在 Playwright for Python 中，如何获取与 ElementHandle 相关的元素（children、parent、grandparent、兄弟姐妹）？

Question

在 playwright-python 我知道我可以使用 querySelector().

得到一个 elementHandle

示例（同步）：

from playwright import sync_playwright

with sync_playwright() as p:
    for browser_type in [p.chromium, p.firefox, p.webkit]:
        browser = browser_type.launch()
        page = browser.newPage()  
        page.goto('https://duckduckgo.com/')
        element = page.querySelector('input[id=\"search_form_input_homepage\"]')

如何根据这个elementHandle获取与this相关的元素？ IE。 parent、祖父parent、兄弟姐妹、children 把手？

Answer 1

使用 querySelector() / querySelectorAll XPath (XML Path Language) 允许您检索 elementHandle（分别是句柄的集合）。一般来说，XPath 可用于浏览 XML 文档中的元素和属性。

from playwright import sync_playwright

with sync_playwright() as p:
    for browser_type in [p.chromium, p.firefox, p.webkit]:
        browser = browser_type.launch(headless=False)
        page = browser.newPage()
        page.goto('https://duckduckgo.com/')
        element = page.querySelector('input[id=\"search_form_input_homepage\"]')
        
        parent = element.querySelector('xpath=..')
        grandparent = element.querySelector('xpath=../..')
        siblings = element.querySelectorAll('xpath=following-sibling::*')
        children = element.querySelectorAll('xpath=child::*')

        browser.close()

在 Playwright for Python 中，如何获取与 ElementHandle 相关的元素（children、parent、grandparent、兄弟姐妹）？

In Playwright for Python, how do I get elements relative to ElementHandle (children, parent, grandparent, siblings)?

python

dom

handle

playwright

playwright-python