【Python】获取验证码

import requests


def 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"
        }
        im_url = 'http://121.251.136.100/jwxt/sys/ValidateCode.aspx'
        # 获取响应图片内容
        image = sess.get(im_url, headers=headers).content
        # 保存到本地
        path = 'F:\Python\code\\'
        name = str(i)+".jpg"
        with open(path+name, "wb") as f:
            f.write(image)


if __name__ == "__main__":
        # 获取100张图片
        for i in range(100):
            downimage(i)