Pad_New/src/App.vue

<template>
  <div id="app">
    <!-- <img src="./assets/logo.png"> -->
    <!-- <div style="height: calc(100% + 1px)"><router-view v-if="isRouterAlive" /></div> -->
    <router-view v-if="isRouterAlive" />
  </div>
</template>

<script>
export default {
  name: "App",
  provide() {
    return {
      reload: this.reload
    };
  },
  data() {
    return {
      isRouterAlive: true
    };
  },
  methods: {
    reload() {
      this.isRouterAlive = false;
      this.$nextTick(function() {
        this.isRouterAlive = true;
      });
    }
  },
  watch: {
    $route: function(to, from) {
      document.body.scrollTop = 0;
      document.documentElement.scrollTop = 0;
    }
  },
  created() {}
};
</script>
<style lang="scss" scoped>
#app {
  height: 100%;
  overflow-y: auto;
  border: 1px solid gainsboro;
}
</style>