文件压缩

const zlib = require('zlib');
const fs = require('fs');

//获取压缩的源文件和目标文件
let src;
let dst;
if (process.argv[2]) {
    src = process.argv[2];
} else {
    throw new Error('请指定源文件');
}

if (process.argv[3]) {
    dst = process.argv[3];
} else {
    throw new Error('请指定目标文件');
}


fs.createReadStream(src).pipe(zlib.createGzip()).pipe(fs.createWriteStream(dst));

console.log('压缩完成');

实现效果如下：

image.png

文件成功压缩

文件解压缩

//解压缩

//导入模块
const fs = require('fs');
const zlib = require('zlib');

//判断 存在参赛
if (!process.argv[2] && !process.argv[3]) {
    throw new Error('请指定参赛');
}

//管道操作
fs.createReadStream(process.argv[2]).pipe(zlib.createGunzip()).pipe(fs.createWriteStream(process.argv[3]));

console.log('解压成功');

文件解压成功