本文实例讲述了Node.js实现批量下载图片简单操作。分享给大家供大家参考，具体如下：使用Node.js批量下载图片首先要获取到图片链接：
const img = [

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400506629423.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400540139692.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400540118251.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400540069242.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400681111127.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400703641344.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400854321042.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400847773096.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400859178000.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400865596453.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400902911909.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400953029599.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400989455804.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401005976517.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400968714979.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401035049758.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401049432628.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401077574176.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401130741871.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401189588504.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401178924270.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401236159469.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401233410806.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401271226281.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401296600908.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401331496769.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401294723014.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401355737956.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401375565373.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401430489282.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401429130694.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401443905011.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401494231215.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401470554382.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401544523253.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401585803008.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401632787055.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401681076773.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401666198563.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401687089797.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401796465344.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401847533545.jpg"
];


const img = [

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400506629423.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400540139692.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400540118251.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400540069242.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400681111127.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400703641344.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400854321042.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400847773096.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400859178000.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400865596453.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400902911909.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400953029599.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400989455804.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401005976517.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218400968714979.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401035049758.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401049432628.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401077574176.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401130741871.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401189588504.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401178924270.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401236159469.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401233410806.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401271226281.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401296600908.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401331496769.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401294723014.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401355737956.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401375565373.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401430489282.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401429130694.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401443905011.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401494231215.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401470554382.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401544523253.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401585803008.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401632787055.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401681076773.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401666198563.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401687089797.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401796465344.jpg",

"http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2021/08/52218401847533545.jpg"
];

批量下载图片：
var fs = require('fs');
var request = require("request");
img.forEach(src => {

var writeStream = fs.createWriteStream(src.split('/2021/08/')[1]);

var readStream = request(src)

readStream.pipe(writeStream);

readStream.on('end', function() {

console.log('文件下载成功');

});

readStream.on('error', function() {

console.log(1);

// console.log("错误信息:" + err)

})

writeStream.on("finish", function() {

console.log("文件写入成功");

writeStream.end();

});
});


var fs = require('fs');
var request = require("request");
img.forEach(src => {

var writeStream = fs.createWriteStream(src.split('/2021/08/')[1]);

var readStream = request(src)

readStream.pipe(writeStream);

readStream.on('end', function() {

console.log('文件下载成功');

});

readStream.on('error', function() {

console.log(1);

// console.log("错误信息:" + err)

})

writeStream.on("finish", function() {

console.log("文件写入成功");

writeStream.end();

});
});

希望本文所述对大家node.js程序设计有所帮助。