Vue和Excel的冠军组合：如何实现数据的动态加总和导出

<template>
  <div>
    <table>
      <thead>
        <tr>
          <th>姓名</th>
          <th>年龄</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="person in people" :key="person.id">
          <td>{{ person.name }}</td>
          <td>{{ person.age }}</td>
        </tr>
      </tbody>
    </table>
    <div>
      总年龄：{{ totalAge }}
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      people: [
        { id: 1, name: '张三', age: 25 },
        { id: 2, name: '李四', age: 30 },
        { id: 3, name: '王五', age: 28 },
      ]
    };
  },
  computed: {
    totalAge() {
      let total = 0;
      for (const person of this.people) {
        total += person.age;
      }
      return total;
    }
  }
};
</script>

npm install xlsx file-saver --save

<template>
  <div>
    <button @click="exportData">导出数据</button>
  </div>
</template>

<script>
import XLSX from 'xlsx';
import { saveAs } from 'file-saver';

export default {
  data() {
    return {
      people: [
        { name: '张三', age: 25 },
        { name: '李四', age: 30 },
        { name: '王五', age: 28 },
      ]
    };
  },
  methods: {
    exportData() {
      const worksheet = XLSX.utils.json_to_sheet(this.people);
      const workbook = XLSX.utils.book_new();
      XLSX.utils.book_append_sheet(workbook, worksheet, '人员信息');
      const excelBuffer = XLSX.write(workbook, { bookType: 'xlsx', type: 'array' });
      const blob = new Blob([excelBuffer], { type: 'application/octet-stream' });
      saveAs(blob, '人员信息.xlsx');
    }
  }
};
</script>