js小數四舍五入，保留兩位小數

直接用用number.toFixed(2)即可

 

<template>
  <section class="p-10">
    <h1> {{ number }} </h1>
  </section>
</template>
<script> export default { data() { return { number: 3.1415926 }; }, created() { this.number = this.number.toFixed(2); } } </script>

<style lang="scss">
</style>

 

 

嗯，就醬~~