发布时间：2023-02-17 16:30
从Vue2到Vue3相关的声明周期变化 ，官网
| 执行阶段 | vue2 | vue3 |
|---|---|---|
| 组件创建前 | beforeCreate | setup() |
| 组件创建后 | created | setup() |
| 组件挂载前 | beforeMount | onBeforeMount |
| 组件挂载后 | mounted | onMounted |
| 组件更新前 | beforeUpdate | onBeforeUpdate |
| 组件更新后 | updated | onUpdated |
| 组件卸载前 | beforeDestroy | onBeforeUnmount |
| 组件卸载后 | destroyed | onUnmounted |
| 子孙组件异常激活 | errorCaptured | onErrorCaptured |
keep-alive组件的时候还会有一个钩子被触发：onActivatedonDeactivated