钉钉第二种，加签发消息

import time
import hmac
import hashlib
import base64
import urllib.parse
def get_sign():
    timestamp = str(round(time.time() * 1000))
    secret = ‘SEC6b56772f9126e3b55711413f40114c9954a120965979650356e89e380bd50d05‘
    secret_enc = secret.encode(‘utf-8‘)
    # string_to_sign = ‘{}\n{}‘.format(timestamp, secret)
    string_to_sign = timestamp+ ‘\n‘ + secret
    string_to_sign_enc = string_to_sign.encode(‘utf-8‘)
    hmac_code = hmac.new(secret_enc, string_to_sign_enc, digestmod=hashlib.sha256).digest()
    sign = urllib.parse.quote_plus(base64.b64encode(hmac_code))
    return timestamp,sign

import time
url = "https://oapi.dingtalk.com/robot/send?access_token=1dc3bfa867e169261bb21793fff3da9f83f756085efadaa0bdd107c453e3e91c"  #数据测试
for i in range(3):
    data ={
        "msgtype": "text",
        "text": {
        "content": "现在的时间可以休息%s" % i
    }
    }
    timestamp,sign = get_sign()
    params1 ={"timestamp":timestamp,"sign":sign}
    r = requests.post(url,json=data,params=params1)
    print(r.json())