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({});']"

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  （2）找到 Sepal Width列的XPATH：

target_xpath: str = r"//tbody/tr/td[3]"

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 （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。

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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 sleep


target_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 = 1

while page < 6:
    page += 1
    sleep(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:
        break
    sleep(5)


print(f"{s=}")