我正在嘗試使用 selenium 從網站下載 excel 檔案。我不確定為什么代碼不允許我下載它。我得到一個退出代碼 0，所以一切都成功運行，但我沒有在我的下載中看到該檔案。
from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from webdriver_manager.chrome import ChromeDriverManager
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
def scrape_mclellan_website():
url = 'https://www.mcoscillator.com/market_breadth_data/'
s = Service(ChromeDriverManager().install())
op = webdriver.ChromeOptions()
op.add_argument('headless')
driver = webdriver.Chrome(service=s)
driver.get(url)
download_link = driver.find_element(by=By.XPATH, value='//*[@id="data_table"]/a[1]/img')
download_link.click()
scrape_mclellan_website()
uj5u.com熱心網友回復：
怎么修？
等到您嘗試單擊的元素存在，然后單擊<a>不是<img>：
download_link = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.XPATH, '//*[@id="data_table"]/a[1]')))
download_link.click()
設定您對下載檔案夾的首選項并注意視窗以正確的大小打開：
prefs = {'download.default_directory':'ENTER PATH TO DOWNLOAD FOLDER'}
options = webdriver.ChromeOptions()
options.add_argument("--window-size=1920,1080")
options.add_argument("--start-maximized")
options.add_argument("--headless")
options.add_experimental_option("prefs",prefs)
示例（硒 4）
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
service = Service(executable_path='ENTER YOUR PATH TO CHROMEDRIVER')
prefs = {'download.default_directory':'ENTER PATH TO DOWNLOAD FOLDER'}
options = webdriver.ChromeOptions()
options.add_argument("--window-size=1920,1080")
options.add_argument("--start-maximized")
options.add_argument("--headless")
options.add_experimental_option("prefs",prefs)
driver = webdriver.Chrome(service=service, options=options)
driver.get('https://www.mcoscillator.com/market_breadth_data/')
download_link = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.XPATH, '//*[@id="data_table"]/a[1]')))
download_link.click()
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