使用Vue.observable()进行状态管理的实例代码详解

//store.js
import Vue from 'vue';

export let store =Vue.observable({count:0,name:'李四'});
export let mutations={
  setCount(count){
    store.count=count;
  },
  changeName(name){
    store.name=name;
  }
}

//Home.vue
 <template> 
    <div class="container"> 
      <home-header></home-header> 
      <button @click="setCount(count+1)">+1</button>
      <button @click="setCount(count-1)">-1</button>
       <div>store中count：{{count}}</div>
      <button @click="changeName(name1)">父页面修改name</button>
      <div>store中name：{{name}}</div>
      <router-link to="/detail" ><h5>跳转到详情页</h5>  </router-link>
    </div> 
  </template> 
  <script> 
    import HomeHeader from '../components/HomeHeader'  
    import {store,mutations} from '@/store'
    export default { 
      data () { 
        return { 
          name1:'主页的name'
        } 
      }, 
      components: { 
        HomeHeader 
      }, 
      computed:{
        count(){
          return store.count
        },
        name(){
          return store.name
        }
      },
      methods:{
        setCount:mutations.setCount,
        changeName:mutations.changeName  
      }
    } 
  </script>

//Detail.vue
<template> 
  <div class="detail"> 
    <detail-header></detail-header> 
    <button @click="changeName(name2)">子页面修改name</button>
    <p>store中name：{{name}}</p>
  </div> 
</template> 
<script> 
  import DetailHeader from '../components/DetailHeader' 
  import {store,mutations} from '@/store'
  export default { 
    components: { 
      DetailHeader 
    } ,
    data(){
      return {
        name2:'子页的name'
      }
    },
    computed:{
      name(){
        return store.name
      }
    },
    methods:{
      changeName:mutations.changeName
    }
  } 
</script>

//升级vue版本
npm update vue -S 或者 yarn add vue -S
npm update vue-template-compiler -D 或者 yarn add vue-template-compiler -D