父组件
setup () { const data = reactive({ deviceTypesTotal: {}})provide('deviceTypesTotal', data.deviceTypesTotal)
子组件
import { defineComponent, reactive, toRefs, ref, onMounted, inject , watch } from 'vue'const deviceTypesTotal = inject('deviceTypesTotal')watch(deviceTypesTotal, (newValue) => { console.log(newValue) data.deviceTypesTotal = newValue.deviceTypesTotal},{deep:true})