我有這個代碼：
from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from webdriver_manager.chrome import ChromeDriverManager
import pandas as pd
driver_BV= webdriver.Chrome(service=Service(ChromeDriverManager().install()))
driver_BV.get("https://www.qvc.com/handbags-and-luggage/handbags/clutches/_/N-1cknw/c.html?qq=mh")
product_BV=[]
price_BV=[]
elementHTML=driver_BV.find_element("class name", 'productInfoWrapper')
Final=[]
children_element=elementHTML.find_elements("class name", 'plContent')
print('''
a. Retrieve data
b. Create the graph
c. Display the matrix
d. Save to Excel file
e. Exit
''')
while True:
select_option_BV = input("Select option:")
if select_option_BV == 'a':
for child_element in children_element:
title=child_element.find_element("class name", 'productDesc').get_attribute('innerText')
product_BV.append(title)
titlu=child_element.find_element("class name", 'priceSell')
price=titlu.get_attribute('innerText')
price_BV.append(price)
print ('Products:', product_BV)
print ('Prices:', price_BV)
price=price.replace("$","")
Final.append(float(price))
Product_title_series=pd.Series(product_BV)
Product_price_series=pd.Series(Final)
product_rows={"Product name":Product_title_series, "Price":Product_price_series}
Product_Matrix_Framework=pd.DataFrame(product_rows)
elif select_option_BV == 'b':
Product_Matrix_Framework.plot(x="Product name",y="Price")
elif select_option_BV == 'c':
print(Product_Matrix_Framework.sort_values("Price"))
elif select_option_BV == 'd':
Product_Matrix_Framework.to_excel("Products.xlsx")
elif select_option_BV == 'e':
print("CY@ exiting...")
break
而且我不知道我犯了什么錯誤，但我無法讓它發揮作用！我的大學專案需要它，但我現在堅持下去，我不知道我做錯了什么，當我在控制臺中寫“a”時沒有任何作用，如果我寫任何其他信中說：“名稱'Product_Matrix_Framework'未定義”請幫忙！謝謝你。
uj5u.com熱心網友回復：
在查看了一些檔案站點和網站本身之后（我假設您想要帶有 CSS 選擇器的元素productDesc），我想我明白了您想要做什么。
如果你想通過它的 CSS 選擇器選擇一個元素，（productDesc在這個例子中是一個 CSS 選擇器）你應該使用：
title_elements = child_element.find_elements_by_css_selector("productDesc")
它應該回傳一個包含所有帶有 CSS 選擇器的子元素的陣列productDesc，然后您可以遍歷該陣列以獲取每個元素的文本。就像是：
titles = []
for title_element in title_elements:
titles.append(title_elements.get_attribute("innerHtml")
查看網站，每個child_element可能都有一個或多個帶有productDescCSS 選擇器的元素，因此您應該將它們存盤在一個陣列中，以防有多個元素。您的代碼似乎假設只有一個。
例如：
...
while True:
select_option_BV = input("Select option:")
if select_option_BV == 'a':
for child_element in children_element:
titles = []
for title_element in child_element.find_elements_by_css_selector("productDesc"):
titles.append(title_element.get_attribute("innerText"))
product_BV.append(titles) # Product_BV will now be an array containing more arrays
...
uj5u.com熱心網友回復：
我認為elementHTML沒有必要。您只需children_element通過搜索 css 選擇器來使用。
...
driver_BV.get("https://www.qvc.com/handbags-and-luggage/handbags/clutches/_/N-1cknw/c.html?qq=mh")
product_BV=[]
price_BV=[]
Final=[]
children_element=driver_BV.find_elements_by_css_selector(".plContent .galleryItem")
它將找到 60 件商品。之后，錯誤不斷發生，我認為您需要在for回圈中修復這些錯誤。
uj5u.com熱心網友回復：
@Nathcat
from selenium.webdriver.chrome.service import Service
from webdriver_manager.chrome import ChromeDriverManager
import pandas as pd
driver_RA= webdriver.Chrome(service=Service(ChromeDriverManager().install()))
driver_RA.get("https://www.qvc.com/handbags-and-luggage/handbags/clutches/_/N-1cknw/c.html?qq=mh")
product_RA=[]
price_RA=[]
elementHTML=driver_RA.find_element("class name", 'plContent')
Final=[]
children_element=elementHTML.find_elements("class name", 'productInfoWrapper')
print('''
a. Retrieve data
b. Create the graph
c. Display the matrix
d. Save to Excel file
e. Exit
''')
while True:
select_option_RA = input("Select option:")
if select_option_RA == 'a':
for child_element in children_element:
title=child_element.find_element("class name", 'productDesc').get_attribute('innerText')
#Trying to print every SECOND string from productDesc (because for some reason every
#first innerText from productDesc is empty
product_RA.append(title)
titlu=child_element.find_element("class name", 'priceSell')
price=titlu.get_attribute('innerText')
price_RA.append(price)
print ('Products:', product_RA)
print ('Prices:', price_RA)
price=price.replace("€","")
Final.append(price)
Product_title_series=pd.Series(product_RA)
Product_price_series=pd.Series(Final)
product_rows={"Product name":Product_title_series, "Price":Product_price_series}
Product_Matrix_Framework=pd.DataFrame(product_rows)
elif select_option_RA == 'b':
Product_Matrix_Framework.plot(x="Product name",y="Price")
elif select_option_RA == 'c':
print(Product_Matrix_Framework.sort_values("Price"))
elif select_option_RA == 'd':
Product_Matrix_Framework.to_excel("Products.xlsx")
elif select_option_RA == 'e':
print("Exiting beep boop beep.")
break```
I did this, but I can't get the products, if I run it and type "a", it shows the prices but not the products
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標籤：Python python-3.x 熊猫 硒 硒网络驱动程序