//首先创建一个mack.vue
<template>
 <div class="mack" v-if="isShow">
  <div class="mackWeb" :style="text.mackStyle">
   <div class="title font_b" v-if="text.title" :style="text.titleStyle">{{text.title.trim()}}</div>
   <div class="mesg font_s" v-if="text.mesg" :style="text.mesgStyle">{{text.mesg.trim()}}</div>
   <div v-html="text.cntMsg"></div>
   <div class="footb font_s">
    <div
     class="foot_l borderlf borderTop"
     @click="cancel"
     v-if="text.cancel"
     :style="text.cancelValStyle"
    >{{text.btn.cancelVal}}</div>
    <div
     class="foot_r borderTop"
     @click="confirm"
     v-if="text.confirm"
     :style="text.confirmValStyle"
    >{{text.btn.confirmVal}}</div>
   </div>
  </div>
 </div>
</template>

//写js
<script>
 export default {
  data() {
   return {
    isShow: true,
    text: {
     title: "",
     mesg: "",
     cnTmesg: "",
     cancel: true,
     confirm: true,
     mackStyle: null,
  titleStyle: null,
  mesgStyle:null,
     cancelValStyle: null,
     confirmValStyle: null,
     btn: {
      confirmVal: "确定",
      cancelVal: "取消"
     }
    }
   };
  },
  methods: {
   cancel() {
    this.isShow = false;
   },
   confirm() {
    this.isShow = false;
   }
  }
};
</script>

//css
<style scoped lang='less'>
 .mack {
 position: fixed;
 width: 100%;
 height: 100%;
 overflow: hidden;
 top: 0;
 left: 0;
 background: rgba(21, 21, 21, 0.7);
 .font_b {
  font-size: 14/50rem;
  color: #231a2f;
 }
 .font_s {
  font-size: 12/50rem;
  color: #655a72;
 }
 .borderTop {
  border-top: 1/50rem solid #e4e4e4;
 }
 .mackWeb {
  background: #ffffff;
  width: 300/50rem;
  min-width: 300/50rem;
  margin: auto;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  .title {
   text-align: center;
   padding: 15/50rem 15/50rem 0 15/50rem;
  }
  .mesg {
   padding: 15/50rem;
   text-align: center;
  }
  .footb {
   display: inline-table;
   width: 100%;
   .borderlf {
    border-right: 1/50rem solid #e4e4e4;
   }
   div {
    display: table-cell;
    box-sizing: border-box;
    text-align: center;
    padding: 10/50rem 0;
   }
  }
 }
}
</style>

import Vue from 'vue';
import confirm from './mack';
let confirmConstructor = Vue.extend(confirm);
let theConfirm = function (text) {
  return new Promise((res, rej) => { //promise封装，ok执行resolve，no执行rejectlet
   let confirmDom = new confirmConstructor({  
    el: document.createElement('div')
   })
   document.body.appendChild(confirmDom.$el); //new一个对象，然后插入body里面
   confirmDom.text = Object.assing( confirmDom.text,text);  //为了使confirm的扩展性更强，这个采用对象的方式传入，所有的字段都可以根据需求自定义
   confirmDom.ok = function () {
    res()
    confirmDom.isShow = false
   }
   confirmDom.close = function () {
    rej()
    confirmDom.isShow = false
   }
  })
 }
 export default theConfirm; 
  //暴露出去，别忘记挂载到vue的原型上 
  //  => 在main.js里面先引入 import theConfirm from './components/confirm/confirm.js'
  //  => 再挂载 Vue.prototype.$confirm = theConfirm;
  //在需要的地方直接用以下方法调用即可：
  //  this.$confirm({
  //   type:'提示',
  //   msg:'是否删除这条信息？',
  //   btn:{
  //     ok:'yes',
  //     no:'no'
  //   }
  // }).then(() => {
  //   console.log('ok')
  // })
  // .catch(() => {
  //   console.log('no')
  // })

import macksjs from './assets/mackjs'
Vue.prototype.$confirm= macksjs ;

<button @click="deleteaas">我是弹出框</button>
 methods:{
  deleteaas() {
   this.$confirm({
    title: "addd",
    mesg: "您确定不再关注该客户吗？",
    cntMsg: '<div class="helAA">你好</div>',
    cancelValStyle:{color:'red'},
    btn: {
     confirmVal: "确a定",
     cancelVal: "取a消"
    }
   })
    .then(() => {
     console.log("yes");
     //点击确定之后的处理
    })
    .catch(() => {
     console.log("no");
    });
  }
 }