renderer.js 

const { ipcRenderer } = require('electron')

window.addEventListener('DOMContentLoaded', () => {

ipcRenderer.send('message', '情人节快乐')

ipcRenderer.on('aaaa', (event, arg) => {

console.log(arg,'这时候的console已经不会打印到控制台了,但是页面代码还是会执行 并且页面无误')

document.getElementById('sendMsg').innerHTML = arg

})

})

main.js 

app.on('ready', () => {

const mainWindow = new BrowserWindow({

width: 666,

height: 666,

webPreferences: {

nodeIntegration: true

}

})

mainWindow.loadFile('index.html');

ipcMain.on('message', (event,arg) => {

console.log(arg)

event.sender.send('aaaa', '23432')

})

});