4 - 可写的计算属性

[slowpack]

题目的意思应该是:plusOne 始终比count大1,plusOne可以改,如果改成100,那么count应该是99

<script setup lang="ts">
import { ref, computed } from "vue"

const count = ref(1)
const plusOne = computed({
  get: () => count.value+1,
  set: (val) =>{
    count.value = val-1
    return val
  }
})

plusOne.value++
</script>