Puppeteer笔记（四）：Puppeteer模拟键盘

一、Puppeteer模拟键盘

1、keyboard.down(key[,options])

2、keyboard.press(key[,options])

3、keyboard.type(text,options)

4、keyboard.up(key])

二、上手实例Demo

　　Puppeteer模拟键盘，功能测试：打开百度首页，输入"hello world!"，删除world，并模拟键盘按下”A"。

 1 const puppeteer = require('puppeteer');
 2 async function keyboard() {
 3     //创建一个Browser浏览器实例，并设置相关参数
 4     const browser = await puppeteer.launch({
 5         headless: false,
 6         defaultViewport: null,
 7         args: ['--start-maximized'],
 8         ignoreDefaultArgs: ['--enable-automation']
 9     });
10     //创建一个Page实例
11     const page = await browser.newPage();
12     //打开百度首页
13     await page.goto("https://www.baidu.com");
14     await page.$('#kw');
15     //键盘输入'Hello World!'
16     await page.keyboard.type('Hello World!');
17     await page.waitFor(2000);
18     //键盘按下鼠标左键
19     await page.keyboard.press('ArrowLeft');
20     //按住键盘shift
21     await page.keyboard.down('Shift');
22     for (let i = 0; i < ' World'.length; i++)
23         await page.keyboard.press('ArrowLeft');
24     await page.keyboard.up('Shift');
25     //键盘按住回车键盘
26     await page.keyboard.press('Backspace');
27     //紧接着模拟键盘按下大写的"A",
28     await page.keyboard.down('Shift');
29     await page.keyboard.press('KeyA');
30     await page.keyboard.up('Shift');
31     //结果字符串最终为 'HelloA!'
32     await page.waitFor(3000);
33     //截图并保存至keyboad.png
34     await page.screenshot({
35         path: 'keyboard.png'
36     });
37     await browser.close();
38 }
39 keyboard();