my wife need some imgs on http://www.tjftbc.com , so i have made this script,backup here.

download_tjftbc_imgs.js

var cheerio = require('cheerio');
var request = require('request');
var fs = require('fs');

var baseurl = 'http://www.tjftbc.com/product/';
var $,category = [];

request(baseurl,function(error,response,body){
	if (!error && response.statusCode == 200) {
		$ = cheerio.load(body);
		var cates = $('.productclass_dolphin>a');
		for (var i = 1; i < cates.length; i++) {
			// if(i>0)break;
			create_category({
				name:cates.eq(i).text(),
				url:baseurl+cates.eq(i).attr('href').substring(11)
			});
		};
	}
});


function start(cate){
	request(cate.url,function(error,response,body){
		var p = cheerio.load(body);
		var pagenow = p('li.pagesnow');
		save_img(p('#Gallery img'),cate.name);
		while(!pagenow.next().is('.pbutton')){
			start({
				name:cate.name,
				url:baseurl + pagenow.next().find('a').attr('href').substring(9)
			});
			pagenow = pagenow.next();
		}
	})
}

function save_img(imgs,name){
	for (var i = 0; i < imgs.length; i++) {
		var imgurl = baseurl + imgs.eq(i).attr('src').substring(14);
		var imgname = imgs.eq(i).attr('src').split("/")[5];
		request(imgurl).pipe(fs.createWriteStream('/tmp/xia/'+name+'/'+imgname))
	}
}


function create_category(cate){
	fs.mkdir('/tmp/xia/'+cate.name,function(){
		start(cate);
	})
}