可以通过下列代码示例修改ASP.NET Core 6的身份验证页面。首先，创建一个Layout视图，并在添加的视图中将身份验证服务与ASP.NET Core身份验证中间件一起配置：

Layout视图：

    
    
    


    

        
    
    

        @RenderBody()
    

    

Startup.cs文件：

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

    services.AddDefaultIdentity()
        .AddEntityFrameworkStores();

    services.AddControllersWithViews();
    services.AddRazorPages();

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

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    app.UseDeveloperExceptionPage();
    app.UseHttpsRedirection();

    app.UseRouting();

    app.UseAuthentication();
    app.UseAuthorization();

    app.UseEndpoints(endpoints =>
    {
        endpoints.MapControllerRoute(
            name: "default",
            pattern: "{controller=Home}/{action=Index}/{id?}");
        endpoints.MapRazorPages();
    });
}

接下来，创建一个覆盖默认视图的视图文件，并在视图文件中自定义你的身份验证页面：

@{
    ViewData["Title"] = "登录";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

@ViewData["Title"]


    
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