def isLogin(self):
    url = f'https://nyan.mail.wo.cn/cn/sign/user/isLoginMail.do?rand={self.randomNum}'
    resp = self.session.post(url=url)
    print(resp.text)
def isLogin(self):
    url = f'https://nyan.mail.wo.cn/cn/sign/user/isLoginMail.do?rand={self.randomNum}'
    resp = self.session.post(url=url)
    print(resp.text)