1、Cookies里面的FP_LASTTIME和FP_UID不知道如何获取

2、payload里面的_BSK不知道如何获取。（在点击发表按钮之后会获取一段1843行的JS代码，感觉是用来加密什么然后得到的这个参数。）

是不是应该检查发表按钮的元素，看看这个按钮上绑定了哪些动作，然后对这些JS文件逐一分析？希望各界大牛不吝赐教，谢谢！

百度贴吧回贴代码(Python版本)：

import requests


headers = {
    'Host': 'tieba.baidu.com',
    'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:54.0) Gecko/20100101 Firefox/54.0',
    'Accept': 'application/json, text/javascript, */*; q=0.01',
    'Accept-Language': 'zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3',
    'Accept-Encoding': 'gzip, deflate, br',
    'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
    'X-Requested-With': 'XMLHttpRequest',
    'Referer': 'https://tieba.baidu.com/p/5113276225',
    'Content-Length': '1878',
    'Connection': 'keep-alive'
}
cookies = {
    'fixed_bar': '1',  # 固定的，万年不变。
    'TIEBAUID': '14d764bc1eae8f5834623981',  # 登录获取
    'TIEBA_USERTYPE': '5f4d5be13962828df0bb90e1',  # 登录获取
    'BAIDUID': 'F55EFC378015FB41FE66B2A5E4C7351E:FG=1',  # 登录获取
    'FP_LASTTIME': '1498723563061',  # 目测像登录时间？或者是最后活跃时间？
    'FP_UID': '9b899b3e7d0d51a6963d932f8046dc1a',  # 登录时也有这个参数，不知道如何获取。
    'BDUSS': 'FiR1pSLWY1eVV0NU1lNnd-YzVaY0FWME16NWRJczhJZWlaNk9Sfmp5Yn5RWHhaSVFBQUFBJCQAAAAAAAAAAAEAAAD5u622tsjI~besAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP-0VFn~tFRZUX',  # 登录获取
    'STOKEN': '2ce30a036d70b52438f54b4ad8b2261df7a68a2980d755f0ea5772f859378321',  # 登录获取
    '3064839161_FRSVideoUploadTip': '1',  # 前面的数字不知道如何获取
    'wise_device': '0'  # 固定的，万年不变。
}
payload = {
    'ie': 'utf-8',
    'kw': '李彦宏',  # 贴吧名
    'fid': '42',  # 贴吧fid
    'tid': '5113276225',  # 贴号
    'vcode_md5': '',  # 验证码的MD5
    'floor_num': '3',  # 回复后的所在楼层
    'rich_text': '1',
    'tbs': '5421d6a3b47f80071498725341',  # 在贴子源码中获取
    'content': '这里是回贴内容',
    'basilisk': '1',
    'files': '[]',
    'mouse_pwd': '108,110,106,116,106,106,107,106,81,105,116,104,116,105,116,104,116,105,116,104,116,105,116,104,116,105,116,104,81,109,96,111,106,108,81,105,110,96,104,116,105,104,109,104,14987253481880',
    'mouse_pwd_t': '1498725348188',  # 时间戳
    'mouse_pwd_isclick': '0',
    '__type__': 'reply',
    '_BSK': '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',  # 不知道如何获取
}
http = requests.post('https://tieba.baidu.com/f/commit/post/add', headers=headers, cookies=cookies, data=payload)
print(http.text)