vue3学习-生命周期函数

选项式API	组合式API
beforeCreate/created	setup
beforeMount	onbeforeMount
mounted	onMounted
beforeUpdate	onBeforeUpdate
updated	onUpdated
beforeUnmount	onBeforeUnmount
unmounted	onUnmounted

<script setup>
//生命周期的使用
//1.引入函数
import { onMounted } from 'vue';
//
onMounted(()=>{
  console.log('组件挂载完毕mounted执行了');
})
</script>

生命周期函数是可以执行多次的，多次执行时传入的回调会在时机成熟时依次执行

onMounted(()=>{
console.log('mount1')
})
onMounted(()=>{
console.log('mount2')
)}