// 模板中：

<div class="home">
<keep-alive>

            <router-view v-if="$route.meta.keepAlive"></router-view>

        </keep-alive>

            <router-view v-if="!$route.meta.keepAlive"></router-view>

    </div>

// 路由配置中：

[

        {

          path: 'main',

          name: 'main',

          component: main,
 meta: { keepAlive: false } // false为不缓存

        },

        {

          path: 'orderSearch',

          name: 'orderSearch',

          component: orderSearch,

          meta: { keepAlive: false } // false为不缓存

        }

]

watch: {

    '$route' (to, from) {

        if( from.path == "/home"){

        //...

        }

        }

}