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

const keyPath = 'HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Cryptography';

child_process.exec(`REG QUERY ${keyPath} /v MachineGuid`,function(error,stdout,stderr){
    console.log('stderr:'+stderr);
      if(error != null){
        console.log('exec error:'+error);
        return
      }
      fs.writeFile('./MachineGuid.txt', stdout.slice(83,119), (error) => {
        if(error){
            console.log(`创建失败：${error}`);
        }
        console.log(`创建成功！`);
      });
  });