<template>
 <div class="popup-wrapper" v-show="visible" @click="hide">
 <div class="popup-text">{{text}}</div>
 </div>
</template>

export default {
 name: 'popup',
 props: {
 text: { //文字內容
 type: String,
 default: ''
 },
 time: { //顯示的時長
 type: Number,
 default: 3e3
 },
 },
 data(){
 return {
 visible: false
 }
 },
 methods: {
 open() {
 this.visible = true
 clearTimeout(this.timeout);
 this.$emit('show')
 if(this.time > 0){
 this.timeout = setTimeout(() => {
 this.hide()
 }, this.time)
 }
 },
 hide() {
 this.visible = false
 this.$emit('hide')
 clearTimeout(this.timeout);
 }
 }
}

<template>
 <popup ref="popup" text="彈窗內容" :time="1e3"></popup>
</template>
<script>
import Popup from '@/components/popup'
 ...
 this.$refs.popup.open()
 ...
</script>

// plugins/popupVm.js
import Popup from '@/components/popup'
let $vm
export const factory = (Vue)=> {
 if (!$vm) {
 let Popup = Vue.extend(PopupComponent)
 $vm = new Popup({
 el: document.createElement('div')
 })
 document.body.appendChild($vm.$el)
 }
 return $vm
}

// plugins/util.js
export const setProps = ($vm, options) => {
 const defaults = {}
 Object.keys($vm.$options.props).forEach(k => {
 defaults[k] = $vm.$options.props[k].default
 })
 const _options = _.assign({}, defaults, options)
 for (let i in _options) {
 $vm.$props[i] = _options[i]
 }
}

// plugins/popupPlugin.js
import { factory } from './popupVm'
import { setProps } from './util'

export default {
 install(Vue) {
 let $vm = factory(Vue);

 const popup = {
 open(options) {
 setProps($vm, options)
 //監聽事件
 typeof options.onShow === 'function' && $vm.$once('show', options.onShow);
 typeof options.onHide === 'function' && $vm.$once('hide', options.onHide);
 $vm.open();
 },
 hide() {
 $vm.hide()
 }，
 //只配置文字
 text(text) {
 this.open({ text })
 }
 }
 
 Vue.prototype.$popup = popup
 }
}

//main.js
import Vue from 'vue'
import PopupPlugin from '@/plugins/popupPlugin'

Vue.use(PopupPlugin)
在vue框架內調用就非常方便了

<script>
 ...
 this.$popup.text('彈窗消息')
 ...
</script>