2019-06-23--爬取豆瓣前250数据保存到本地

import requests
from bs4 import BeautifulSoup
import xlwt
import time



def request_douban(url):
    try:
        response = requests.get(url)
        if response.status_code == 200:
            return response.text
    except requests.RequestException:
        return None


book=xlwt.Workbook(encoding='utf-8',style_compression=0)

sheet=book.add_sheet('豆瓣电影Top250',cell_overwrite_ok=True)
sheet.write(0,0,'名称')
sheet.write(0,1,'图片')
sheet.write(0,2,'排名')
sheet.write(0,3,'评分')
sheet.write(0,4,'作者')
sheet.write(0,5,'简介')

n=1
print("123")


def save_to_excel(soup):
    list = soup.find(class_='grid_view').find_all('li')

    for item in list:
        item_name = item.find(class_='title').string
        item_img = item.find('a').find('img').get('src')
        item_index = item.find(class_='').string
        item_score = item.find(class_='rating_num').string
        item_author = item.find('p').text
        if(item.find(class_='inq')!=None):
            item_intr = item.find(class_='inq').string

        # print('爬取电影：' + item_index + ' | ' + item_name +' | ' + item_img +' | ' + item_score +' | ' + item_author +' | ' + item_intr )
        print('爬取电影：' + item_index + ' | ' + item_name  +' | ' + item_score  +' | ' + item_intr )

        global n

        sheet.write(n, 0, item_name)
        sheet.write(n, 1, item_img)
        sheet.write(n, 2, item_index)
        sheet.write(n, 3, item_score)
        sheet.write(n, 4, item_author)
        sheet.write(n, 5, item_intr)

        n = n + 1


def main(page):
    url = 'https://movie.douban.com/top250?start='+ str(page*25)+'&filter='
    html = request_douban(url)
    soup = BeautifulSoup(html, 'lxml')
    save_to_excel(soup)


if __name__ == '__main__':
    start = time.time()
    for i in range(0, 10):
        main(i)
    end = time.time()
    print("完成时间: %f s" % (end - start))  #
book.save(u'豆瓣最受欢迎的250部电影.xlsx')