Playwright _ API.pdf
Playwright Python API Playwright 是一个基于浏览器自动化的框架,提供了 Python 版本的 API 接口,用于自动化浏览器操作。下面是 Playwright Python API 的一些重要知识点: 1. Playwright 模块提供了一个方法来启动浏览器实例。通过使用 Playwright,可以驱动自动化浏览器操作。例如,可以使用以下代码来启动浏览器: ``` from playwright.sync_api import sync_playwright def run(playwright): chromium = playwright.chromium browser = chromium.launch() page = browser.new_page() page.goto("http://example.com") # 其他操作... browser.close() with sync_playwright() as playwright: run(playwright) ``` 2. Playwright 提供了多种浏览器类型,包括 Chromium、Firefox 和 WebKit。可以使用以下代码来启动不同的浏览器: ``` chromium = playwright.chromium firefox = playwright.firefox webkit = playwright.webkit ``` 3. Playwright 提供了设备模拟功能,可以模拟不同的设备类型,例如 iPhone、Android 等。可以使用以下代码来模拟设备: ``` devices = playwright.devices iphone = devices["iPhone 6"] browser = webkit.launch() context = browser.new_context(iphone) page = context.new_page() page.goto("http://example.com") ``` 4. Playwright 提供了选择器功能,可以使用选择器来选择页面元素。例如,可以使用以下代码来选择页面元素: ``` selectors = playwright.selectors ``` 5. Playwright 提供了浏览器实例的控制功能,可以使用以下代码来终止浏览器实例: ``` playwright.stop() ``` 6. Playwright 提供了 Sync 和 Async 两种模式,可以根据需要选择合适的模式。例如,可以使用以下代码来启动浏览器实例: ``` from playwright.sync_api import sync_playwright playwright = sync_playwright().start() browser = playwright.chromium.launch() page = browser.new_page() page.goto("http://whatsmyuseragent.org/") ``` 7. Playwright 提供了截图功能,可以使用以下代码来截取页面: ``` page.screenshot(path="example.png") ``` Playwright Python API 提供了丰富的功能,可以满足不同的自动化需求。通过学习和掌握 Playwright Python API,可以提高自动化测试和开发的效率。