<template>
    <div id="app">
        <router-view v-if="isRouterAlive"></router-view>
    </div>
</template>
<style>
    @import "./assets/css/main.css";
    @import "./assets/css/color-dark.css";     /*深色主题*/
    /*@import "./assets/css/theme-green/color-green.css";   浅绿色主题*/
</style>
<script>
    export default {
        name: 'App',
        provide () {    //父组件中通过provide来提供变量，在子组件中通过inject来注入变量。
            return {
                reload: this.reload
            }
        },
        data() {
            return{
                isRouterAlive: true                    //控制视图是否显示的变量
            }
        },
        methods: {
            reload () {
                this.isRouterAlive = false;            //先关闭，
                this.$nextTick(function () {
                    this.isRouterAlive = true;         //再打开
                })
            }
        },
    }

</script>