注意：

不要在一個直播間浪太久，會被拉黑的，說不定會被罵[哭唧唧]

# encoding=utf-8
# Created by double lin at 2018/10/10
import requests

# 獲取最新的彈幕列表，並輸出內容
# cookie = {
#     'cookies': 'dadfasdf'
# }
def dm():
    form_data = {
        'roomid': '7734200',
        'csrf_token': '3b32519208d74007f5df36247f535517',
        'visit_id': ''
    }
    res = requests.post('https://api.live.bilibili.com/ajax/msg', data=form_data)
    text = res.json()['data']['room'][-1]['text']
    return text

def send(msg):
    form_data = {
        'color': '16777215',
        'fontsize': '25',
        'mode': '1',
        'msg': msg,
        'rnd': '1539131561',
        'roomid': '7734200',
        'csrf_token': '3b32519208d74007f5df36247f535517'
    }
    cookie = {
        'Cookie': 'sid=85eo9p1i; fts=1535796133; LIVE_BUVID=AUTO4815357971941568; stardustvideo=1; CURRENT_FNVAL=8; buvid3=F75C5C53-B663-45C8-9D2B-524E2C77416316076infoc; rpdid=xopkiolwidosksmlmiww; im_notify_type_255205669=0; UM_distinctid=165f12aa47f759-08e60c59840eb3-3a61430c-1fa400-165f12aa480755; im_local_unread_255205669=0; DedeUserID=255205669; DedeUserID__ckMd5=5a90d485af6a99f0; SESSDATA=a3ee9543%2C1540518411%2C434a9de3; bili_jct=3b32519208d74007f5df36247f535517; CURRENT_QUALITY=0; finger=edc6ecda; bsource1=undefined; bsource=seo_baidu; _dfcaptcha=29211fa38f3d3500b42a89f464a47c43; Hm_lvt_8a6e55dbd2870f0f5bc9194cddf32a02=1537331358,1537404239,1539131525; Hm_lpvt_8a6e55dbd2870f0f5bc9194cddf32a02=1539131564'
    }
    res2 = requests.post('https://api.live.bilibili.com/msg/send', cookies=cookie, data=form_data)

s = ''
while True:
    msg = dm()
    if (s == msg):
        continue
    else:
        send(msg)
        s = msg
        print(msg)