vue项目使用Bus进行组件通信

import Vue from ‘vue‘
export default new Vue()

const Bus = new Vue()

new Vue({
  el: ‘#app‘,
  router,
  axios,
  store,
  components: { App },
  data() {
    return {
      Bus
    }
  },
  template: ‘<App/>‘
})

import Bus from "../../bus/bus.js";

Bus.$emit("year", year);

Bus.$on("year", (e) => {
    console.log(e);
　　...
});