Life cycle hooks in routing - activated and deactivated

1. Two life cycle hooks , It is the unique life cycle hook of routing , Used to capture the activation and deactivation states of routing components
2. activated： Triggered when the routing component is activated
3. deactivated： Triggered when the routing component is deactivated

   activated () {
         
   	....
   },
   deactivated () {
         
   	...
   }