解决VUE3 keep-alive页面切换报错parentComponent.ctx.deactivate

        <router-view v-slot="{ Component }">
          <keep-alive >
            <component :is="Component" v-if="$route.meta.keepAlive" />
          </keep-alive>
          <component :is="Component"  v-if="!$route.meta.keepAlive" />
        </router-view>
        //keepAlive是在路由里边定义的meta字段 true/false

        <router-view v-slot="{ Component }">
          <keep-alive >
            <component :is="Component" :key="$route.name" v-if="$route.meta.keepAlive" />
          </keep-alive>
          <component :is="Component" :key="$route.name" v-if="!$route.meta.keepAlive" />
        </router-view>

//vuex  store.js
const state = {
	classes: "",
 	day: "",
}
const mutations = {
  updateClasses(state,payload) {
    state.classes=payload
  },
  updateDay(state,payload) {
    state.day=payload
  },
}
//vue  computed
 classes() {
  return this.$store.state.classes
 },
 day() {
   return this.$store.state.day
 },
 //vue  watch
classes(val) {
    this.updateClassChange()//ajax请求
},
day(val) {
    this.updateDayChange()//ajax请求
}
//公共组件
this.$store.commit('updateClasses', {this.classs})
this.$store.commit('updateDay', {this.day})

watch: {
  classes(val) {
    if(this.$route.name=="index") {
      this.updateClassChange()
    }
  },
  day(val) {
    if(this.$route.name=="index") {
      this.updateDayChange()
    }
  }
},

activated() {
 if(this.$route.name=="index"){
     this.init()
   }
 },

//vuex  store.js
const state = {
	classesObj:{
    index:"",
    addict:"",
    consume:"",
    mental:""
  },
  dayObj:{
    index:"",
    addict:"",
    consume:"",
    mental:""
  },
}
const mutations = {
 setClassesObj(state,payload){
    if(payload.index){
      state.classesObj.index=payload.index
    }
    if(payload.addict){
      state.classesObj.addict=payload.addict
    }
    if(payload.consume){
      state.classesObj.consume=payload.consume
    }
    if(payload.mental){
      state.classesObj.mental=payload.mental
    }
  },
  setDayObj(state,payload){
    if(payload.index){
      state.dayObj.index=payload.index
    }
    if(payload.addict){
      state.dayObj.addict=payload.addict
    }
    if(payload.consume){
      state.dayObj.consume=payload.consume
    }
    if(payload.mental){
      state.dayObj.mental=payload.mental
    }
  },
}
//vue  computed
classes() {
  return this.$store.state.classesObj[this.$route.name]
},
day() {
  return this.$store.state.dayObj[this.$route.name]
},
 //vue  watch
classes(val) {
    this.updateClassChange()//ajax请求
},
day(val) {
    this.updateDayChange()//ajax请求
}
//公共组件
this.$store.commit('setClassesObj', {[this.$route.name]:this.classs})
this.$store.commit('setDayObj', {[this.$route.name]:this.day})