以上是全部依賴
下面是girljs
const request = require("request")
const cheerio = require("cheerio")
const fs = require("fs")
let i = 1
download(i)
function download(i){
request("http://www.win4000.com/meinv"+i+"_1.html",(err,res,body)=>{
if(err){
return
}
let $ = cheerio.load(body)
if(!$("#pic-meinv a img")[0]){
i++
setTimeout(() => {
console.log(i/180000+"%")
download(i)
}, 20);
return
}
let img_url = $("#pic-meinv a img")[0].attribs.url
//save代表保存路徑
var writeStream = fs.createWriteStream("./save/"+"image"+i+".png");
var readStream = request(img_url)
readStream.pipe(writeStream);
readStream.on('end', function() {
console.log('文件下載成功');
});
readStream.on('error', function() {
console.log("錯誤信息:" + err)
})
writeStream.on("finish", function() {
i++
setTimeout(() => {
console.log(i/180000+"%")
download(i)
}, 20);
console.log("文件寫入成功");
writeStream.end();
});
})
}
效果 
