wangshaoqing
321bbff1c1
- 新增 DrissionPage 基础教程(01-05) - 新增 Playwright 基础教程(01-05) - 新增网络基础教程(01-05) - 新增 test_learning_examples.py 单元测试 - 更新 .gitignore 忽略 learning/*/output/ 目录
44 lines
1.2 KiB
Python
44 lines
1.2 KiB
Python
"""
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练习 03: 用 Playwright 等待元素并定位元素。
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目标:
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1. 练会 `page.locator(...)`
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2. 练会 `page.get_by_role(...)`
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3. 练会等待元素出现
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4. 成功打印一个稳定元素的文本内容
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建议:
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- 先选一个结构稳定的页面，不要一上来就拿复杂站点练
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- 如果定位不到元素，先打印页面标题和 URL，确认你打开的是对的页面
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- 第一版优先使用 role / text 这种更直观的定位方式
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运行:
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./.venv/bin/python learning/playwright_basics/03_wait_and_locate.py
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"""
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DEFAULT_URL = "https://example.com/"
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def main() -> None:
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from playwright.sync_api import sync_playwright
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with sync_playwright() as playwright:
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browser = playwright.chromium.launch(headless=False)
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page = browser.new_page()
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page.goto(DEFAULT_URL)
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heading = page.get_by_role("heading", name="Example Domain")
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heading.wait_for()
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print(f"[INFO] 标题文本: {heading.text_content()}")
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first_paragraph = page.locator("p").first
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first_paragraph.wait_for()
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print(f"[INFO] 第一段文本: {first_paragraph.text_content()}")
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input("按回车退出...")
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browser.close()
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if __name__ == "__main__":
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main()
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