python playwright并行执行

`Playwright`是一个开源的、跨平台的库，用于自动化浏览器测试，支持`Chromium`, `Firefox`和`WebKit`三大浏览器。它提供了一套简单易用的API，可以让你编写高度可靠的浏览器操作脚本。如果你想要在Python中并行地执行`Playwright`任务，你可以利用`concurrent.futures`模块，这个模块包含了处理并发执行任务的功能。

例如，你可以创建一个`ThreadPoolExecutor`或者`ProcessPoolExecutor`来管理多个线程或进程，并将`Playwright`的`Page`对象作为任务提交给它们。下面是一个简单的例子：

from playwright.sync_api import sync_playwright
import concurrent.futures

def execute_playwright_task(page):
    # 这里写你的Playwright任务，比如打开网页、获取元素等
    browser = page.launch(headless=False)
    context = browser.new_context()
    page = context.new_page()
    page.goto("https://www.example.com")
    # ...其他操作...
    page.close()
    context.close()
    browser.close()

with sync_playwright() as p:
    # 创建并配置线程池
    with concurrent.futures.ThreadPoolExecutor(max_workers=5) as executor:
        futures = {executor.submit(execute_playwright_task, page): page for page in p.chromium.pages()}
        
        # 等待所有任务完成
        concurrent.futures.wait(futures)