基于python3.6.2，mac，废话不多说，直接上代码～

# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from urllib.parse import urlencode
import urllib.request
import chardet
import urllib
import json
import re
from bs4 import BeautifulSoup
import sys
import requests
import os# 定义全局变量，设置图片命名规则
imageIndex = 0
def modifyConstant():global imageIndeximageIndex += 1return# 通过chardet通用编解码神器，解决了UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc9 in position 1278: invalid continuation byte
def getHtml(url):page = urllib.request.urlopen(url)html = page.read()htmlCharsetGuess = chardet.detect(html)htmlCharsetEncoding = htmlCharsetGuess["encoding"]htmlCode_decode = html.decode(htmlCharsetEncoding)type = sys.getfilesystemencoding()htmlCode_encode = htmlCode_decode.encode(type)return htmlCode_encode# 获取每个页面中的详细信息
def parse_page_detail(html):soup = BeautifulSoup(html, 'lxml')images_pattern = re.compile('sub_images(.*?)max_img_width', re.S)html = html.decode('utf8')result = re.search(images_pattern, html)if result:str = result.group(0)[12:-15]data = json.loads(str)for i in range(0, len(data)):getImg(data[i].get('url'))# 下载图片到本地
# def getImg(imgurl):
#     path = "/Users/luoxiaohui/Desktop/test/"
#     if not os.path.isdir(path):
#         os.makedirs(path)
#     paths = path + ""
#     urllib.request.urlretrieve(imgurl, ''.format(paths))
# 下载图片到本地，改用了requests库
def getImg(imgUrl):modifyConstant()path = "/Users/luoxiaohui/Desktop/test/"if not os.path.isdir(path):os.makedirs(path)try:pic = requests.get(imgUrl, timeout=10)print('第' + str(imageIndex) + '张图片下载完成-->' + imgUrl)except requests.exceptions.ConnectionError:print('【错误】当前图片无法下载')string = path + str(imageIndex) + '.jpg'fp = open(string, 'wb')fp.write(pic.content)fp.close()# 获取索引页面
def get_page_index(offset, keyword):data = {'offset': offset,'format': 'json','keyword': keyword,'autoload': 'true','count': '20','cur_tab': 3}url = 'http://www.toutiao.com/search_content/?' + urlencode(data)return getHtml(url)# 解析套图中的图片
def parse_page_index(html):data = json.loads(html)if data and 'data' in data.keys():for item in data.get('data'):yield item.get('article_url')html = get_page_index(0, '街拍')
for url in parse_page_index(html):html = getHtml(url)if html:parse_page_detail(html)