如何从烂番茄上刮下一页以上的评论？

Question

我一直在用这个刮刀刮这个URL的评论：https://www.rottentomatoes.com/m/avengers_endgame/reviews 尽管如此，我一直在为如何浏览额外的页面而苦苦挣扎，因为目前这会刮伤第一页的评论。有人知道我会怎么做吗

import selenium
from selenium import webdriver
import pandas as pd
driver = webdriver.Chrome()
driver.get("https://www.rottentomatoes.com/m/avengers_endgame/reviews")
review_1df = pd.DataFrame(columns=['Date', 'Reviewer', 'Website', 'Review', 'Score'])
dates = []
reviews = []
scores = []
newscores = []
names = []
sites = []
results = driver.find_elements_by_class_name("review_area")
reviewnum = 1
reviewers = driver.find_elements_by_class_name("col-xs-8")

for r in results:
    dates.append(r.find_element_by_class_name('subtle').text)
    reviews.append(r.find_element_by_class_name('the_review').text)
    revs = r.find_element_by_class_name('review_desc')
    scores.append(revs.find_element_by_class_name('subtle').text)
    
    for r in reviewers:
        names.append(r.find_element_by_xpath('//*[@id="reviews"]/div[2]/div[4]/div[' +str(reviewnum)+ ']/div[1]/div[3]/a[1]').text)
        sites.append(r.find_element_by_xpath('//*[@id="reviews"]/div[2]/div[4]/div[' +str(reviewnum)+']/div[1]/div[3]/a[2]/em').text)
        reviewnum+=1

for score in scores:
    if score == ('Full Review'):
        newscores.append('no score')
    else:
        score2 = score[14:]
        newscores.append(score2)
        
review_1df['Date'] = dates
review_1df['Review'] = reviews
review_1df['Score'] = newscores
review_1df['Reviewer'] = names
review_1df['Website'] = sites

Answer 1

您可以使用URL参数进入下一页的评论，并重复相同的步骤。例如，以下url将带您进入评论的第二页：

https://www.rottentomatoes.com/m/avengers_endgame/reviews?type=&sort=&page=2

注意参数是type=&sort=&page=2，您还可以在其中指定排序和类型。将其更改为page=3以进入第三页

您还必须添加一个检查，以查看该页面是否存在。例如，您将不会收到此URL的任何评论：

https://www.rottentomatoes.com/m/avengers_endgame/reviews?type=&sort=&page=200000