Playwright 模块提供了一种启动浏览器实例的方法。以下是使用 Playwright 进行自动化操作的典型示例： 🌐 Playwright module provides a method to launch a browser instance. The following is a typical example of using Playwright to drive automation: 此对象可用于启动或连接到 Chromium，并返回 Browser 实例。 🌐 This object can be used to launch or connect to Chromium, returning instances of Browser . 返回一个字典，用于与 browser.newContext() 或 browser.newPage() 一起使用的设备。 🌐 Returns a dictionary of devices to be used with browser.newContext() or browser.newPage() . 如果无法完成请求，Playwright 的方法可能会抛出错误。例如，如果选择器在给定的时间范围内没有匹配到任何节点， locator.waitFor() 可能会失败。 🌐 Playwright methods might throw errors if they are unable to fulfill a request. For example, locator.waitFor() might fail if the selector doesn't match any nodes during the given timeframe. 对于某些类型的错误，Playwright 使用特定的错误类。这些类可以通过 playwright.errors 获取。 🌐 For certain types of errors Playwright uses specific error classes. These classes are available via playwright.errors . 🌐 An example of handling a timeout error: Object TimeoutError function TimeoutError 类。 TimeoutError function TimeoutError 类。 TimeoutError function TimeoutError 类。

此对象可用于启动或连接到 Firefox，并返回 Browser 实例。 🌐 This object can be used to launch or connect to Firefox, returning instances of Browser . 公开可用于 Web API 测试的 API。 🌐 Exposes API that can be used for the Web API testing. 选择器可用于安装自定义选择器引擎。有关更多信息，请参阅 可扩展性 。 🌐 Selectors can be used to install custom selector engines. See extensibility for more information. 此对象可用于启动或连接到 WebKit，并返回 Browser 的实例。 🌐 This object can be used to launch or connect to WebKit, returning instances of Browser . 属性 chromium devices errors firefox request selectors webkit chromium devices errors firefox request selectors webkit devices errors firefox request selectors webkit errors firefox request selectors webkit firefox request selectors webkit request selectors webkit selectors webkit