爬虫加入数据post请求

formdata = {'...': '...', '......': '......', '......': '......'}
HEADERS = {
    'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.36'
}
data = urllib.urlencode(formdata)
request = urllib2.Request(url, data=data, headers=HEADERS)
response = urllib2.urlopen(request)
print response.read()