string baseDirectory = AppContext.BaseDirectory;

var assemblyLocation = Assembly.GetExecutingAssembly().Location;
var assemblyDirectory = Path.GetDirectoryName(assemblyLocation);

string currentDirectory = Directory.GetCurrentDirectory();

// 在Startup.cs或控制器中
public class HomeController : Controller
{
    private readonly IWebHostEnvironment _env;
    
    public HomeController(IWebHostEnvironment env)
    {
        _env = env;
    }
    
    public IActionResult PathInfo()
    {
        var contentRootPath = _env.ContentRootPath;
        var webRootPath = _env.WebRootPath;
        
        return Json(new { contentRootPath, webRootPath });
    }
}

// 常用特殊文件夾路徑
var appData = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
var localAppData = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
var myDocuments = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
var desktop = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);

var systemTempPath = Path.GetTempPath();

var appTempPath = Path.Combine(Path.GetTempPath(), "MyApp");
if (!Directory.Exists(appTempPath))
{
    Directory.CreateDirectory(appTempPath);
}

var tempFileName = Path.GetTempFileName();
// 使用后記得刪除
File.Delete(tempFileName);

string path = folder + "\\subfolder\\file.txt";

string path = Path.Combine(folder, "subfolder", "file.txt");

// 將路徑中的分隔符統(tǒng)一為當(dāng)前平臺(tái)的正確形式
string normalizedPath = Path.GetFullPath(path);

bool isPathRooted = Path.IsPathRooted(path);
bool isPathFullyQualified = Path.IsPathFullyQualified(path);

// 檢查是否運(yùn)行在容器中
bool isInContainer = Environment.GetEnvironmentVariable("DOTNET_RUNNING_IN_CONTAINER") == "true";
// 容器中的路徑處理
var dataPath = isInContainer 
    ? "/app/data" 
    : Path.Combine(Environment.CurrentDirectory, "data");

var configPath = Path.Combine(AppContext.BaseDirectory, "config.json");

// 使用StringComparison.OrdinalIgnoreCase比較路徑
bool pathsEqual = path1.Equals(path2, StringComparison.OrdinalIgnoreCase);

// 確保訪問(wèn)的文件在允許的目錄內(nèi)
public static string SecurePathCombine(string basePath, string relativePath)
{
    var fullPath = Path.GetFullPath(Path.Combine(basePath, relativePath));
    if (!fullPath.StartsWith(basePath))
    {
        throw new SecurityException("Attempted directory traversal attack");
    }
    return fullPath;
}

// 檢查是否以單文件形式發(fā)布
var isSingleFile = Assembly.GetEntryAssembly()?.Location.Contains("apphost.dll") ?? false;

// 獲取單文件發(fā)布時(shí)的解壓目錄
var extractionPath = isSingleFile 
    ? Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString())
    : AppContext.BaseDirectory;

// 獲取Azure網(wǎng)站的主目錄
var homePath = Environment.GetEnvironmentVariable("HOME");
if (!string.IsNullOrEmpty(homePath))
{
    var sitePath = Path.Combine(homePath, "site");
}

// Lambda環(huán)境中的臨時(shí)存儲(chǔ)路徑
var lambdaTempPath = Path.Combine(Path.GetTempPath(), "tmp");

public static class PathExtensions
{
    public static string EnsureTrailingSlash(this string path)
    {
        return path.EndsWith(Path.DirectorySeparatorChar.ToString()) 
            ? path 
            : path + Path.DirectorySeparatorChar;
    }
    
    public static string ToCrossPlatformPath(this string windowsPath)
    {
        return windowsPath.Replace('\\', Path.DirectorySeparatorChar);
    }
}