【发布时间】：2022-10-05 20:32:57
【问题描述】：
如何修改为 WTelegramclient 提供的标准示例（https://github.com/wiz0u/WTelegramClient/blob/master/Examples/Program_ListenUpdates.cs）以侦听新消息并仅从一个频道更新并将消息/或编辑发送到另一个频道。 目前，它会侦听来自所有渠道或联系人的消息，以连接到用户帐户。
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仅从一个频道获取和收听更新（新闻消息和编辑）。
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将更新发送到另一个频道
using System; using System.Collections.Generic; using System.Threading.Tasks; using TL; namespace WTelegramClientTest { static class Program_ListenUpdates { static WTelegram.Client Client; static User My; static readonly Dictionary<long, User> Users = new(); static readonly Dictionary<long, ChatBase> Chats = new(); // go to Project Properties > Debug > Environment variables and add at least these: api_id, api_hash, phone_number static async Task Main(string[] _) { Console.WriteLine(\"The program will display updates received for the logged-in user. Press any key to terminate\"); WTelegram.Helpers.Log = (l, s) => System.Diagnostics.Debug.WriteLine(s); Client = new WTelegram.Client(Environment.GetEnvironmentVariable); using (Client) { Client.OnUpdate += Client_OnUpdate; My = await Client.LoginUserIfNeeded(); Users[My.id] = My; // Note: on login, Telegram may sends a bunch of updates/messages that happened in the past and were not acknowledged Console.WriteLine($\"We are logged-in as {My.username ?? My.first_name + \" \" + My.last_name} (id {My.id})\"); // We collect all infos about the users/chats so that updates can be printed with their names var dialogs = await Client.Messages_GetAllDialogs(); // dialogs = groups/channels/users dialogs.CollectUsersChats(Users, Chats); Console.ReadKey(); } } // if not using async/await, we could just return Task.CompletedTask private static async Task Client_OnUpdate(IObject arg) { if (arg is not UpdatesBase updates) return; updates.CollectUsersChats(Users, Chats); foreach (var update in updates.UpdateList) switch (update) { case UpdateNewMessage unm: await DisplayMessage(unm.message); break; case UpdateEditMessage uem: await DisplayMessage(uem.message, true); break; // Note: UpdateNewChannelMessage and UpdateEditChannelMessage are also handled by above cases case UpdateDeleteChannelMessages udcm: Console.WriteLine($\"{udcm.messages.Length} message(s) deleted in {Chat(udcm.channel_id)}\"); break; case UpdateDeleteMessages udm: Console.WriteLine($\"{udm.messages.Length} message(s) deleted\"); break; case UpdateUserTyping uut: Console.WriteLine($\"{User(uut.user_id)} is {uut.action}\"); break; case UpdateChatUserTyping ucut: Console.WriteLine($\"{Peer(ucut.from_id)} is {ucut.action} in {Chat(ucut.chat_id)}\"); break; case UpdateChannelUserTyping ucut2: Console.WriteLine($\"{Peer(ucut2.from_id)} is {ucut2.action} in {Chat(ucut2.channel_id)}\"); break; case UpdateChatParticipants { participants: ChatParticipants cp }: Console.WriteLine($\"{cp.participants.Length} participants in {Chat(cp.chat_id)}\"); break; case UpdateUserStatus uus: Console.WriteLine($\"{User(uus.user_id)} is now {uus.status.GetType().Name[10..]}\"); break; case UpdateUserName uun: Console.WriteLine($\"{User(uun.user_id)} has changed profile name: @{uun.username} {uun.first_name} {uun.last_name}\"); break; case UpdateUserPhoto uup: Console.WriteLine($\"{User(uup.user_id)} has changed profile photo\"); break; default: Console.WriteLine(update.GetType().Name); break; // there are much more update types than the above cases } } // in this example method, we\'re not using async/await, so we just return Task.CompletedTask private static Task DisplayMessage(MessageBase messageBase, bool edit = false) { if (edit) Console.Write(\"(Edit): \"); switch (messageBase) { case Message m: Console.WriteLine($\"{Peer(m.from_id) ?? m.post_author} in {Peer(m.peer_id)}> {m.message}\"); break; case MessageService ms: Console.WriteLine($\"{Peer(ms.from_id)} in {Peer(ms.peer_id)} [{ms.action.GetType().Name[13..]}]\"); break; } return Task.CompletedTask; } private static string User(long id) => Users.TryGetValue(id, out var user) ? user.ToString() : $\"User {id}\"; private static string Chat(long id) => Chats.TryGetValue(id, out var chat) ? chat.ToString() : $\"Chat {id}\"; private static string Peer(Peer peer) => peer is null ? null : peer is PeerUser user ? User(user.user_id) : peer is PeerChat or PeerChannel ? Chat(peer.ID) : $\"Peer {peer.ID}\";} }
标签： c# wtelegramclient