爬取12306验证码图片

__author__='yc'
import urllib,urllib2
import ssl

headers={
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36'
}

# 目的为了通过未认证的12306证书
ssl._create_default_https_context=ssl._create_unverified_context

def login():
    #获取12306验证码图片地址的请求
    req=urllib2.Request(
'https://kyfw.12306.cn/passport/captcha/captcha-image?login_site=E&module=login&rand=sjrand&0.6551712691897946'
    )
    req.headers=headers
    imgCode=urllib2.urlopen(req).read()
    with open('code.png','wb')as fn:
        fn.write(imgCode)

    req = urllib2.Request(
       'https://kyfw.12306.cn/passport/captcha/captcha-check'
    )
    req.headers=headers
    html=urllib2.urlopen(req).read()
    print html

login()