vue-insagent-pc/src/App.vue

<template>
  <div id="app">
    <router-view v-if="isRouterAlive" />
    <el-backtop :bottom="16" :right="20" :visibility-height="1100" class="backtop">
      <div><i class="el-icon-caret-top" style="color:#ee7000;"></i></div>
    </el-backtop>
  </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;
      });
    },
  },
};
</script>

<style>
.icon {
  width: 34px;
  height: 34px;
  vertical-align: -0.15em;
  fill: currentColor;
  overflow: hidden;
}

.backtop {
  position: fixed;
  background-color: #FFF;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  font-size: 20px;
  -webkit-box-shadow: 0 0 6px rgba(0, 0, 0, .12);
  box-shadow: 0 0 6px rgba(0, 0, 0, .12);
  cursor: pointer;
  z-index: 999;
}
</style>