Vue_Demo/20_脚手架/vue3_test/12.src_自定义hook/App.vue

<template>
  <button @click="isShowDemo=!isShowDemo">点击展示隐藏</button>
  <Demo v-if="isShowDemo"/>
</template>

<script>
import {ref} from "vue";
import Demo from "@/components/demo.vue";

export default {
  name: 'App',
  components: {Demo},
  setup() {
    let isShowDemo = ref(true)

    return {
      isShowDemo,
    }
  }

}
</script>