js小数四舍五入，保留两位小数

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，就酱~~