node 压缩解压缩

var fs=require("fs");
var zlib=require("zlib");
// fs.createReadStream("1.txt").pipe(zlib.createGzip()).pipe(fs.createWriteStream("1.txt.gz"));//压缩
fs.createReadStream("1.txt.gz").pipe(zlib.createGunzip()).pipe(fs.createWriteStream("1.txt"));//解压
console.log("ok");

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