问题
I want to know an example of removing message or file like a photo
I did not find any functional tutorial in this regard,
回答1:
There is no such functionality in Telegram Bot API right now.
UPD 2017-05-19: There is an official method deleteMessage, more info: https://core.telegram.org/bots/api#deletemessage
https://stackoverflow.com/a/43965602/1140438
回答2:
There is an official support of deleteMessage method in Bot API 3.0. More details here: https://core.telegram.org/bots/api#deletemessage
https://api.telegram.org/botTOKEN/deleteMessage?chat_id=CID&message_id=MID
As you can see there are two arguments: chat_id and message_id.
You can remove bot's messages or other messages (if bot is admin) except service messages (such as join/leave messages).
On success, it will return following JSON object:
{"ok":true,"result":true}.If you are trying to remove service message or other user's message, but bot is not an admin:
{"ok":false,"error_code":400,"description":"Bad Request: message can't be deleted"}.If you are trying to remove non-existent message or its already deleted:
{"ok":false,"error_code":400,"description":"Bad Request: message to delete not found"}
回答3:
There are two methods in bot api that let you to edit a message: editMessageText and editMessageCaption. It is not ideal, but you can use it as an alternative.
For example by editing the message to:
"This message is unavailable."
回答4:
https://api.telegram.org/botTOKEN/deleteMessage?chat_id=CID&message_id=MID
Example https://api.telegram.org/bot123456789:zzzzzzzzxxxxxxxxxxyyyyyyyyyy/deleteMessage?chat_id=123456789&message_id=123456,
It is important that the id of the message temine with a (comma) (,) and you can see it in the json when you send the message
来源：https://stackoverflow.com/questions/35269776/telegram-bot-how-to-delete-or-remove-a-message-or-media-from-a-channel-or-group