python .sum()

xxx/src/utils 模块化，请求等等

xxx/src/utils/sum.js

function sum(){
    return 10+20
}
export default sum;

<template>
    <p>{{number}}</p>
</template>
<script>
import sum from "../utils/sum.js"
export default {
  computed:{
    number(){
      return sum();
}
}
}
</script>