python 批量获取验证码图片 简单案例

# coding:utf8import requestsdef downimage(i):    # 构建session    sess = requests.Session()    # 建立请求头    headers={"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.75 Safari/537.36",             "Connection": "keep-alive"}    # 这个url是联合航空公司验证码，根据访问时间戳返回图片    url="https://account.flycua.com/sso/chineseVerifyCode.images"    # 获取响应图片内容    image=sess.get(url,headers=headers).content    # 保存到本地    with open(str(i)+"image.jpg","wb") as f:        f.write(image)if __name__=="__main__":    # 获取10张图片    for i in range(10):        downimage(i)