keep-alive 使用

<keep-alive exclude="Detail"> <router-view/> </keep-alive> activated () { if (this.lastCity !== this.city) { this.lastCity = this.city this.getHomeInfo() } }

加了<keep-alive> 后防止数据重复请求: created() mouted() 就只能加载一次,但是 activated()  可以重复、重新加载