Vue混入：全局混入

import Vue from "vue";
import App from "./App.vue";

Vue.config.productionTip = false;

Vue.mixin({
  created() {
    console.log("混入的created钩子");
  },
  methods: {
    hello() {
      console.log("混入的hello方法");
    }
  }
});

new Vue({
  render: h => h(App)
}).$mount("#app");imp