def get_wechat_access_token():
    url = f"{WECHAT_API_URL}/cgi-bin/token?grant_type=client_credential&appid={WECHAT_APPID}&secret={WECHAT_APPSECRET}"
    try:
        response = requests.get(url)
        if response.status_code == 200:
            result = response.json()
            if 'access_token' in result:
                return result['access_token']
            else:
                print(f"获取 access_token 失败，错误信息：{result}")
    except requests.RequestException as e:
        print(f"获取 access_token 发生错误：{e}")
    return None

上传封面图片失败，错误信息：{'errcode': 40066, 'errmsg': 'invalid url rid: XXX'}