node.js读取Excel数据（下载图片）的方法示例

const xlsx = require('xlsx');
const mkdirp = require('mkdirp');
const request = require('request');
const fs = require('fs');

const workbook = xlsx.readFile('data.xls');

const sheetNames = workbook.SheetNames; // 返回 ['sheet1', ...]
const worksheet = workbook.Sheets[sheetNames[0]];
const data = xlsx.utils.sheet_to_json(worksheet);

const dir = './images';

// 创建文件夹
mkdirp(dir);

data.forEach(item => {
 request.head(item.img, (err, res, body) => {
  request(item.img).pipe(fs.createWriteStream(dir + "/" + item.name+'.jpg'));
 });
})