如何在C＃中为帐户中创建持久字典？

Question

我不知道该怎么做，所以我所有的代码基本上都是来自AI的，但是我需要制作一个可以让几个人登录的程序。我想通过一部词典来完成此操作，该字典在关闭程序后无法清除自己。我不知道我在做什么错或如何正确执行此操作，并使其也通过其他形式起作用。

public class PersistentDictionary
{
    private readonly string _filePath;

    public PersistentDictionary(string filePath)
    {
        _filePath = filePath;
    }

    public void Save(Dictionary<string, string> createdAccounts)
    {
        var json = JsonSerializer.Serialize(createdAccounts);
        File.WriteAllText(_filePath, json);
    }

    public Dictionary<string, string> Load()
    {
        if (!File.Exists(_filePath))
        {
            return new Dictionary<string, string>();
        }

        var json = File.ReadAllText(_filePath);
        return JsonSerializer.Deserialize<Dictionary<string, string>>(json);
    }
}

public void submitbtn_Click(object sender, EventArgs e)
{

    string userName = userNametxt.Text;
    string password = passwordtxt.Text;
    string reType = retypetxt.Text;

    var filePath = "persistentDictionary.json";
    var persistentDictionary = new PersistentDictionary(filePath);

    var createdAccounts = new Dictionary<string, string>();

    persistentDictionary.Save(createdAccounts);

    //Load dictionary from file
    var loadedDictionary = persistentDictionary.Load();

    //Modify entries
    if (password == reType & password == "/^(?=[^a-z]*[a-z])(?=[^A-Z]*[A-Z])(?=\\D*\\d)(?=[^!#%]*[!#%])[A-Za-z0-9!#%]{8,32}$/")
        createdAccounts.Add(userName, password);
        persistentDictionary.Save(createdAccounts);


    userNametxt.Clear();
    passwordtxt.Clear();
    retypetxt.Clear();
}

well，您加载之前的任何现有文件。此代码

Answer 1

var createdAccounts = new Dictionary<string, string>();
persistentDictionary.Save(createdAccounts);

创建新的词典并将其写入碟片。但是，您应该做的是首先加载现有文件，然后执行实际逻辑，一旦完成后，将其保存回文件。

毕竟，这应该做到：

var filePath = "persistentDictionary.json";
var persistentDictionary = new PersistentDictionary(filePath);

//Load dictionary from file
var loadedDictionary = persistentDictionary.Load();

//Modify entries
if (password == reType & password == "/^(?=[^a-z]*[a-z])(?=[^A-Z]*[A-Z])(?=\\D*\\d)(?=[^!#%]*[!#%])[A-Za-z0-9!#%]{8,32}$/")
    createdAccounts.Add(userName, password);
    persistentDictionary.Save(createdAccounts);