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1. For details about node. js static resource compression and caching, refer to: node. js creates a static resource server and uploads files to learn Express. the gzip compression of dynamic files has not been found for a long time, it's just that simple ......
Add the compression module to app. js:
Install it first; var compress = require ('compression'); app. use (compress (); dynamic files can also be compressed by gzip if OK;

2. Capture pictures of sisters:

// Dependent module var fs = require ('fs'); var request = require ("request"); var cheerio = require ("cheerio "); var mkdirp = require ('mkdirp '); // target url var url = 'HTTP: // me2-sex.lofter.com/tag/female photography? Page = '; // local storage directory var dir = '. /images '; // create the directory mkdirp (dir, function (err) {if (err) {console. log (err) ;}}); // send the request (url, function (error, response, body) {if (! Error & response. statusCode == 200) {var $ = cheerio. load (body); $ ('. img '). each (function () {var src = $ (this ). attr ('src'); console. log ('Download' + src); download (src, dir, Math. floor (Math. random () * 100000) + src. substr (-4, 4); console. log ('Download completed ') ;}}}); // download method var download = function (url, dir, filename) {request. head (url, function (err, res, body) {request (url ). pipe (fs. createWriteStream (dir + "/" + filename ));});};

3. decompress the file

var fs = require('fs'),  unzip = require('unzip'); //fs.createReadStream('./angular-swipe-master.zip').pipe(unzip.Extract({ path: './' }));var extract = unzip.Extract({ path: './' }); extract.on('error', function(err) {  console.log(err); }); extract.on('finish', function() {  console.log("unziped!!"); }); fs.createReadStream('./angular-swipe-master.zip').pipe(extract);

4. File compression

var fs = require("fs");var zip = require("node-native-zip");  var archive = new zip();  archive.addFiles([  { name: "app.j", path: "./app.js?1.1.9" }, { name: "package.json", path: "./package.json" }], function (err) { if (err) return console.log(err);   var buff = archive.toBuffer();   fs.writeFile("./test2.zip", buff, function () {  console.log("ziped"); });});

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