爬虫爬取图片（女生切勿点开）

#!usr/bin/python
# -*- coding: utf-8 -*-


import bs4
import requests
from bs4 import BeautifulSoup
import webbrowser
import re
import easygui
from lxml import html
from lxml import etree


num = 0

def Header(referer):
    headers = {
        'Host': 'i.meizitu.net',
        'Pragma': 'no-cache',
        'Accept-Encoding': 'gzip, deflate',
        'Accept-Language': 'zh-CN,zh;q=0.8,en;q=0.6',
        'Cache-Control': 'no-cache',
        'Connection': 'keep-alive',
        'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/537.36 (KHTML, like Gecko) '
                      'Chrome/59.0.3071.115 Safari/537.36',
        'Accept': 'image/webp,image/apng,image/*,*/*;q=0.8',
        'Referer': '{}'.format(referer),
    }
    return headers


def get_img(url):
    global num
    header = {
        "User-Agent" : "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36"
    }
    res = requests.get(url, headers = header)
    html = etree.HTML(res.text)
    #确定图片数量
    count = html.xpath('//div[@class="pagenavi"]/a[last()-1]/span/text()')[0]
    count = int(count)
    for j in range(count):
        print(j)
        Url = url + '/{}'.format(j + 1)
        print(Url)
        re = requests.get(Url, headers = header)

        Html = etree.HTML(re.text)
        src = Html.xpath('//div[@class="main-image"]/p/a/img/@src')[0]
        rr = requests.get(src, headers = Header(src))
        with open('F:/代码/picture1/{}.jpg'.format(num), 'wb') as f:
            num = num + 1
            f.write(rr.content)



header = {
        "User-Agent" : "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36"
    }
url = 'http://www.mzitu.com/page/1'
res = requests.get(url, headers = header)
html = etree.HTML(res.text)
srcs = html.xpath('//div[@class="postlist"]//li/a/@href')

for i in srcs:
    # print(i)
    get_img(i)