如题 
import base64
import hashlib
import json
import time

import requests

CHALLENGE_URL = "https://xxxxxx/api/sign/challenge"
SUBMIT_URL = "https://xxxxxx/api/sign/submit"

DIFFICULTY = "easy"
PREFIX = "00000"

COOKIE = "xxxxxx"

HEADERS = {
    "accept": "application/json",
    "content-type": "application/json",
    "user-agent": (
        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
        "A...