vue.extend 写组件

1.用extend写全局组件

　　组件部分

<!--
 * @Descripttion: 
 * @Version: 
 * @Date: 2021-09-07 14:12:10
-->
<template>
    <transition name="component-fade" mode="out-in">
        <div class="alert_box" v-show="show">
          
          <div :class="{'alert_icon':true, 'iconfont':true,'iconjinggao':icon==0,'iconchenggong':icon==1,'iconcuowu1'
  :icon==2} ">
  
          </div>
          <div class="tit_alert" v-text="text"></div>
          
        </div>
      </transition>
</template>

<script>
export default {
    data () {
        return {
          
        }
    }
}
</script>

<style scoped lang="scss">
.flex_style{
   display: flex;
      flex-direction: row;
      align-items: center;
}
.alert_box{
  background: rgba(0,0,0,.7);
  border-radius: 10px;
  text-align: center;
  overflow: hidden;
  position: fixed;
  top: 50%;
   385px;
  left: 50%;
  transform: translate(-50%,-50%);
  padding: 40px 10px;
  box-sizing: border-box;
     color: #fff;
      transition: all .5s;
  .alert_icon{
    display: block;
    margin: 0 auto 30px;
    font-size: 80px;
  
  }
  .tit_alert{
    font-size: 28px;
    margin-bottom: 0;
  }
   
  
}
.component-fade-enter-active{
    transition: all .4s ease;
  }
  .component-fade-leave-active {
    transition: all .4s ease;
  }
  .component-fade-enter{
     185px;
    opacity: 0;
  }
  .component-fade-leave-to{
      185px;
    opacity: 0;
  } 
 

</style>

　　tips.js

import tips from '@/components/tip'
import vue from 'vue';

const tipsCompontent = vue.extend(tips);
function showTips(parma={
    text:'提示',time:2000,icon:0
}){
    var tips=new tipsCompontent({
        el:document.createElement('div'),
        data(){
            return {
                show:true,
                text:parma.text,
                icon:parma.icon
            }
        }
    });
    document.body.appendChild(tips.$el);
    let timeIndex=setTimeout(()=>{
        tips.show=false;
        clearTimeout(timeIndex)
    },parma.time)
}

export default showTips

　入口main.js

import showTips from './tips.js'

Vue.prototype.showTips=showTips;

　　使用

this.showTips({
  text:'提示',time:2000
});

列表：

列表组建

<template>
    <div>
        <ul>
            <li v-for='(item) in todoData' :key="item.id">
                {{ item.text }}
            </li>
        </ul>
    </div>
</template>

<script>
export default {
    props:['todoData']
}
</script>

　　list.js

import listCom from '@/components/list'
import vue from 'vue'

const listComp =vue.extend(listCom);
function listView(data){
   let list =new listComp({
        el:document.createElement('div'),
       propsData:{
        todoData:data
       }
   })
   document.body.appendChild(list.$el);

}

function listFn(){
    vue.prototype.$list=listView;
}
export default listFn

入口函数main.js

import listFn from './list.js'
Vue.use(listFn)

调用

this.$list([{text:1,id:1},{text:2,id:2}])