1. 创建ASP.NET Core 6.0 MVC项目。

2. 在项目中安装Microsoft.AspNetCore.Identity.EntityFrameworkCore包来添加身份验证支持。

3. 创建一个名为ApplicationUser的类，扩展IdentityUser类：

public class ApplicationUser : IdentityUser
{
}

4. 更新Startup.cs文件来配置身份验证服务：

public void ConfigureServices(IServiceCollection services)
{
    services.AddDbContext(options =>
        options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));

    services.AddIdentity()
        .AddEntityFrameworkStores()
        .AddDefaultTokenProviders();

    services.Configure(options =>
    {
        options.Password.RequireDigit = true;
        options.Password.RequiredLength = 8;
        options.Password.RequireLowercase = true;
        options.Password.RequireNonAlphanumeric = false;
        options.Password.RequireUppercase = true;
    });

    services.ConfigureApplicationCookie(options =>
    {
        options.LoginPath = "/Account/Login";
        options.LogoutPath = "/Account/Logout";
        options.AccessDeniedPath = "/Account/AccessDenied";
    });

    services.AddControllersWithViews();
}

5. 创建一个名为AccountController的控制器，并添加以下操作方法：

public class AccountController : Controller
{
    private readonly SignInManager _signInManager;
    private readonly UserManager _userManager;

    public AccountController(
        UserManager userManager,
        SignInManager signInManager)
    {
        _userManager = userManager;
        _signInManager = signInManager;
    }

    [HttpGet]
    public IActionResult Register()
    {
        return View();
    }

    [HttpPost]
    public async Task Register(RegisterViewModel model)
    {
        if (ModelState.IsValid)
        {
            var user = new ApplicationUser { UserName = model.Email, Email = model.Email };
            var result = await _userManager.CreateAsync(user, model.Password);
            if (result.Succeeded)
            {
                await _signInManager.SignInAsync(user, isPersistent: false);
                return RedirectToAction("Index", "Home");
            }
            foreach (var error in result.Errors)
            {
                ModelState.AddModelError(string.Empty, error.Description);
            }
        }
        return View(model);
    }

    [HttpGet]