<keep-alive>
 <router-view></router-view>
</keep-alive>

<!-- 這里是需要keepalive的 -->
<keep-alive>
 <router-view v-if="$route.meta.keepAlive"></router-view>
</keep-alive>
<!-- 這里不會被keepalive -->
<router-view v-if="!$route.meta.keepAlive"></router-view>

{
 path: '',
 name: '',
 component: ,
 meta: {keepAlive: true} // 這個是需要keepalive的
},
{
 path: '',
 name: '',
 component: ,
 meta: {keepAlive: false} // 這是不會被keepalive的
}

activated: function () {
 this.data = '';
}