爬取下载图片，代码写得也是难看死，有时间优化吧

# -*-coding:utf-8-*-
from lxml import etree
import requests
import sys, os, re


class Meizitu(object):
    def __init__(self):
        # 设置序号为图片名
        self.i = 1
        # 构建url
        self.url = 'http://www.meizitu.com/a/more_{}.html'
        # 构建header
        self.headers = {
            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36"
        }
        self.pattern = re.compile('http://www.meizitu.com/a/\d+.html', re.S)  # 使用正则匹配url
        self.img_url = []

    def get_page(self, url):
        response = requests.get(url, headers=self.headers)
        # print(response.encoding)  # 返回内容编码编码格式
        return response.content

    def parse_data(self, detail_data):
        # 取得图片页url
        str_data1 = self.pattern.findall(detail_data.decode('utf-8', 'ignore'))
        return str_data1

    def pic_info(self, image_list):
        # 详细页面
        img_url = []
        for url in image_list:
            img_page = self.get_page(url)
            html = etree.HTML(img_page)
            if html is not None:
                img_detial_list = html.xpath('//img/@src')
                if img_detial_list:
                    for i in img_detial_list:
                        if i not in self.img_url:
                            self.img_url.append(i)  # 去重存到self.img_url
                            img_url.append(i)

    def download(self):
        # print(image_list)
        if not os.path.exists('images'):
            os.makedirs('images')

        for url in self.img_url:
            print(url)
            data = self.get_page(url)
            with open('images' + os.sep + str(self.i) + '.jpg', 'wb+') as f:
                f.write(data)
            self.i = self.i + 1

    def run(self):
        page = input('输入页码')
        self.url = 'http://www.meizitu.com/a/more_{}.html'.format(page)

        print(self.url)
        detail_data = self.get_page(self.url)
        # 抽取图片url
        image_list = self.parse_data(detail_data)
        self.pic_info(image_list)
        self.download()


if __name__ == '__main__':
    meizi = Meizitu()
    meizi.run()