如何通过自定义公共事件实现进程间的通信？

subscriber: commonEventManager.CommonEventSubscriber | null = null;
subscribeInfo: commonEventManager.CommonEventSubscribeInfo = {
  events: ["myEvent"]//自己定义的事件名称
};

aboutToAppear(): void {
  // 创建订阅者回调
  commonEventManager.createSubscriber(this.subscribeInfo,
    (err: Base.BusinessError, data: commonEventManager.CommonEventSubscriber) => {
      if (err) {
        return;
      }
      this.subscriber = data;
      this.scribeSuccess = true
      if (this.subscriber !== null) {
        commonEventManager.subscribe(this.subscriber,
          (err: Base.BusinessError, data: commonEventManager.CommonEventData) => {
            if (err) {
              return;
            }
            console.info("==============success:" + JSON.stringify(data))
          })
      }
    })
}

build() {
  Column() {
    Button("发布事件").onClick(() => {
      let options: commonEventManager.CommonEventPublishData = {
        code: 1, // 公共事件的初始代码
        data: '我是携带的数据', // 公共事件的初始数据
        parameters:[{"name":"zhangsan"}]
      };
      commonEventManager.publish('myEvent', options, (err: Base.BusinessError) => {
        if (err) {
          console.info(`PublishCallBack err = ${JSON.stringify(err)}`);
        } else {
          console.info(`Publish success`);
        }
      });
    })
  }.width("100%")
  .justifyContent(FlexAlign.Center)
  .height("100%")
}

打印日志： ==============success:{"event":"myEvent","bundleName":"","code":1,"data":"我是携带的数据","parameters":{"0":{"name":"zhangsan"},"length":1,"moduleName":""}}
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