vue3界面使用router及使用watch监听router的改变

this.$router.push('/')

import { useRouter } from 'vue-router'
const router = useRouter()
router.push({ path: "/" });

watch: {
    $route: {
      handler: function (route) {
        const query = route.query;
        
      },
      immediate: true,
    },
  },

import { useRouter } from 'vue-router'
const router = useRouter()
watch(() => 
    router.currentRoute.value.path,
    (toPath) => {
      //要执行的方法
      const query = router.currentRoute.value.query;
      
    },{immediate: true,deep: true})

   let router = useRouter()
   // 监听当前路由变化
    watch(
      () => router.currentRoute.value,
      () => {
           console.log("路由变化了")
      }
    );