import requests
session = requests.session()

data = {
    'username': 'admin',
    'password': '123456'
}
headers = {
    'User-Agent': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9',
    'Connection': 'keep-alive'
}
url = 'https://xxx.com/admin/public/login.html'
restult = session.post(url,data=data)

r = session.get('https://xxx.com/cloud/syscloud/managesave.html?id=1409&act=reboot',headers=headers)
print(r.text)

如果您的问题仍未解决，还可以加入服务器在线技术交流QQ群:8017413寻求帮助。