生命周期

生命周期对比

vue2	vu3	备注
beforeCreate	-	vue3 setup就是围绕这一层进行部署
created	-	vue3 setup就是围绕这一层进行部署
beforeMount	beforeMount
mounted	mounted
beforeUpdate	beforeUpdate
updated	updated
beforeDestroy	beforeUnmount
destroyed	unmounted
-	errorCaptured	新特性
-	renderTracked	新特性
-	renderTriggered	新特性
-	activated	新特性
-	deactivated	新特性

语法

export default{
    beforeCreate(){},
    created(){},
    beforeMount(){},
    mounted(){},
    beforeUpdate(){},
    updated(){},
    beforeDestroy(){},
    destroyed(){}
    ...
}