我最近也在尝试做同样的事情.这个简单的程序可能适合您.

I've try to do the same just recently. This simple program probably works for you.

import requests
def get_fbid(fb_url):
    URL = "https://findmyfbid.com/"
    PARAMS = {'url': fb_url}
    try:
        r = requests.post(url = URL, params= PARAMS)
        return r.json().get("id")
    except Exception:
        return 0