如何使用`Promise.all`编写一个异步函数来从所有`.csv`文件导入数据？

const fs = require('fs');
const csv = require('csv-parser');

function readCsv(filePath) {
  return new Promise((resolve, reject) => {
    const results = [];
    fs.createReadStream(filePath)
      .pipe(csv())
      .on('data', (data) => results.push(data))
      .on('end', () => resolve(results))
      .on('error', (error) => reject(error));
  });
}

async function importData(filePaths) {
  try {
    const promises = filePaths.map(filePath => readCsv(filePath));
    const results = await Promise.all(promises);
    
    // 处理解析后的CSV数据
    // ...

    return results;
  } catch (error) {
    console.error(error);
    throw error;
  }
}

// 调用示例
const filePaths = ['file1.csv', 'file2.csv', 'file3.csv'];
importData(filePaths)
  .then(results => {
    console.log(results);
  })
  .catch(error => {
    console.error(error);
  });