from selenium import webdriver
from selenium.webdriver.common.by import By
import time
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# 創(chuàng)建有頭瀏覽器實例
driver = webdriver.Chrome()
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try:
    # 打開網(wǎng)頁
    driver.get("https://www.example.com")
    
    # 查找元素并點擊
    search_box = driver.find_element(By.NAME, "q")
    search_box.send_keys("有頭瀏覽器")
    search_box.submit()
    
    # 暫停觀察效果
    time.sleep(3)
    
finally:
    # 關閉瀏覽器
    driver.quit()

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.by import By
import time
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# 配置無頭模式
chrome_options = Options()
chrome_options.add_argument("--headless")  # 啟用無頭模式
chrome_options.add_argument("--disable-gpu")
chrome_options.add_argument("--window-size=1920,1080")
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# 創(chuàng)建無頭瀏覽器實例
driver = webdriver.Chrome(options=chrome_options)
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try:
    # 打開網(wǎng)頁（你看不見瀏覽器窗口）
    driver.get("https://www.example.com")
    
    # 截圖驗證（這是你能看到結果的唯一方式）
    driver.save_screenshot("screenshot.png")
    
    # 查找元素并操作
    page_title = driver.title
    print(f"頁面標題: {page_title}")
    
finally:
    # 關閉瀏覽器
    driver.quit()

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.by import By
import os
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def get_driver(headless=False):
    """根據(jù)需求創(chuàng)建有頭或無頭瀏覽器"""
    chrome_options = Options()
    
    if headless:
        chrome_options.add_argument("--headless")
        chrome_options.add_argument("--disable-gpu")
        chrome_options.add_argument("--window-size=1920,1080")
    
    driver = webdriver.Chrome(options=chrome_options)
    return driver
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# 開發(fā)時用有頭模式
driver = get_driver(headless=False)
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# 生產(chǎn)環(huán)境用無頭模式
# driver = get_driver(headless=True)
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try:
    driver.get("https://www.example.com")
    print("頁面加載成功！")
    
finally:
    driver.quit()

import time
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
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def test_performance(mode, url, iterations=10):
    chrome_options = Options()
    if mode == "headless":
        chrome_options.add_argument("--headless")
        chrome_options.add_argument("--disable-gpu")
    
    driver = webdriver.Chrome(options=chrome_options)
    
    start_time = time.time()
    
    for i in range(iterations):
        driver.get(url)
        title = driver.title
    
    end_time = time.time()
    driver.quit()
    
    return end_time - start_time
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# 測試有頭模式
headful_time = test_performance("headful", "https://www.example.com", 10)
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# 測試無頭模式
headless_time = test_performance("headless", "https://www.example.com", 10)
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print(f"有頭模式耗時: {headful_time:.2f}秒")
print(f"無頭模式耗時: {headless_time:.2f}秒")
print(f"無頭模式快了: {(headful_time - headless_time) / headful_time * 100:.1f}%")

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
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def setup_driver():
    chrome_options = Options()
    chrome_options.add_argument("--headless")
    chrome_options.add_argument("--disable-gpu")
    chrome_options.add_argument("--window-size=1920,1080")
    return webdriver.Chrome(options=chrome_options)
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driver = setup_driver()
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try:
    driver.get("https://www.example.com")
    
    # 關鍵步驟截圖
    driver.save_screenshot("step1_landing.png")
    
    # 執(zhí)行操作
    search_box = driver.find_element(By.NAME, "q")
    search_box.send_keys("調(diào)試截圖")
    search_box.submit()
    
    # 操作后截圖
    driver.save_screenshot("step2_search_result.png")
    
finally:
    driver.quit()

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
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def setup_stealth_driver():
    chrome_options = Options()
    chrome_options.add_argument("--headless")
    
    # 添加偽裝參數(shù)
    chrome_options.add_argument("--disable-blink-features=AutomationControlled")
    chrome_options.add_experimental_option("excludeSwitches", ["enable-automation"])
    chrome_options.add_experimental_option('useAutomationExtension', False)
    
    driver = webdriver.Chrome(options=chrome_options)
    
    # 修改navigator.webdriver屬性
    driver.execute_cdp_cmd("Page.addScriptToEvaluateOnNewDocument", {
        "source": """
            Object.defineProperty(navigator, 'webdriver', {
                get: () => undefined
            })
        """
    })
    
    return driver

chrome_options.add_argument("--window-size=1920,1080")  # 統(tǒng)一窗口尺寸

from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
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# 等待元素出現(xiàn)
wait = WebDriverWait(driver, 10)
element = wait.until(
    EC.presence_of_element_located((By.ID, "dynamic-content"))
)

# 始終使用try-finally確保瀏覽器被關閉
driver = webdriver.Chrome()
try:
    # 你的代碼
    pass
finally:
    driver.quit()  # 確保一定會關閉