＃全局安装nw-gyp

npm install -g nw-gyp

＃设置目标NW.js版本

set npm_config_target=0.31.4

＃设置构建架构，ia32或x64，win10, osx为x64操作系统

set npm_config_arch=x64

set npm_config_runtime=node-webkit

set npm_config_build_from_source=true

set npm_config_node_gyp=C:\Users\NALA\AppData\Roaming\npm\node_modules\nw-gyp\bin\nw-gyp.js

#win10下还要设置python路径：

set PYTHON=C:\Users\NALA\.windows-build-tools\python27\python.exe

最后 npm install —msvs_version=2015

安装编译不成功，就多试几次，删除package-lock.json

const escpos = nw.require('escpos');

const device  = new escpos.USB();

const options = { encoding: 'GB18030'};

let printerList = escpos.USB.findPrinter();

const printer = new escpos.Printer(device, options);

console.log(printerList);

device.open(function(){

  printer

  .font('a')

  .align('ct')

  .style('bu')

  .size(1, 1)

  .text('The quick brown fox jumps over the lazy dog')

  .text('敏捷的棕色狐狸跳过懒狗')

  .barcode('1234567', 'EAN8')

  .qrimage('https://github.com/song940/node-escpos', function(err){

    this.cut();

    this.close();

  });

});