我正在嘗試創建一個腳本來告訴我當天的潮汐水平selenium，但它會為我提供整周的所有數據。我怎么讓它只給我今天的數據？from selenium import webdriverfrom selenium.webdriver.common.keys import Keysfrom selenium.webdriver.common.by import Byfrom selenium.webdriver.support.ui import WebDriverWaitfrom selenium.webdriver.support import expected_conditions as EC import timeimport datetimedriver = webdriver.Chrome('/Users/judeslater/Downloads/chromedriver')driver.get('https://magicseaweed.com/Nosara-Surf-Report/445/Tide/')WebDriverWait(driver, 10).until(EC.visibility_of_element_located((By.XPATH, '//*[@id="msw-js-tide-list"]')))Day_of_Week = datetime.datetime.today().weekday()Break_Key = Day_of_Week + 1element = driver.find_elements_by_id('msw-js-tide-list')intDay = datetime.date(year=2000, month=12, day=1).weekday()days = ["MON", "TUE", "WED", "THU", "FRI", "SAT", "SUN"]def contains_word(string, target): return target in string for value in element: Ocean_Data = value print(Ocean_Data.text) time.sleep(1) if contains_word(str(Ocean_Data), days[Break_Key]) == True: break else: continue break driver.quit()
2 回答
HUH函數
TA貢獻1836條經驗 獲得超4個贊
你有很多錯誤，但主要是你的
find_elements_by_id('msw-js-tide-list')
它為您提供了所有日期作為一個元素的表格。
你應該在最后使用更復雜的xpathwith來將每一天作為單獨的元素 - 然后你可以過濾它。/div
find_elements_by_xpath('//*[@id="msw-js-tide-list"]/div')
您不必添加+1到Day_of_Week因為python開始索引0
如果你想得到明天然后更好地使用
tomorrow = today + datetime.timedelta(days=1)
0或者當你得到時使用模數移動到7
Break_Key = (Day_of_Week + 1) % 7
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import time
import datetime
days = ["MON", "TUE", "WED", "THU", "FRI", "SAT", "SUN"]
today = datetime.datetime.today()
#tomorrow = today + datetime.timedelta(days=1)
#day_of_week = tomorrow.weekday()
day_of_week = today.weekday()
selected_day = days[day_of_week]
driver = webdriver.Chrome('/Users/judeslater/Downloads/chromedriver')
#driver = webdriver.Firefox()
driver.get('https://magicseaweed.com/Nosara-Surf-Report/445/Tide/')
WebDriverWait(driver, 10).until(EC.visibility_of_element_located((By.XPATH, '//*[@id="msw-js-tide-list"]')))
all_days = driver.find_elements_by_xpath('//*[@id="msw-js-tide-list"]/div')
for ocean_data in all_days:
if selected_day in ocean_data.text:
print(ocean_data.text)
break
driver.quit()
如果您想要今天的數據，那么它可能始終是表格中的第一天，因此您all_days[1]無需檢查即可使用selected_day
隱藏div在 HTML 中，所以我必須使用[1]而不是來[0]獲取今天的數據。
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import time
import datetime
driver = webdriver.Chrome('/Users/judeslater/Downloads/chromedriver')
#driver = webdriver.Firefox()
driver.get('https://magicseaweed.com/Nosara-Surf-Report/445/Tide/')
WebDriverWait(driver, 10).until(EC.visibility_of_element_located((By.XPATH, '//*[@id="msw-js-tide-list"]')))
all_days = driver.find_elements_by_xpath('//*[@id="msw-js-tide-list"]/div')
ocean_data = all_days[1] # there is one hidden `div` which I have to skip to get today's data
print(ocean_data.text)
driver.quit()
我可以使用[2]in做同樣的事情xpath（因為python開始索引0但xpath開始于1）并在 word 中使用find_element_...without char只得到一個結果selement
ocean_data = driver.find_element_by_xpath('//*[@id="msw-js-tide-list"]/div[2]')
print(ocean_data.text)
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import time
import datetime
driver = webdriver.Chrome('/Users/judeslater/Downloads/chromedriver')
#driver = webdriver.Firefox()
driver.get('https://magicseaweed.com/Nosara-Surf-Report/445/Tide/')
WebDriverWait(driver, 10).until(EC.visibility_of_element_located((By.XPATH, '//*[@id="msw-js-tide-list"]')))
ocean_data = driver.find_element_by_xpath('//*[@id="msw-js-tide-list"]/div[2]')
print(ocean_data.text)
driver.quit()
吃雞游戲
TA貢獻1829條經驗 獲得超7個贊
for value in element:
為什么不使用 element[0] 而不是這個 for 循環，因為您只需要該列表的第一個元素（'msw-js-tide-list'），它給出了今天的日期。
Ocean_Data = element[0]
print(Ocean_Data.text)
time.sleep(1)
if contains_word(str(Ocean_Data), days[Break_Key]) == True:
break
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