如何通过提及 (@User) 获取用户 ID
How to get a user's id from mentioning (@User)
例如，如果用户发送机器人 /text @USER 我如何获取@USER 的 ID 并向他们发送消息？
问题与 不同，因为该问题的答案要求所述用户 (@USER) 已经向 bot/the 所有者发送消息，让其知道用户的 ID。
有3个条件：
1-@user is not subscribed to your bot before(not initiated chat with your bot before or it does block your bot after some chat with your bot: In this condition you can NEVER send any type of message to that @user.
2-@user doesn't exist or is incorrect . As you know, a telegram user subscribe with phone and first name (at least) and he/she could not have any @user id: In this condition there is no user name to send.
3-@user exists and already is your bot subscriber. In this condition you should save all subscribers chat_id and their related user_name as they sends some messages to your bot in a database because these data are part of each message you receive from users. So for send to that @user you should find related chat_id from your DB.(Non of Telegram Bot API methods use @username but they use chat_id)
这是用户发送 /1 命令时电报的 JSON 响应示例，如您所见，电报始终附加发件人 chat_id、firs_name、last_name 和 username（如果存在）到机器人收到的每条消息：
UPDATED:
As users may change they @username during the time, it is better to
update your chat_id<-->@username database with each message you
receive.
例如，如果用户发送机器人 /text @USER 我如何获取@USER 的 ID 并向他们发送消息？
问题与
有3个条件：
1-
@useris not subscribed to your bot before(not initiated chat with your bot before or it does block your bot after some chat with your bot: In this condition you can NEVER send any type of message to that@user.2-
@userdoesn't exist or is incorrect . As you know, a telegram user subscribe with phone and first name (at least) and he/she could not have any@userid: In this condition there is no user name to send.3-
@userexists and already is your bot subscriber. In this condition you should save all subscriberschat_idand their relateduser_nameas they sends some messages to your bot in a database because these data are part of each message you receive from users. So for send to that@useryou should find relatedchat_idfrom your DB.(Non ofTelegram Bot APImethods use@usernamebut they usechat_id)
这是用户发送 /1 命令时电报的 JSON 响应示例，如您所见，电报始终附加发件人 chat_id、firs_name、last_name 和 username（如果存在）到机器人收到的每条消息：
UPDATED:
As users may change they
@usernameduring the time, it is better to update yourchat_id<-->@usernamedatabase with each message you receive.