// router的 path: "/user/:uid"
<template>
  <div>user</div>
  <p>uid: {{ uid }}</p>
</template>
 
<script lang="ts">
import { defineComponent } from "vue";
import { useRouter } from "vue-router";
 
export default defineComponent({
  name: "User",
  setup() {
    const router = useRouter();
    const uid = router.currentRoute.value.params.uid;
    return {
      // 返回的数据
      uid,
    };
  },
});
</script>