网页爬虫 - python+selenium+firefox爬虫，页面元素可以定位到，但是打印page_source却显示不出来该元素？爬虫

Question

用python+selenium+firefox爬取网易云音乐指定音乐精彩评论，switch到iframe了，也可以定位到该元素，但是我打印driver.page_source却显示不全？

---

driver = webdriver.Firefox()
driver.maximize_window()
driver.set_page_load_timeout(10)

try:
    driver.get("http://music.163.com/#/song?id=31877470")
except selenium.common.exceptions.TimeoutException:
    print("time out of 10 s")
    driver.execute_script('window.stop()')

print("休眠结束")
driver.switch_to.frame("contentFrame")
time.sleep(5)
print(driver.find_element_by_id('comment-box').text)
bsObj = BeautifulSoup(driver.page_source)
print(driver.page_source)   

---

这时候能通过driver输出精彩评论：

这是输出的page_source的部分截图，可以看到在p id="comment-box"后并没有精彩评论的内容，这部分源码没有。

Answer 1

#encoding=utf-8
from selenium import webdriver
driver = webdriver.Chrome()#用的谷歌，到http://chromedriver.storage.googleapis.com/index.htm 下载
driver.maximize_window()
driver.set_page_load_timeout(10)

try:
    driver.get("http://music.163.com/#/song?id=31877470")
except selenium.common.exceptions.TimeoutException:
    print("time out of 10 s")
    driver.execute_script('window.stop()')

print(u"休眠结束")
driver.switch_to.frame("contentFrame")
time.sleep(5)
print(driver.find_element_by_id('comment-box').text.encode('GBK', 'ignore'))
bsObj = BeautifulSoup(driver.page_source)
source = driver.page_source.encode('GBK', 'ignore')
open('163.txt','w').write(source)#163.txt文件可以看到精彩评论的
#print(driver.page_source.encode('GBK', 'ignore'))

Answer 2

I ran your code and found that it works. Look at the screenshot, it’s in the p of the grandson of who knows how many generations with p id="comment-box"

Answer 3

Could you please use the driver.page_source method to obtain the source code of the webView embedded in the APP? Many labels are also empty? How to deal with it?