难道是这样？两年前的方法了……

def _gen_req_params():
"""
生成请求头条 URL 必要的密钥参数
:return:
"""
# 响应结果
params = {
'as': '479BB4B7254C150',
'cp': '7E0AC8874BB0985'
}

# 当前时间戳
timestamp = int(math.floor(int(round(time.time() * 1000)) / 1000))
now = hex(timestamp)
now_str_number = now[2:len(now)].upper()
now_md5 = hashlib.md5(str(timestamp).encode()).hexdigest().upper()

# 计算 as 和 cp 参数
if len(now_str_number) == 8:
as_pre = ''
cp_pre = ''
first_five_char = now_md5[0:5]
last_five_char = now_md5[:-5]
for i in range(5):
as_pre += first_five_char[i] + now_str_number[i]
for j in range(5):
cp_pre += now_str_number[j + 3] + last_five_char[j]
as_result = "A1" + as_pre + now_str_number[-3:]
cp_result = now_str_number[0:3] + cp_pre + "E1"
params = {
'as': as_result,
'cp': cp_result
}
return params