.info";

string root1 = Path.GetPathRoot(path1);
string root2 = Path.GetPathRoot(path2);

if (root1.Equals(root2, StringComparison.InvariantCultureIgnoreCase))
{
    string[] folders1 = path1.Split(Path.DirectorySeparatorChar);
    string[] folders2 = path2.Split(Path.DirectorySeparatorChar);
    var commonFolders = folders1.TakeWhile((dir, index) => 
        folders2.Length > index &&
        dir.Equals(folders2[index], StringComparison.InvariantCultureIgnoreCase));
    string commonFolderPath = string.Format("{0}{1}"
        , root1
        , Path.Combine(commonFolders.Skip(1).ToArray())); // Skip(1) skips root
    Console.Write(commonFolderPath);
}

结果：C:\Users\Me\FileFolder
替代方法是使用Zip
和TakeWhile
（由Selman22建议）
Selman22的示例略有更改
string path1 = @"C:\Users\Me\FileFolder\File1.info";
string path2 = @"C:\Users\Me\FileFolder\DirectoryContent\Content1\File.info";
string[] part1 = path1.Split(Path.DirectorySeparatorChar);
string[] part2 = path2.Split(Path.DirectorySeparatorChar);
string[] commonParts = part1.Zip(part2, (p1, p2) => p1 == p2 ? p1 : null)
                            .TakeWhile(s => s != null)
                            .ToArray();
string commonPath = string.Join(Path.DirectorySeparatorChar.ToString(), commonParts);

string path1 = @"C:\Users\Me\FileFolder\File1.info";
string path2 = @"C:\Users\Me\FileFolder\DirectoryContent\Content1\File.info";
string[] part1 = path1.Split(Path.DirectorySeparatorChar);
string[] part2 = path2.Split(Path.DirectorySeparatorChar);
string[] commonParts = Enumerable.Range(0, Math.Min(part1.Length, part2.Length))
                                 .TakeWhile(i => part1[i] == part2[i])
                                 .Select(i => part1[i])
                                 .ToArray();
string commonPath = string.Join(Path.DirectorySeparatorChar.ToString(), commonParts);

另一种方法是使用Zip
和TakeWhile
（由Selman22建议）
Selman22的示例略有更改
string path1 = @"C:\Users\Me\FileFolder\File1.info";
string path2 = @"C:\Users\Me\FileFolder\DirectoryContent\Content1\File.info";
string[] part1 = path1.Split(Path.DirectorySeparatorChar);
string[] part2 = path2.Split(Path.DirectorySeparatorChar);
string[] commonParts = part1.Zip(part2, (p1, p2) => p1 == p2 ? p1 : null)
                            .TakeWhile(s => s != null)
                            .ToArray();
string commonPath = string.Join(Path.DirectorySeparatorChar.ToString(), commonParts);

string path1 = @"C:\Users\Me\FileFolder\File1.info";
string path2 = @"C:\Users\Me\FileFolder\DirectoryContent\Content1\File.info";
string[] part1 = path1.Split(Path.DirectorySeparatorChar);
string[] part2 = path2.Split(Path.DirectorySeparatorChar);
string[] commonParts = Enumerable.Range(0, Math.Min(part1.Length, part2.Length))
                                 .TakeWhile(i => part1[i] == part2[i])
                                 .Select(i => part1[i])
                                 .ToArray();
string commonPath = string.Join(Path.DirectorySeparatorChar.ToString(), commonParts);

另一种方法是使用Zip
和TakeWhile
（由Selman22建议）
Selman22的示例略有更改
string path1 = @"C:\Users\Me\FileFolder\File1.info";
string path2 = @"C:\Users\Me\FileFolder\DirectoryContent\Content1\File.info";
string[] part1 = path1.Split(Path.DirectorySeparatorChar);
string[] part2 = path2.Split(Path.DirectorySeparatorChar);
string[] commonParts = part1.Zip(part2, (p1, p2) => p1 == p2 ? p1 : null)
                            .TakeWhile(s => s != null)
                            .ToArray();
string commonPath = string.Join(Path.DirectorySeparatorChar.ToString(), commonParts);

string path1 = @"C:\Users\Me\FileFolder\File1.info";
string path2 = @"C:\Users\Me\FileFolder\DirectoryContent\Content1\File.info";
string[] part1 = path1.Split(Path.DirectorySeparatorChar);
string[] part2 = path2.Split(Path.DirectorySeparatorChar);
string[] commonParts = Enumerable.Range(0, Math.Min(part1.Length, part2.Length))
                                 .TakeWhile(i => part1[i] == part2[i])
                                 .Select(i => part1[i])
                                 .ToArray();
string commonPath = string.Join(Path.DirectorySeparatorChar.ToString(), commonParts);

另一种方法是使用Zip
和TakeWhile
（由Selman22建议）
Selman22的示例略有更改
string path1 = @"C:\Users\Me\FileFolder\File1.info";
string path2 = @"C:\Users\Me\FileFolder\DirectoryContent\Content1\File.info";
string[] part1 = path1.Split(Path.DirectorySeparatorChar);
string[] part2 = path2.Split(Path.DirectorySeparatorChar);
string[] commonParts = part1.Zip(part2, (p1, p2) => p1 == p2 ? p1 : null)
                            .TakeWhile(s => s != null)
                            .ToArray();
string commonPath = string.Join(Path.DirectorySeparatorChar.ToString(), commonParts);

string path1 = @"C:\Users\Me\FileFolder\File1.info";
string path2 = @"C:\Users\Me\FileFolder\DirectoryContent\Content1\File.info";
string[] part1 = path1.Split(Path.DirectorySeparatorChar);
string[] part2 = path2.Split(Path.DirectorySeparatorChar);
string[] commonParts = Enumerable.Range(0, Math.Min(part1.Length, part2.Length))
                                 .TakeWhile(i => part1[i] == part2[i])
                                 .Select(i => part1[i])
                                 .ToArray();
string commonPath = string.Join(Path.DirectorySeparatorChar.ToString(), commonParts);

使用Path
类，例如Path.Combine
和Path.directorysepartorchar
@TimSchmelter是的，使用Path类更好，但是Steve是对的，Path.Combine没有添加第一个反斜杠，我不知道为什么。它可能与根文件夹中的冒号有关（C:）使用Path
类，例如Path.Combine
和Path.directorysepartorchar
@TimSchmelter是的，使用Path类更好，但是Steve是对的，Path.Combine没有添加第一个反斜杠，我不知道为什么。它可能与根文件夹中的冒号有关（C:）使用Path
类，例如Path.Combine
和Path.directorysepartorchar
@TimSchmelter是的，使用Path类更好，但是Steve是对的，Path.Combine没有添加第一个反斜杠，我不知道为什么。它可能与根文件夹中的冒号有关（C:）使用Path
类，例如Path.Combine
和Path.directorysepartorchar
@TimSchmelter是的，使用Path类更好，但是Steve是对的，Path.Combine没有添加第一个反斜杠，我不知道为什么。它可能与根文件夹中的冒号有关（C:）