import json

import requests

import re

from multiprocessing import Pool #//进程池

from requests.exceptions import RequestException

#请求单页

def get_one_page(url):

    try:

        headers = {

            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.79 Safari/537.36'

        }

        response = requests.get(url,headers=headers)

        if response.status_code == 200:

            return response.text

        return None

    except RequestException:

        return None

#解析页面

def parse_one_page(html):

    pattern = re.compile('<dd>.*?board-index.*?>(\d+)</i>.*?data-src="(.*?)".*?name"><a.*?>(.*?)</a>.*?star">(.*?)</p>.*?releasetime">(.*?)</p>.*?integer">(.*?)</i>.*?fraction">(.*?)</i>.*?</dd>',re.S)

    items = re.findall(pattern, html)

    print(items)

    for item in items:

        yield {

            'index':item[0],

            'image': item[1],

            'title': item[2],

            'actor': item[3].strip()[3:],

            'time':item[4].strip()[5:],

            'score': item[5]+item[6]

        }

def main(offset):

    url = 'https://maoyan.com/board/4?offset='+str(offset)

    html = get_one_page(url)

    htmls=parse_one_page(html)

    for item in htmls:

        print(item)

        wirte_to_file(item) #写入文件

#写到文件中

def wirte_to_file(content):

    with open('result.txt','a') as f:

        f.write(json.dumps(content)+'\n')

        f.close()

#开始调用

if __name__ =='__main__':

    #普通方式

    for item in range(10):

        main(str(item*10))

    #线程池

    # pool = Pool()

    # pool.map(main,[i*10 for i in range(10)])