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在index.html中添加一个按钮,每按一次从本地读取一次文件:
<button id="btn1">按钮1</button>
修改preload.js:// preload.js // All of the Node.js APIs are available in the preload process. // It has the same sandbox as a Chrome extension. window.addEventListener('DOMContentLoaded', () => { 省略号 let readAndDisplay = () => { let fs = require("fs"); fs.readFile('local_file.txt', (err, data) => { if (err) return console.error(err); console.log(data.toString()); let myNode = document.createTextNode(data.toString()); document.body.insertBefore(myNode, document.body.firstChild); }); } document.querySelector('#btn1').addEventListener("click", event => { readAndDisplay(); }) 省略号 })