Dialog
Dialog 对象通过 page.on("dialog") 事件按页分派。
¥Dialog objects are dispatched by page via the page.on("dialog") event.
使用 Dialog 类的示例:
¥An example of using Dialog class:
- Sync
 - Async
 
from playwright.sync_api import sync_playwright, Playwright
def handle_dialog(dialog):
    print(dialog.message)
    dialog.dismiss()
def run(playwright: Playwright):
    chromium = playwright.chromium
    browser = chromium.launch()
    page = browser.new_page()
    page.on("dialog", handle_dialog)
    page.evaluate("alert('1')")
    browser.close()
with sync_playwright() as playwright:
    run(playwright)
import asyncio
from playwright.async_api import async_playwright, Playwright
async def handle_dialog(dialog):
    print(dialog.message)
    await dialog.dismiss()
async def run(playwright: Playwright):
    chromium = playwright.chromium
    browser = await chromium.launch()
    page = await browser.new_page()
    page.on("dialog", handle_dialog)
    page.evaluate("alert('1')")
    await browser.close()
async def main():
    async with async_playwright() as playwright:
        await run(playwright)
asyncio.run(main())
除非有 page.on("dialog") 监听器,否则对话框会自动关闭。当监听器存在时,它必须是 dialog.accept() 或 dialog.dismiss() 对话框 - 否则页面将 freeze 等待对话框,并且单击等操作将永远不会完成。
¥Dialogs are dismissed automatically, unless there is a page.on("dialog") listener. When listener is present, it must either dialog.accept() or dialog.dismiss() the dialog - otherwise the page will freeze waiting for the dialog, and actions like click will never finish.
方法
¥Methods
accept
Added before v1.9当对话框被接受时返回。
¥Returns when the dialog has been accepted.
用法
¥Usage
dialog.accept()
dialog.accept(**kwargs)
参数
¥Arguments
在提示中输入的文本。如果对话框的 type 没有提示,不会造成任何影响。可选的。
¥A text to enter in prompt. Does not cause any effects if the dialog's type is not prompt. Optional.
返回
¥Returns
dismiss
Added before v1.9当对话框关闭时返回。
¥Returns when the dialog has been dismissed.
用法
¥Usage
dialog.dismiss()
返回
¥Returns
属性
¥Properties
default_value
Added before v1.9如果对话框有提示,则返回默认提示值。否则,返回空字符串。
¥If dialog is prompt, returns default prompt value. Otherwise, returns empty string.
用法
¥Usage
dialog.default_value
返回
¥Returns
message
Added before v1.9对话框中显示一条消息。
¥A message displayed in the dialog.
用法
¥Usage
dialog.message
返回
¥Returns
page
Added in: v1.34启动此对话框的页面(如果可用)。
¥The page that initiated this dialog, if available.
用法
¥Usage
dialog.page
返回
¥Returns
type
Added before v1.9返回对话框的类型,可以是 alert、beforeunload、confirm 或 prompt 之一。
¥Returns dialog's type, can be one of alert, beforeunload, confirm or prompt.
用法
¥Usage
dialog.type
返回
¥Returns