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1. 1.会话管理核心类

csharp复制
public class SessionManager
{private string _currentSessionId;private readonly string _workspacePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "todu");public void InitWorkspace(){if (!Directory.Exists(_workspacePath))Directory.CreateDirectory(_workspacePath);}public string CreateNewSession(){var sessionId = Guid.NewGuid().ToString("N");File.WriteAllText(GetSessionFilePath(sessionId), "[]");return sessionId;}public void SwitchSession(string sessionId){_currentSessionId = sessionId;if (!File.Exists(GetSessionFilePath(sessionId)))throw new FileNotFoundException("Session file missing");}public List<TodoItem> GetCurrentTodos(){return JsonConvert.DeserializeObject<List<TodoItem>>(File.ReadAllText(GetSessionFilePath(_currentSessionId)));}private string GetSessionFilePath(string sessionId) => Path.Combine(_workspacePath, $"{sessionId}.json");
}

2.API通信处理类

csharp复制
public class TodoApiClient
{private const string ApiEndpoint = "https://api.siliconflow.cn/v1/chat/completions";public async Task<List<TodoItem>> GenerateTodosAsync(string question){using var client = new HttpClient();client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", "[YOUR_API_KEY]");var request = new{model = "deepseek-ai/DeepSeek-V3",messages = new[] {new { role = "user", content = $"请根据以下问题生成规范的待办事项列表：{question}。按JSON数组格式返回" }},response_format = new { type = "json_object" }};var response = await client.PostAsync(ApiEndpoint, new StringContent(JsonConvert.SerializeObject(request), Encoding.UTF8, "application/json"));var responseObj = JObject.Parse(await response.Content.ReadAsStringAsync());return ParseTodoJson(responseObj["choices"][0]["message"]["content"].ToString());}private List<TodoItem> ParseTodoJson(string json){// 示例响应格式：{ "todos": [{...}] }return JObject.Parse(json)["todos"]?.Select(t => new TodoItem {Id = Guid.NewGuid(),Content = t["content"].ToString(),Created = DateTime.Now}).ToList() ?? new List<TodoItem>();}
}

3.文件存储服务

csharp复制
public class TodoFileManager
{private FileSystemWatcher _watcher;public void SetupFileWatcher(Action<string> onChange){_watcher = new FileSystemWatcher{Path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "todu"),Filter = "*.json",NotifyFilter = NotifyFilters.LastWrite};_watcher.Changed += (s, e) => onChange(e.Name.Replace(".json", ""));_watcher.EnableRaisingEvents = true;}public void SaveTodos(string sessionId, List<TodoItem> todos){var json = JsonConvert.SerializeObject(todos, Formatting.Indented);File.WriteAllText(GetFilePath(sessionId), json, Encoding.UTF8);}private string GetFilePath(string sessionId) => Path.Combine("todu", $"{sessionId}.json");
}

4.窗口界面关键代码（Windows Forms）

csharp复制
public partial class MainForm : Form
{private SessionManager _sessionManager = new SessionManager();private TodoApiClient _apiClient = new TodoApiClient();private BindingList<TodoItem> _currentTodos = new BindingList<TodoItem>();public MainForm(){InitializeComponent();_sessionManager.InitWorkspace();lstSessions.DisplayMember = "Key";lstSessions.ValueMember = "Value";todoListBox.DataSource = _currentTodos;todoListBox.DisplayMember = "Content";}// 新建会话按钮private void btnNewSession_Click(object sender, EventArgs e){var sessionId = _sessionManager.CreateNewSession();lstSessions.Items.Add(new KeyValuePair<string, string>($"会话 {lstSessions.Items.Count+1}", sessionId));}// 发送提问按钮private async void btnSend_Click(object sender, EventArgs e){var todos = await _apiClient.GenerateTodosAsync(txtInput.Text);_currentTodos.Clear();foreach(var item in todos)_currentTodos.Add(item);_sessionManager.SaveCurrentTodos(_currentTodos.ToList());}// 切换会话选择private void lstSessions_SelectedIndexChanged(object sender, EventArgs e){if(lstSessions.SelectedItem is KeyValuePair<string, string> selected){_sessionManager.SwitchSession(selected.Value);_currentTodos = new BindingList<TodoItem>(_sessionManager.GetCurrentTodos());todoListBox.DataSource = _currentTodos;}}
}

5.扩展功能建议

csharp复制
// 增加会话元数据存储
public class SessionMetadata
{public string SessionId { get; set; }public string Title { get; set; }public DateTime LastModified { get; set; }
}// 在SessionManager中添加
public void SaveSessionMetadata(SessionMetadata meta)
{var path = Path.Combine(_workspacePath, "_sessions.json");var list = File.Exists(path) ? JsonConvert.DeserializeObject<List<SessionMetadata>>(File.ReadAllText(path)) : new List<SessionMetadata>();if(list.Any(m => m.SessionId == meta.SessionId))list.RemoveAll(m => m.SessionId == meta.SessionId);list.Add(meta);File.WriteAllText(path, JsonConvert.SerializeObject(list));
}

csharp复制
public class TodoItem
{public Guid Id { get; set; }public string Content { get; set; }public bool IsCompleted { get; set; }public DateTime Created { get; set; }public DateTime? CompletedDate { get; set; }
}// 在界面中添加状态切换
private void todoListBox_MouseDoubleClick(object sender, MouseEventArgs e)
{if(todoListBox.SelectedItem is TodoItem item){item.IsCompleted = !item.IsCompleted;item.CompletedDate = item.IsCompleted ? DateTime.Now : null;_sessionManager.SaveCurrentTodos(_currentTodos.ToList());todoListBox.Refresh();}
}