谢谢！我在docs中找到了这个，https://electronjs.org/docs/api/app#apprequestsingleinstancelock：

const { app } = require('electron')
let myWindow = null

const gotTheLock = app.requestSingleInstanceLock()

if (!gotTheLock) {
  app.quit()
} else {
  app.on('second-instance', (event, commandLine, workingDirectory) => {
    // Someone tried to start a second instance, focus our window.
    if (myWindow) {
      if (myWindow.isMinimized()) myWindow.restore()
      myWindow.focus()
    }
  })

  // Create myWindow, load the rest of the application, etc.
  app.on('ready', () => {
  })
}

使用app.makeSingleInstance()，确保用户不会打开多个electron示例。一旦你分享了你的代码，我会做一个编辑来告诉你如何正确地实现它。

var shouldQuit = app.makeSingleInstance(function(commandLine, workingDirectory) {
  // Someone tried to run a second instance, we should focus our window.
  if (myWindow) {
    if (myWindow.isMinimized()) myWindow.restore();
    myWindow.focus();
  }
});