4 puppeteer

4-1 找到某个元素

var ele = await page.$("#btn");
//input进行输入
await ele.type("hello world")

4-2 点击事件

await ele.click()

4-3 解析元素的内容

var content =  await page.$eval(selector,ele=>ele.value);

4-4 自动登录 —码云为例

const puppeteer = require('puppeteer');
(async () => {
  const browser = await puppeteer.launch({
      headless:false,
      defaultViewport:null
  });
  const page = await browser.newPage();
  await page.goto('https://gitee.com/login');
  var username = await page.$("#user_login");
  await username.type("18986115180")
  var pwd  = await page.$("#user_password")
  await pwd.type("xxx")
  var submit  = await page.$(".submit");
  await submit.click()
  await page.waitForTimeout(3000)
})();