title: couldn't find the element by soup.find
body: <p>I couldn't find the value. the value location in html is  (span 161 /span)
  Should I try xpath method to get theelement ? Or better suggetion ?</p>
  <pre><code>!pip install Selenium
  from selenium import webdriver
  
  # 要把chromedriver 放在同一層資料夾裡
  browser = webdriver.Chrome(executable_path='./chromedriver.exe')
  
  browser.get(&quot;https://shopee.tw/shop/10228173/search?page=0&amp;sortBy=ctime&quot;)
  source = browser.page_source
  
  import time
  import requests
  from bs4 import BeautifulSoup
  
  soup = BeautifulSoup(source)
  browser.get(&quot;https://www.rakuten.com.tw/shop/watsons/product/956957/&quot;)
  soup = BeautifulSoup(browser.page_source)
  soup
  products =[]
  product = {}
  #     product['網址'] = link
  
  product['購買次數'] = soup.find('div',class_=&quot;b-container-child&quot;).span
  products.append(product)
  print(products)
      
  </code></pre>