这里主要是将store里面的index.js这个文件变得更加有条理性一点，使得整个代码看起来比较清晰
主要的变动在于count.vue,person.vue,index.js
count.vue
<template><div><h1>当前求和为：{{sum}}</h1><h3>当前求和放大10倍为:{{bigSum}}</h3><h3>我在{{school}} 学习{{subject}}</h3><h3 style="color:red">下方组件的总人数是：{{personList.length}}</h3><select v-model.number="n"><option value="1">1</option><option value="2">2</option><option value="3">3</option></select><button @click="increment(n)">+</button><button @click="decrement(n)">-</button><button @click="incrementOdd(n)">当前求和为奇数再加</button><button @click="incrementWait(n)">等一等再加</button></div>
</template><script>import {mapActions, mapGetters, mapMutations, mapState} from 'vuex'export default {name:'Count',data() {return {n:1, //用户选择的数字}},computed:{...mapState('countAbout',['sum','school','subject']),...mapState('personAbout',['personList']),...mapGetters('countAbout',['bigSum'])},methods: {//借助mapMutations生成对应的方法，方法中会调用commit去联系mutaions...mapMutations('countAbout',{increment:'JIA',decrement:'JIAN'}),// incrementOdd(){// this.$store.dispatch('jiaOdd',this.n)// },// incrementWait(){// this.$store.dispatch('jiaWait',this.n) // },//...mapActions('countAbout',{incrementOdd:'jiaOdd',incrementWait:'jiaWait'})},mounted(){const x =mapState({he:'sum',xuexiao:'school',xueke:'subject'})console.log(x)}}
</script><style>button{margin-left: 5px;}
</style>person.vue
<template><div><h1>人员列表</h1><h3 style="color:blue">上方组件的求和为{{sum}}</h3><input type="text" placeholder="请输入名字" v-model="name"><button @click="add">添加</button><ul><li v-for="p in personList" :key="p.id">{{p.name}}</li></ul></div>
</template><script>
import { nanoid } from 'nanoid'export default {name:'Person',data(){return{name:''}},computed:{personList(){return this.$store.state.personAbout.personList},sum(){return this.$store.state.countAbout.sum}},methods:{add(){const personObj={id:nanoid(),name:this.name}this.$store.commit('personAbout/ADD_PERSON',personObj)this.name=''}}
}
</script>index.js
//该文件用于创建VUex中最为核心的storeimport Vue from 'vue'//引入Vuex
import Vuex from 'vuex'
//应用vuex插件
Vue.use(Vuex)//求和相关配置
const countOptions ={namespaced:true,actions:{jiaOdd(context,value){console.log('actions中的jiaOdd被调用了')if(context.state.sum % 2){context.commit('JIA',value)} },jiaWait(context,value){console.log('actions中的jiaWait被调用了')setTimeout(() => {context.commit('JIA',value)}, 500);}},mutations:{JIA(state,value){console.log('mutations中的JIA被调用了')state.sum +=value},JIAN(state,value){console.log('mutations中的JIAN被调用勒')state.sum -=value},},state:{sum:0, //当前的和 school:'尚硅谷',subject:'前端',},getters:{bigSum(state){return state.sum*10}}
}//人员管理相关配置
const personOptions ={namespaced:true,actions:{},mutations:{ADD_PERSON(state,value){console.log('mutations中的ADD_PERSON被调用勒')state.personList.unshift(value)}},state:{personList:[{id:'001',name:'张三'}]},getters:{}
}//创建并暴露store
export default new Vuex.Store({modules:{countAbout:countOptions,personAbout:personOptions}
})
