const { Device } = require('./models');

(async () => {
  try {
    const devices = await Device.findAll({
      limit: 5,
      attributes: ['id', 'name', 'type']
    });
    
    console.log('前5个设备:');
    devices.forEach(d => {
      console.log(`ID: ${d.id}, 名称: ${d.name}, 类型: ${d.type}`);
    });
    
    const totalCount = await Device.count();
    console.log(`\n设备总数: ${totalCount}`);
    
  } catch (error) {
    console.error('检查设备时出错:', error);
  } finally {
    process.exit();
  }
})();