pip install selenium

from selenium import webdriver
# 創(chuàng)建Chrome瀏覽器實(shí)例
driver = webdriver.Chrome(executable_path='path/to/chromedriver')

# 打開(kāi)指定網(wǎng)頁(yè)
driver.get('http://www.example.com')

# 獲取網(wǎng)頁(yè)源碼
html = driver.page_source
print(html)

# 通過(guò)ID定位
element = driver.find_element_by_id('id_name')
# 通過(guò)XPath定位
element = driver.find_element_by_xpath('//div[@class="class_name"]')
# 通過(guò)CSS選擇器定位
element = driver.find_element_by_css_selector('.class_name')

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
driver = webdriver.Chrome()
driver.get('http://www.example.com')
# 隱式等待，最長(zhǎng)等待時(shí)間為10秒
driver.implicitly_wait(10)
# 嘗試查找元素
try:
    element = driver.find_element(By.ID, 'id_name')
    print('Element found.')
except Exception as e:
    print(f'Element not found: {e}')

# 發(fā)送請(qǐng)求到指定URL
driver.get('http://www.example.com')
# 發(fā)送表單數(shù)據(jù)
driver.find_element_by_name('username').send_keys('admin')
driver.find_element_by_name('password').send_keys('123456')

# 執(zhí)行JavaScript代碼
driver.execute_script("window.scrollTo(0, document.body.scrollHeight);")

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
driver = webdriver.Chrome()
driver.get('http://www.example.com')
# 顯式等待，最長(zhǎng)等待時(shí)間為10秒
element = WebDriverWait(driver, 10).until(
    EC.presence_of_element_located((By.ID, 'some_id'))
)

from selenium import webdriver
driver = webdriver.Chrome()
driver.get('http://www.example.com')
# 強(qiáng)制等待5秒
driver.implicitly_wait(5)

from selenium.common.exceptions import NoSuchElementException
try:
    element = driver.find_element_by_id('non_existing_id')
except NoSuchElementException as e:
    print(f'Element not found: {e}')

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
driver = webdriver.Chrome()
driver.get('http://www.example.com/login')
# 輸入用戶(hù)名和密碼
username_input = driver.find_element_by_name('username')
password_input = driver.find_element_by_name('password')
username_input.send_keys('admin')
password_input.send_keys('123456')
# 點(diǎn)擊登錄按鈕
login_button = driver.find_element_by_id('login_button')
login_button.click()

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
driver = webdriver.Chrome()
driver.get('http://www.example.com')
# 等待動(dòng)態(tài)加載的元素出現(xiàn)
element = WebDriverWait(driver, 10).until(
    EC.presence_of_element_located((By.ID, 'dynamic_content'))
)
# 獲取動(dòng)態(tài)內(nèi)容
dynamic_content = element.text
print(dynamic_content)