Basically I'm trying to understand how this API works, by doing the following .I'm not able to get the message to my channel (I'm sending the /test command from my telegram account). Also, how I'm supposed to use JobQueue and send auto-msgs every 3 hours for example? The documentation explanation doesn't works for me.

基本上，我试图通过执行以下操作来理解此API的工作原理。我无法将消息发送到我的通道(我正在从我的电报帐户发送/test命令)。另外，例如，我应该如何使用JobQueue和每3小时发送一次自动消息？文档解释对我不起作用。

def test(bot, update):
    update.send_message(chat_id='@channelid', text='this is a test')

def main():
    # Create the EventHandler and pass it your bot's token.
    updater = Updater("457160310:AAFlxrH2uAaOMGrgO0suOXFM2gVKywsUL0E")
    dp = updater.dispatcher

    dp.add_handler(CommandHandler("test", test))

    dp.add_error_handler(error)

    updater.start_polling()

    updater.idle()


if __name__ == '__main__':
    main()

For the job implementation to send messages on intervals you can read this page that is full of examples. Someone should be the very same thing you want to do.

为了让作业实现按时间间隔发送消息，您可以阅读此页面，其中充满了示例。有些人应该和你想做的事情完全一样。

About the command thing, I think that the library doesn’t get commands from channels so you may consider to:

关于命令，我认为该库不从通道获取命令，因此您可以考虑：

• send the command in private chat to the bot and the bot sends the reply to the channel (better thing in my opinion)

  在私人聊天中向机器人发送命令，机器人将回复发送到频道(在我看来，这是更好的做法)




• handle messages from channels (not commands) and checking if the text of the message contains the command

  处理来自通道的消息(不是命令)，并检查消息文本是否包含命令

I would suggest the first solution so you can even keep clean the channel

我建议第一个解决方案，这样你甚至可以保持渠道畅通

You can send messages directly to a channel or a conversation using the Telegram REST API by knowing its chat_id.

According to the Telegram documentation, methods such as webhooks require users to send a message to the bot first before the bot can reply. These methods essentially aim to obtain a chat_id, which is different for different recipients.

通过知道其chat_id，您可以使用Telegram rest API将消息直接发送到通道或会话。根据Telegram的文档，网络挂钩等方法要求用户首先向机器人发送消息，然后机器人才能回复。这些方法本质上是为了获取chat_id，对于不同的接收者来说，这是不同的。

However, if you want to send messages to a specific channel without going through that process, you only need to acquire the fixed chat_id of the channel and the bot's token. Then, you can use curl to send the message:

然而，如果您想不经过该过程就将消息发送到特定的通道，您只需要获取该通道的固定chat_id和机器人的令牌。然后，您可以使用cURL发送消息：

// get
curl -i -X GET \
 'https://api.telegram.org/bot{0}/sendMessage?chat_id={1}&text=hello'

// post
curl -i -X POST \
   -H "Content-Type:application/json" \
   -d \
'{
  "chat_id": "{1}",
  "text": "here is bot"
}' \
 'https://api.telegram.org/bot{0}/sendMessage'

Please replace {0} with the bot's token and {1} with the fixed chat_id of the channel.

请将{0}替换为机器人的令牌，将{1}替换为频道的固定chat_id。

How to obtain the chat_id of a channel?

You can send the channel's link to the @username_to_id_bot, and it will provide you with the chat_id of the channel.
Link: https://t.me/username_to_id_bot

您可以将频道的链接发送到@username_to_id_bot，它将为您提供频道的chat_id。链接：https://t.me/username_to_id_bot