vue3 组合式 api 中使用 eventChannel（getOpenerEventChannel）

<script setup>  
import { getCurrentInstance } from 'vue'  
import { onLoad } from '@dcloudio/uni-app'  

const _this = getCurrentInstance().appContext.config.globalProperties  

onLoad(options => {  
  console.log('page onLoad: ', options)  

  const eventChannel = _this.getOpenerEventChannel()  
  eventChannel.on('acceptDataFromOpenerPage', data => {  
    console.log('acceptDataFromOpenerPage: ', data)  
  })  
})  
</script>