模拟浏览器的Python爬虫工具全面深入探索

import requests
url = 'https://www.example.com'
headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.9999.999 Safari/537.36'
}
response = requests.get(url, headers=headers)
if response.status_code == 200:
    print(response.text)
else:
    print("Failed to retrieve the page")

from selenium import webdriver

url = 'https://www.example.com'

# 使用Chrome浏览器
options = webdriver.ChromeOptions()
options.add_argument('user-agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.9999.999 Safari/537.36')
driver = webdriver.Chrome(options=options)

driver.get(url)

# 获取页面内容
print(driver.page_source)

driver.quit()

from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

# 等待特定元素加载
element = WebDriverWait(driver, 10).until(
    EC.presence_of_element_located((By.CLASS_NAME, 'example-class'))
)
print(element.text)

input_element = driver.find_element_by_id('username')
input_element.send_keys('my_username')

# 模拟点击登录按钮
login_button = driver.find_element_by_id('login_button')
login_button.click()

options.add_argument('--headless')