引言 随着网络应用的不断发展,自动化测试和网页数据抓取变得越来越重要。在众多自动化工具中, Playwright 是一个功能强大的工具,可以帮助我们轻松地实现这些需求。今天,我们将深入了解如何使用 Python 的 play…
Playwright 是一个由 Microsoft 开发的开源自动化框架,支持多个浏览器(包括 Chromium、Firefox 和 WebKit)。它不仅可以用于自动化测试,还可以用于数据抓取、网站监控等任务。Playwright 提供了丰富的 API,使得开发者可以方便地编写自动化脚本。 2. 异步(Async)在 Python 中的含义和用途 在Python 中,异步编程允许代码在...
首先,我们需要安装Playwright库,可以通过以下命令来安装: pipinstallplaywright 1. 导入sync_playwright和async_playwright 在Python文件中导入sync_playwright和async_playwright: fromplaywright.sync_apiimportsync_playwrightfromplaywright.async_apiimportasync_playwright 1. 2. 创建sync_playwright和async_playwright实例 使用...
Playwright使用异步方法的正确姿势 如下代码会正常运行,通过await可以保证脚本的运行顺序 async def playwright_async_demo(): async with async_playwright() as p: browser = await p.chromium.launch(channel="chrome") page = await browser.new_page() await page.goto("http://www.baidu.com") asyncio.run...
Context: Playwright Version: Latest Operating System: Windows Python version: 3.8.6 Browser: Chromium Extra: async def get_offers(self): async with async_playwright() as playwright: chromium = playwright.chromium browser = await chromium...
playwright = await Playwright.CreateAsync(); var userDataDir = $"{Directory.GetCurrentDirectory()}\\UserData"; var context = await playwrigh
async_api import async_playwright async def run(): async with async_playwright() as p: browser = await p.chromium.launch(headless=False) # 启动浏览器 page = await browser.new_page() await page.goto("https://example.com") print(await page.title()) # 获取页面标题 await browser.close()...
JavaScript中的async/await是一种用于处理异步操作的语法糖。它可以让我们以同步的方式编写异步代码,使代码更加清晰和易于理解。然而,async/await并不适用于条件。 在Java...
#!/usr/bin/python import asyncio from playwright.async_api import async_playwright async def main(): async with async_playwright() as playwright: webkit = playwright.webkit browser = await webkit.launch() page = await browser.new_page() url = 'http://webcode.me' await page.goto(url) ...
python 中playwright 的sync_playwright与async_playwright display在python中,《python编程从入门到实践》图林程序设计丛书学习笔记项目一外星人入侵pygame中的几个模块1>display模块pygame.display.set_mode(resolution=(0,0),flags=0,depth=0)返回的是一个surface对