如果下面的代碼從表中刮取第一個公司名稱 IBM，我將如何對其進行編碼以從表的第一列中刮取所有公司名稱？
相關代碼：
table = wait.until(EC.presence_of_all_elements_located((By.CSS_SELECTOR, '#gridview-1070-record-2989')))
例如，我需要的下一個是#gridview-1070-record-2990 等等。
當前結果：
IBM
期望的結果：
IBM
Microsoft Corporation
Apple Corporation
Google
Tesla
etc.
完整代碼：
from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.chrome.service import Service
import pandas as pd
options = webdriver.ChromeOptions()
options.add_argument("start-maximized")
options.add_experimental_option("excludeSwitches", ["enable-automation"])
options.add_experimental_option('useAutomationExtension', False)
ser = Service("./chromedriver.exe")
browser = driver = webdriver.Chrome(service=ser)
driver.execute_cdp_cmd("Page.addScriptToEvaluateOnNewDocument", {
"source": """
Object.defineProperty(navigator, 'webdriver', {
get: () => undefined
})
"""
})
driver.execute_cdp_cmd("Network.enable", {})
driver.execute_cdp_cmd('Network.setUserAgentOverride', {"userAgent": 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.53 Safari/537.36'})
wait = WebDriverWait(driver, 30)
driver.get("https://stockrover.com")
wait.until(EC.visibility_of_element_located((By.XPATH, "/html/body/div[1]/div/section[2]/div/ul/li[2]"))).click()
user = driver.find_element(By.NAME, "username")
password = driver.find_element(By.NAME, "password")
user.clear()
user.send_keys("vibajajo64")
password.clear()
password.send_keys("vincer64")
driver.find_element(By.NAME, "Sign In").click()
wait = WebDriverWait(driver, 30)
table = wait.until(EC.presence_of_all_elements_located((By.CSS_SELECTOR, '#gridview-1070-record-2989')))
for tab in table:
print(tab.text)
uj5u.com熱心網友回復：
要從網站stockrover中的所有元素中提取和列印文本，例如IBM、Microsoft Corporation等，您需要誘導WebDriverWait for visibility_of_all_elements_located()而不是presence_of_all_elements_located( ) ，您可以使用以下任一定位器策略：<table>
使用CSS_SELECTOR：
print([my_elem.text for my_elem in WebDriverWait(driver, 20).until(EC.visibility_of_all_elements_located((By.CSS_SELECTOR, "table[id^='gridview-1070-record']")))])使用XPATH：
print([my_elem.text for my_elem in WebDriverWait(driver, 20).until(EC.visibility_of_all_elements_located((By.XPATH, "//table[starts-with(@id, 'gridview-1070-record')]")))])注意：您必須添加以下匯入：
from selenium.webdriver.support.ui import WebDriverWait from selenium.webdriver.common.by import By from selenium.webdriver.support import expected_conditions as EC
uj5u.com熱心網友回復：
您可以將相關代碼放在 for 回圈中，然后根據索引格式化輸入的字串以進行搜索，如下所示
table = []
for i in range(2989,"""the number of the last record you need"""):
table.append(wait.until(EC.presence_of_all_elements_located((By.CSS_SELECTOR, '#gridview-1070-record-{}'.format(i)))))
這將為您提供一系列公司
轉載請註明出處，本文鏈接：https://www.uj5u.com/net/436015.html
標籤：Python 硒 路径 css 选择器 网络驱动程序等待