防止自己遗忘，故作此为记录。
鸢尾花数据集(Iris Dataset)
这道题牵扯到JS动态加载。
步骤：
（1）进入例题，需要找到按钮规律。
flip_xpath: str = r"//li/a[@onclick='getIrisData({});']"
（2）找到 Sepal Width列的XPATH：
target_xpath: str = r"//tbody/tr/td[3]"
（3）这道题比C01、C02的星级都高的原因我觉得是：
JS动态加载需要极大时间，不然网站反应不过来。
所以只能用sleep来等待了。
源代码：
# -*- coding: utf-8 -*-
# -*- file: C03.py -*-from selenium.webdriver import Chrome
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.chrome.service import Service as ChromeService
from selenium.webdriver.chrome.options import Options as ChromeOptions
from time import sleeptarget_url: str = r"https://www.spiderbuf.cn/playground/c03"
service: object = ChromeService(r"c03\chromedriver-win64\chromedriver.exe")
options: object = ChromeOptions()
options.add_experimental_option("excludeSwitches", ["enable-automation"])
options.add_argument("--disable-blink-features=AutomationControlled")driver: object = Chrome(service=service, options=options)
driver.get(target_url)target_xpath: str = r"//tbody/tr/td[3]"
flip_xpath: str = r"//li/a[@onclick='getIrisData({});']"
s: float = 0.0
page: int = 1while page < 6:page += 1sleep(1)WebDriverWait(driver, 10).until(expected_conditions.visibility_of_element_located((By.XPATH, target_xpath)))res: list = driver.find_elements(By.XPATH, target_xpath)print("time: {}".format(page), res[0].text, res[1].text)s += sum([eval(each.text) for each in res])try:driver.find_element(By.XPATH, flip_xpath.format(page)).click()except:breaksleep(5)print(f"{s=}")
