问Blazor Server应用程序有问题

EN

@page "/"
@using System.ComponentModel.DataAnnotations
@using System.Security.Cryptography
@using System.Text
@using Microsoft.AspNetCore.Identity

<PageTitle>Login</PageTitle>

<div>

<h1>Welcome back!</h1><br />
<h1>Login here:</h1><br />

<EditForm Model=@login>
    <DataAnnotationsValidator />
    <ValidationSummary />
    <div class="form-group">
        <label for="Username">Username:</label>
        <InputText @bind-Value=@login.user class="form-control" id="Username" />
    </div>
    <div class="form-group">
        <label for="Password">Password:</label>
        <InputText @bind-Value=@login.password class="form-control" id="Password" />
    </div>
    <input type="submit" value="Authenticate" class="btn btn-primary" />
</EditForm><br />

<p>User: @login.user</p>
<p>password: @login.hashedpassword</p>

</div>
@code
{

    public class Login
    {

        [Required]
        public string user = "";
        [Required]
        public string password = "";

        public static string HashString(string input)
        {
            using (SHA512 sha512Hash = SHA512.Create())
            {
                //From String to byte array
                byte[] source = Encoding.UTF8.GetBytes(input);
                byte[] hashbytes = sha512Hash.ComputeHash(source);
                string hashedinput = BitConverter.ToString(hashbytes).Replace("-", String.Empty);
                return hashedinput;
            }    
        }
        public string hashedpassword = HashString(password);
    }
    Login login = new Login();
    
}