一、加載渲染過程
父beforeCreate->父created->父beforeMount->子beforeCreate->子created->子beforeMount->子mounted->父mounted
二、子組件更新過程
父beforeUpdate->子beforeUpdate->子updated->父updated
三、父組件更新過程
父beforeUpdate->父updated
四、銷毀過程
父beforeDestroy->子beforeDestroy->子destroyed->父destroyed