<template>
  <div id="app">
    <router-view />
  </div>
</template>

<script>
export default {
  name: "App",
  data() {
    return {

    };
  },
  methods: {

  },
  created() {
    var store = require('store');

    //在页面加载时读取sessionStorage里的状态信息
    if (sessionStorage.getItem("storedata")) {
      this.$store.replaceState(Object.assign({}, this.$store.state, JSON.parse(sessionStorage.getItem("storedata"))))
    }     //在页面刷新时将vuex里的信息保存到sessionStorage里
    window.addEventListener("beforeunload", () => {
      sessionStorage.setItem("storedata", JSON.stringify(this.$store.state))
    });
    // 兼容iphone手机
    window.addEventListener("pagehide", () => {
      sessionStorage.setItem("storedata", JSON.stringify(this.$store.state))

    });
  },
};
</script>
<style>
* {
  margin: 0;
  padding: 0;
}
</style>