myApp/main.js

// Modules to control application life and create native browser window
const {app, BrowserWindow} = require('electron')
const path = require('path')
const fs = require('fs')
// 读取配置文件
const config = JSON.parse(fs.readFileSync('./resources/config.json', 'utf-8'))

function createWindow () {
  // Create the browser window.
  let webConfig = {
    width: config.width,
    height: config.height,
    webPreferences: {
      webSecurity: false,
    },
    // 无边框
    // frame: false,
    // 全屏
    // fullscreen: true
  }
  // if (config.preload) {
  //   console.log(config.preload)
  //   webConfig.webPreferences.preload = config.preload
  // }
  const mainWindow = new BrowserWindow(webConfig)

  // and load the index.html of the app.
  // mainWindow.loadFile('./resources/01.html')
  mainWindow.webContents.userAgent = 'Mozilla/5.0 (iPhone; CPU iPhone OS 13_5_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.1 Mobile/15E148 Safari/604.1'
  // mainWindow.webContents.openDevTools()
  mainWindow.loadURL(config.url)
  mainWindow.webContents.on("dom-ready", function() {
    mainWindow.webContents.executeJavaScript(`
    function loadScript(url, callback) {
      var script = document.createElement("script")
      script.type = "text/javascript";
      if (script.readyState) { //IE
          script.onreadystatechange = function () {
              if (script.readyState == "loaded" || script.readyState == "complete") {
                  script.onreadystatechange = null;
                  if (callback) callback();
              }
          };
      } else { //Others
          script.onload = function () {
              if (callback) callback();
          };
      }
      script.src = url;
      var head = document.head || document.getElementsByTagName('head')[0];
      head.appendChild(script);
    }
    loadScript('${config.preload}')
    `);
  });
  // Open the DevTools.
  
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.whenReady().then(() => {
  createWindow()
  
  app.on('activate', function () {
    // On macOS it's common to re-create a window in the app when the
    // dock icon is clicked and there are no other windows open.
    if (BrowserWindow.getAllWindows().length === 0) createWindow()
  })
})

app.on('certificate-error', (event, webContents, url, error, certificate, callback) => {
  //允许私有证书
  event.preventDefault()
  callback(true)
});

// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', function () {
  if (process.platform !== 'darwin') app.quit()
})

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.