const {app, BrowserWindow} = require('electron') const path = require('path') const url = require('url') let win function creatWindow() { win = new BrowserWindow({width: 1200,height:800}) win.loadURL( url.format({ pathname: path.join(__dirname, 'index.html'), protocol: 'file:',//'http:' slashes: true }) ) win.on('close',()=>{ win = null }) } app.on("ready",creatWindow)