js 生成订单号

function generateOrderNumber() {
  const date = new Date();
  const year = date.getFullYear();
  const month = String(date.getMonth() + 1).padStart(2, '0');
  const day = String(date.getDate()).padStart(2, '0');
  const hours = String(date.getHours()).padStart(2, '0');
  const minutes = String(date.getMinutes()).padStart(2, '0');
  const seconds = String(date.getSeconds()).padStart(2, '0');
  const randomNum = Math.floor(Math.random() * 1000);

  return `${year}${month}${day}${hours}${minutes}${seconds}${randomNum}`;
}

console.log(generateOrderNumber());