1. reactive中新加字段也会触发模板更新
<script setup>
import { reactive } from 'vue';
import { ref } from 'vue'
const count = ref(0)
const dockinfo=reactive({})
function increment() {
dockinfo["tt"]||={}
if(dockinfo["tt"].count!=undefined)
{
dockinfo["tt"].count++
}
else{
dockinfo["tt"].count=0
}
}
</script>
<template>
<button @click="increment">
{{ "test_"+dockinfo["tt"]?.count}}
</button>
</template>