class:elementhandle · Puppeteer 中文文檔

# class:elementhandle ### class: ElementHandle v0.9.0 > **注意** [ElementHandle](#?product=Puppeteer&version=v1.11.0&show=api-class-elementhandle "ElementHandle") 類繼承自 [JSHandle](#?product=Puppeteer&version=v1.11.0&show=api-class-jshandle "JSHandle")。 ElementHandle 表示一個頁內的 DOM 元素。ElementHandles 可以通過 [page.$](#?product=Puppeteer&version=v1.11.0&show=api-pageselector) 方法創建。 ``` const puppeteer = require('puppeteer');puppeteer.launch().then(async browser => { const page = await browser.newPage(); await page.goto('https://google.com'); const inputElement = await page.$('input[type=submit]'); await inputElement.click(); // ...}); ``` 除非處理了句柄 [disposed](#?product=Puppeteer&version=v1.11.0&show=api-elementhandledispose)，否則 ElementHandle 會阻止垃圾收集中的 DOM 元素。 ElementHandles 在其原始幀被導航時將會自動處理。 ElementHandle 實例可以在 [`page.$eval()`](#?product=Puppeteer&version=v1.11.0&show=api-pageevalselector-pagefunction-args) 和 [`page.evaluate()`](#?product=Puppeteer&version=v1.11.0&show=api-pageevaluatepagefunction-args) 方法中作為參數。 #### Methods - [elementHandle.$(selector)](#?product=Puppeteer&version=v1.11.0&show=api-elementhandleselector)v0.9.0 - [elementHandle.$$(selector)](#?product=Puppeteer&version=v1.11.0&show=api-elementhandleselector-1)v0.9.0 - [elementHandle.$eval(selector, pageFunction, ...args)](#?product=Puppeteer&version=v1.11.0&show=api-elementhandleevalselector-pagefunction-args)v0.9.0 - [elementHandle.$$eval(selector, pageFunction, ...args)](#?product=Puppeteer&version=v1.11.0&show=api-elementhandleevalselector-pagefunction-args-1)v0.9.0 - [elementHandle.$x(expression)](#?product=Puppeteer&version=v1.11.0&show=api-elementhandlexexpression)v0.9.0 - [elementHandle.asElement()](#?product=Puppeteer&version=v1.11.0&show=api-elementhandleaselement)v0.9.0 - [elementHandle.boundingBox()](#?product=Puppeteer&version=v1.11.0&show=api-elementhandleboundingbox)v0.9.0 - [elementHandle.boxModel()](#?product=Puppeteer&version=v1.11.0&show=api-elementhandleboxmodel)v0.9.0 - [elementHandle.click(\[options\])](#?product=Puppeteer&version=v1.11.0&show=api-elementhandleclickoptions)v0.9.0 - [elementHandle.contentFrame()](#?product=Puppeteer&version=v1.11.0&show=api-elementhandlecontentframe)v0.9.0 - [elementHandle.dispose()](#?product=Puppeteer&version=v1.11.0&show=api-elementhandledispose)v0.9.0 - [elementHandle.executionContext()](#?product=Puppeteer&version=v1.11.0&show=api-elementhandleexecutioncontext)v0.9.0 - [elementHandle.focus()](#?product=Puppeteer&version=v1.11.0&show=api-elementhandlefocus)v0.9.0 - [elementHandle.getProperties()](#?product=Puppeteer&version=v1.11.0&show=api-elementhandlegetproperties)v0.9.0 - [elementHandle.getProperty(propertyName)](#?product=Puppeteer&version=v1.11.0&show=api-elementhandlegetpropertypropertyname)v0.9.0 - [elementHandle.hover()](#?product=Puppeteer&version=v1.11.0&show=api-elementhandlehover)v0.9.0 - [elementHandle.isIntersectingViewport()](#?product=Puppeteer&version=v1.11.0&show=api-elementhandleisintersectingviewport)v0.9.0 - [elementHandle.jsonValue()](#?product=Puppeteer&version=v1.11.0&show=api-elementhandlejsonvalue)v0.9.0 - [elementHandle.press(key\[, options\])](#?product=Puppeteer&version=v1.11.0&show=api-elementhandlepresskey-options)v0.9.0 - [elementHandle.screenshot(\[options\])](#?product=Puppeteer&version=v1.11.0&show=api-elementhandlescreenshotoptions)v0.9.0 - [elementHandle.tap()](#?product=Puppeteer&version=v1.11.0&show=api-elementhandletap)v0.9.0 - [elementHandle.toString()](#?product=Puppeteer&version=v1.11.0&show=api-elementhandletostring)v0.9.0 - [elementHandle.type(text\[, options\])](#?product=Puppeteer&version=v1.11.0&show=api-elementhandletypetext-options)v0.9.0 - [elementHandle.uploadFile(...filePaths)](#?product=Puppeteer&version=v1.11.0&show=api-elementhandleuploadfilefilepaths)v0.9.0 ### Methods #### elementHandle.$(selector)v0.9.0 - `selector` <[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "String")> 用于選取頁面 DOM 元素的 [CSS Selector](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Selectors) - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")<?[ElementHandle](#?product=Puppeteer&version=v1.11.0&show=api-class-elementhandle "ElementHandle")>> 該方法在頁面內運行 `element.querySelector`。如果沒有元素匹配選擇器，則返回值為 `null`。 #### elementHandle.$$(selector)v0.9.0 - `selector` <[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "String")> 用于選取頁面 DOM 元素的 [CSS Selector](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Selectors) - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")<[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array "Array")<[ElementHandle](#?product=Puppeteer&version=v1.11.0&show=api-class-elementhandle "ElementHandle")>>> 該方法在頁面內運行 `element.querySelectorAll`。如果沒有元素匹配選擇器，則返回值為 `[]`。 #### elementHandle.$eval(selector, pageFunction, ...args)v0.9.0 - `selector` <[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "String")> 用于選取頁面 DOM 元素的 [CSS Selector](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Selectors) - `pageFunction` <[function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function "Function")> 在瀏覽器上下文中執行的函數 - `...args` <...[Serializable](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#Description "Serializable")|[JSHandle](#?product=Puppeteer&version=v1.11.0&show=api-class-jshandle "JSHandle")> 傳遞給 `pageFunction` 的參數 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")<[Serializable](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#Description "Serializable")>> Promise which resolves to the return value of `pageFunction` 這個方法在元素中運行 `document.querySelector` 并將它作為第一個參數傳遞給 `pageFunction`。如果沒有與 `selector` 匹配的元素，則該方法將拋出個錯誤。如果 `pageFunction` 返回一個 [Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")，那么 `frame.$eval` 將等待承諾解析并返回它的值。例子: ``` const tweetHandle = await page.$('.tweet');expect(await tweetHandle.$eval('.like', node => node.innerText)).toBe('100');expect(await tweetHandle.$eval('.retweets', node => node.innerText)).toBe('10'); ``` #### elementHandle.$$eval(selector, pageFunction, ...args)v0.9.0 - `selector` <[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "String")> 用于選取頁面 DOM 元素的 [CSS Selector](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Selectors) - `pageFunction` <[function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function "Function")> Function to be evaluated in browser context - `...args` <...[Serializable](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#Description "Serializable")|[JSHandle](#?product=Puppeteer&version=v1.11.0&show=api-class-jshandle "JSHandle")> Arguments to pass to `pageFunction` - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")<[Serializable](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#Description "Serializable")>> Promise which resolves to the return value of `pageFunction` 該方法在元素內運行 `document.querySelectorAll`，并將其作為第一個參數傳遞給 `pageFunction`。如果沒有與 `selector` 匹配的元素，則該方法將拋出一個錯誤。如果 `pageFunction` 返回 [Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")，那么`frame.$$eval` 將等待 promise 解析并返回其值。例子: ``` <div class="feed"> <div class="tweet">Hello!</div> <div class="tweet">Hi!</div> </div> const feedHandle = await page.$('.feed');expect(await feedHandle.$$eval('.tweet', nodes => nodes.map(n => n.innerText)).toEqual(['Hello!', 'Hi!']); ``` #### elementHandle.$x(expression)v0.9.0 - `expression` <[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "String")> Expression to [evaluate](https://developer.mozilla.org/en-US/docs/Web/API/Document/evaluate). - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")<[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array "Array")<[ElementHandle](#?product=Puppeteer&version=v1.11.0&show=api-class-elementhandle "ElementHandle")>>> 該方法計算相對于 elementHandle 的 XPath 表達式。如果不存在這樣的元素，該方法將解析為一個空的數組。 #### elementHandle.asElement()v0.9.0 - returns: <[ElementHandle](#?product=Puppeteer&version=v1.11.0&show=api-class-elementhandle "ElementHandle")> #### elementHandle.boundingBox()v0.9.0 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")<?[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object")>> - x <[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type "Number")> 元素的 x 坐標（以像素為單位）。 - y <[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type "Number")> 元素的 y 坐標（以像素為單位）。 - width <[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type "Number")> 元素的像素寬度。 - height <[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type "Number")> 元素的像素高度。此方法返回元素的邊界框（相對于主框架），如果元素不可見，則返回 `null`。 #### elementHandle.boxModel()v0.9.0 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")<?[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object")>> - content <[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array "Array")<[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object")>> Content box, represented as an array of {x, y} points. - padding <[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array "Array")<[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object")>> Padding box, represented as an array of {x, y} points. - border <[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array "Array")<[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object")>> Border box, represented as an array of {x, y} points. - margin <[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array "Array")<[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object")>> Margin box, represented as an array of {x, y} points. - width <[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type "Number")> 元素的寬度. - height <[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type "Number")> 元素的高度. 改方法返回元素的盒模型，如果元素不可見，則返回 `null`。盒模型被表示為一組點；每個 Point 都是一個對象 `{x，y}`。盒模型的點按順時針排序。 #### elementHandle.click(\[options\])v0.9.0 - `options` <[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object")> - `button` <[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "String")> `left`, `right`, 或 `middle`, 默認是 `left`。 - `clickCount` <[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type "Number")> 默認是 1. 見 [UIEvent.detail](https://developer.mozilla.org/en-US/docs/Web/API/UIEvent/detail "UIEvent.detail"). - `delay` <[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type "Number")> `mousedown` 和 `mouseup` 之間等待的時間。默認是 0。 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")> Promise which resolves when the element is successfully clicked. Promise gets rejected if the element is detached from DOM. 如果需要，此方法將元素滾動到視野中，然后使用 [page.mouse](#?product=Puppeteer&version=v1.11.0&show=api-pagemouse) 單擊元素的中心。如果該元素從 DOM 中分離，則該方法將引發錯誤。 #### elementHandle.contentFrame()v0.9.0 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")<?[Frame](#?product=Puppeteer&version=v1.11.0&show=api-class-frame "Frame")>> 解析為引用 iframe 節點的元素句柄的內容框架，否則為空 #### elementHandle.dispose()v0.9.0 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")> Promise which resolves when the element handle is successfully disposed. `elementHandle.dispose` 方法用于停止引用元素的句柄。 #### elementHandle.executionContext()v0.9.0 - returns: [ExecutionContext](#?product=Puppeteer&version=v1.11.0&show=api-class-executioncontext "ExecutionContext") #### elementHandle.focus()v0.9.0 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")> 在元素上調用 [focus](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/focus)。 #### elementHandle.getProperties()v0.9.0 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")<[Map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map "Map")<[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "String"), [JSHandle](#?product=Puppeteer&version=v1.11.0&show=api-class-jshandle "JSHandle")>>> 該方法返回一個包含屬性名稱作為鍵的映射和屬性值的 JSHandle 實例。 ``` const listHandle = await page.evaluateHandle(() => document.body.children);const properties = await listHandle.getProperties();const children = [];for (const property of properties.values()) { const element = property.asElement(); if (element) children.push(element);}children; // body持有 elementHandles 給 document.body 的所有子項。 ``` #### elementHandle.getProperty(propertyName)v0.9.0 - `propertyName` <[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "String")> property to get - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")<[JSHandle](#?product=Puppeteer&version=v1.11.0&show=api-class-jshandle "JSHandle")>> 從 objectHandle 中獲取一個屬性。 #### elementHandle.hover()v0.9.0 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")> Promise which resolves when the element is successfully hovered. 如果需要，此方法將元素滾動到視野中，然后使用 [page.mouse](#?product=Puppeteer&version=v1.11.0&show=api-pagemouse) 將鼠標懸停在元素的中心。如果元素從 DOM 中分離（不存在），則該方法將拋出一個錯誤。 #### elementHandle.isIntersectingViewport()v0.9.0 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")<[boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type "Boolean")>> Resolves to true if the element is visible in the current viewport. #### elementHandle.jsonValue()v0.9.0 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")<[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object")>> 返回對象的JSON表示。 JSON是通過對頁面上的對象運行 [`JSON.stringify`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify) 生成的，因此 [`JSON.parse`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse) 在puppeteer中。 > **注意** 如果引用的對象不可字符串化，該方法將拋出（一個錯誤）。 #### elementHandle.press(key\[, options\])v0.9.0 - `key` <[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "String")> 按鍵的名稱，例如 `ArrowLeft`。見 [USKeyboardLayout](https://github.com/GoogleChrome/puppeteer/blob/master/docs/../lib/USKeyboardLayout.js "USKeyboardLayout") 以獲取所有鍵名稱的列表。 - `options` <[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object")> - `text` <[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "String")> 如果指定，則使用此文本生成輸入事件。 - `delay` <[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type "Number")> `keydown` 和 `keyup` 之間等待的時間。默認是 0。 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")> 聚焦元素，然后使用 [`keyboard.down`](#?product=Puppeteer&version=v1.11.0&show=api-keyboarddownkey-options) 和 [`keyboard.up`](#?product=Puppeteer&version=v1.11.0&show=api-keyboardupkey)。如果 `key` 是一個單獨的字符，并且除了 `Shift` 之外沒有（其他）修飾鍵被按下，`keypress` / `input` 事件也會被生成。可以指定 `text` 選項來強制生成輸入事件。 > **注意** 修飾鍵 DO 會影響 `elementHandle.press`。按住 Shift 鍵將以大寫形式輸入文本。 #### elementHandle.screenshot(\[options\])v0.9.0 - `options` <[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object")> 與 [page.screenshot](#?product=Puppeteer&version=v1.11.0&show=api-pagescreenshotoptions) 選項相同。 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")<[Buffer](https://nodejs.org/api/buffer.html#buffer_class_buffer "Buffer")>> Promise which resolves to buffer with captured screenshot. 如果需要，此方法將元素滾動到視圖中，然后使用 [page.screenshot](#?product=Puppeteer&version=v1.11.0&show=api-pagescreenshotoptions) 截取元素的屏幕截圖。如果該元素從 DOM 中分離，則該方法將拋出一個錯誤。 #### elementHandle.tap()v0.9.0 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")> Promise which resolves when the element is successfully tapped. Promise gets rejected if the element is detached from DOM. 如果需要，此方法將元素滾動到視野中，然后使用 [touchscreen.tap](#?product=Puppeteer&version=v1.11.0&show=api-touchscreentapx-y) 在元素的中心點擊。如果該元素從 DOM 中分離，則該方法將拋出一個錯誤。 #### elementHandle.toString()v0.9.0 - returns: <[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "String")> #### elementHandle.type(text\[, options\])v0.9.0 - `text` <[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "String")> 要輸入到焦點元素中的文本。 - `options` <[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object")> - `delay` <[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type "Number")> 按鍵之間的等待時間，默認是 0。 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")> 聚焦元素，然后為文本中的每個字符發送 `keydown`，`keypress` / `input` 和 `keyup` 事件。按一個特殊的鍵，像 `Control` 或 `ArrowDown`，使用 [`elementHandle.press`](#?product=Puppeteer&version=v1.11.0&show=api-elementhandlepresskey-options)。 ``` elementHandle.type('Hello'); // 立即輸入elementHandle.type('World', {delay: 100}); // 慢點輸入，像一個用戶 ``` 鍵入文本字段然后提交表單的例子： ``` const elementHandle = await page.$('input');await elementHandle.type('some text');await elementHandle.press('Enter'); ``` #### elementHandle.uploadFile(...filePaths)v0.9.0 - `...filePaths` <...[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "String")> 設置輸入這些路徑的文件的值。如果某些 `filePaths` 是相對路徑，那么它們將被解析為相對于 [當前工作目錄](https://nodejs.org/api/process.html#process_process_cwd)。 - returns: <[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise")> 這個方法期望 `elementHandle` 指向一個 [輸入元素](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input)。 ![](images/pptr.png) puppeteer.js中文網|class:elementhandle puppeteer.js中文文檔, puppeteer chrome, puppeteer firefox, puppeteer api 中文文檔 puppeteer.js中文網包含了Puppeteer中文文檔，最新資訊，應用案例等。Puppeteer 是一個 Node 庫，它提供了一個高級 API 來通過 DevTools 協議控制 Chromium 或 Chrome。