const props = defineProps({})
const emit = defineEmits([])
defineExpose({})

<template>
	{{ name }}
</template>

<script setup>
import { ref } from 'vue'

const name = ref("Nicholas.")
const sayName = ()=>{
    console.log("my name is "+name.value)
}

defineExpose({
	name,
	sayName
});
</script>

<template>
	<Child ref="child"></Child>
</template>

<script setup>
import { ref, onMounted } from 'vue'
const child = ref(null)
onMounted(()=>{
    console.log(child.value.name)	// "Nicholas"
    child.value.sayName()			// "my name is Nicholas"
})
</script>

//要使用這個(gè)語(yǔ)法，需要將 setup attribute 添加到 <script> 代碼塊上：
<script setup>
console.log('hello script setup')
//里面的代碼會(huì)被編譯成組件 setup() 函數(shù)的內(nèi)容。這意味著與普通的 <script> 只在組件被首次引入的時(shí)候執(zhí)行一次不同，<script setup> 中的代碼會(huì)在每次組件實(shí)例被創(chuàng)建的時(shí)候執(zhí)行。
</script>

<script setup>
import { ref } from 'vue'

const a = 1
const b = ref(2)

defineExpose({
  a,
  b
})
//當(dāng)父組件通過(guò)模板 ref 的方式獲取到當(dāng)前組件的實(shí)例，獲取到的實(shí)例會(huì)像這樣 { a: number, b: number } (ref 會(huì)和在普通實(shí)例中一樣被自動(dòng)解包)

</script>

<Table ref="eleTable" @handle="handleFun"></Table>
import {  ref  } from 'vue'

setup() { 
   //ref方法
    const eleTable = ref()  //eleTable是頁(yè)面ref后面對(duì)應(yīng)的名字
    const clickSon = () => {
      eleTable.value.changeShowText() //調(diào)用子組件的方法
      let arr = eleTable.value.tableData //獲取子組件 setup 里面定義的變量
    }
}

<FastreplySettingTable
              ref="FastreplySettingTableRef"
              v-if="sysStore.msgList"
              :groupType="Math.abs(state.currentTab - 1)"
              :currentTab="state.currentTab"
            ></FastreplySettingTable>


<script>
   const FastreplySettingTableRef = ref();
   
   //該方法是一個(gè)點(diǎn)擊事件
   function sendEvent(action) {
     if (FastreplySettingTableRef) {
     //拿到FastreplySettingTableRef組件里的dispatchEvent方法 并且穿一些參數(shù)
    FastreplySettingTableRef.value.dispatchEvent({ action, groupType: Math.abs(state.currentTab - 1) })
  }
}
</script>

import {
  getCurrentInstance,
  onMounted,
  reactive,
  onBeforeUnmount,
  defineProps,
  defineEmits,
  computed,
  onBeforeMount,
  onUnmounted,
  watch,
  ref,
  //這里必須引入
  defineExpose
} from "vue";
// 希望被父組件調(diào)用到的方法
//這個(gè)方法必須寫(xiě)在defineExpose 上面才會(huì)生效
const dispatchEvent = ({ action, groupType }) => {
  switch (action) {
    case 'tabClick': {
      state.searchKeyword = '',
        state.activeGroup = 'all'

    }; break;
    case 'addfastMsg': {
      //上報(bào)
      openMask('addfastMsg');
      // state.DialogTitle = state.groupType ? "快捷消息管理-添加團(tuán)隊(duì)內(nèi)容" : "快捷消息管理-添加個(gè)人內(nèi)容"
      // spiderReport.paq(props.groupType ? "快捷消息管理-添加團(tuán)隊(duì)內(nèi)容" : "快捷消息管理-添加個(gè)人內(nèi)容");
    }; break;
    default: {
      // state.[action](groupType);
    }
  }
}
defineExpose({
  dispatchEvent
})