为了获取用户列表，需要使用电报 API.

In order to get user list, you need to use telegram API.

Telegram API 相当复杂.有一些客户可以更快地完成工作.

Telegram API is fairly complicated. There are some clients which can get the job done much faster.

对于python，有Telethon，获取频道用户的方法是:

For python, there is Telethon, and the method to get channel users is:

get_full_channel.