vue3兄弟组件传值

main.ts

import mitt from 'mitt'

const vueEvent = mitt()

 

app.config.globalProperties.vueEvent = vueEvent

 

 

 

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import {getCurrentInstance} from 'vue'  const vueEvent = getCurrentInstance()?.appContext.config.globalProperties.vueEvent //发送 vueEvent.emit('handleCurrentNo', 1) //接收    onMounted(() => {       vueEvent.on('handleCurrentNo', (val: number) => {         state.currentNo = val       })     })     onUnmounted(() => {       vueEvent.off('handleCurrentNo')     })