给我写一段vue2的excel导入代码

好的，以下是一个简单的Vue 2 Excel导入示例，使用xlsx库实现：

<template>
  <div>
    <input type="file" @change="handleFileUpload" />
    <table>
      <thead>
        <tr>
          <th v-for="(header, index) in headers" :key="index">{{ header }}</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="(row, index) in rows" :key="index">
          <td v-for="(cell, index) in row" :key="index">{{ cell }}</td>
        </tr>
      </tbody>
    </table>
  </div>
</template>

<script>
import XLSX from 'xlsx';

export default {
  data() {
    return {
      headers: [],
      rows: [],
    };
  },
  methods: {
    handleFileUpload(event) {
      const file = event.target.files[0];
      const reader = new FileReader();
      reader.onload = (e) => {
        const data = e.target.result;
        const workbook = XLSX.read(data, { type: 'binary' });
        const sheetName = workbook.SheetNames[0];
        const worksheet = workbook.Sheets[sheetName];
        const headers = [];
        const rows = [];
        for (const cell in worksheet) {
          const cellAddress = XLSX.utils.decode_cell(cell);
          const rowIndex = cellAddress.r;
          const columnIndex = cellAddress.c;
          const cellValue = worksheet[cell].v;
          if (rowIndex === 0) {
            headers[columnIndex] = cellValue;
          } else {
            rows[rowIndex - 1] = rows[rowIndex - 1] || [];
            rows[rowIndex - 1][columnIndex] = cellValue;
          }
        }
        this.headers = headers;
        this.rows = rows;
      };
      reader.readAsBinaryString(file);
    },
  },
};
</script>

这段代码包括一个包含一个文件输入框和一个表格的Vue组件。当用户选择Excel文件并上传后，该组件会读取Excel文件的内容并将其显示在表格中。