自动替换文件内容、文件名、文件夹名

void Main()
{
    var root = @"c:\smartcampus-submodule\zhzp";
    //var extensions = string.Join("," ,getFileExtensions(root));
    //extensions.Dump();
    replaceFilesContent(root, "dygl", "zhzp",".iml,.xml,.txt,.java,.properties,.lst,.json,.yml,.map");
    replaceFileNames(root, "dygl", "zhzp");
    replaceFolderNames(root, "dygl", "zhzp");
}

List<string> getFileExtensions(string folder)
{
    var result = new List<string>();
    var dir = new DirectoryInfo(folder);
    foreach (var file in dir.GetFiles())
    {
        result = result.Union(new List<string> { file.Extension.ToLower() }).ToList();
    }

    foreach (var subDir in dir.GetDirectories())
    {
        result = result.Union(getFileExtensions(subDir.FullName)).ToList();
    }
    
    return result;
}

string replaceContent(string content, string find, string replace)
{
    if(find == "")
        return content;

    var pos = 0;
    while (true)
    {
        pos = content.IndexOf(find, pos, StringComparison.CurrentCultureIgnoreCase);
        if (pos < 0)
            break;

        var reachEnd = pos + find.Length >= content.Length;
        var foundContent = content.Substring(pos, find.Length);
        var destReplace = replace ;
        if (foundContent[0].ToString().ToUpper() == foundContent[0].ToString() && replace.Length > 0)
            destReplace = replace[0].ToString().ToUpper() + replace.Substring(1);
        content = content.Substring(0, pos) + destReplace + (reachEnd ? "" : content.Substring(pos + find.Length));
    }
    
    return content;
}

void replaceFilesContent(string folder, string find, string replace, string extensions)
{
    var exts = extensions.Split(',').ToList();
    var dir = new DirectoryInfo(folder);

    foreach (var file in dir.GetFiles())
    {
        if (!exts.Contains(file.Extension.ToLower()))
            continue;

        var content = File.ReadAllText(file.FullName);
        content = replaceContent(content, find, replace);
        File.WriteAllText(file.FullName, content);
        Console.WriteLine(file.FullName + " content replaced");
    }

    foreach (var subDir in dir.GetDirectories())
    {
        replaceFilesContent(subDir.FullName, find, replace, extensions);
    }
}

void replaceFileNames(string folder, string find, string replace)
{
    var dir = new DirectoryInfo(folder);

    foreach (var file in dir.GetFiles())
    {
        var filename = replaceContent(file.Name, find, replace);
        if(filename != file.Name)
        {
            var old = file.FullName;
            file.MoveTo(file.Directory.FullName + "\\" + filename);
            Console.WriteLine(old + " renamed");
        }
            
    }
    
    foreach (var subDir in dir.GetDirectories())
    {
        replaceFileNames(subDir.FullName,find,replace);
    }
}

void replaceFolderNames(string folder, string find, string replace)
{
    var dir = new DirectoryInfo(folder);

    if (dir.GetDirectories().Count() > 0)
    {
        foreach (var subDir in dir.GetDirectories())
        {
            replaceFolderNames(subDir.FullName, find, replace);
        }
    }
    
    var dirName = replaceContent(dir.Name, find, replace);
    if (dirName != dir.Name)
    {
        var old = dir.FullName;
        dir.MoveTo(dir.Parent.FullName + "\\" + dirName);
        Console.WriteLine(old + " renamed");
    }
}

// Define other methods and classes here