（四）vue开发 - 根据vue-router的meta动态设置html里<title>标签的内容

import Vue from 'vue'
import Router from 'vue-router'
import index '@/view/index'
import user from '@/view/user'
Vue.use(Router)
export default new Router({
routes: [
{
path: '/index',
name: 'index',
component: index,
meta:{
title:'首页'
}
},
{
path: '/user',
name: 'user',
component: user,
meta:{
title:'个人中心'
}
}
]
})

import Vue from 'vue'
import App from './App'
import router from './router'
router.beforeEach((to, from, next) => {
if (to.meta.title) {
document.title = to.meta.title
}
next()
})
new Vue({
el: '#app',
router,
template: '<App/>',
components: {App}
})