router.beforeEach((to, from, next) => {
const title = to.meta && to.meta.title
if (title) {
document.title = title
}
next()
})
router.beforeEach((to, from, next) => {
const title = to.meta && to.meta.title
if (title) {
document.title = title
}
next()
})
本文标题：vue 改变路由动态改变title
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