code: func decodeNetworkByteOrder(orderBytes []byte) (n uint32) {
  	return uint32(orderBytes[0])<<24 |
  		uint32(orderBytes[1])<<16 |
  		uint32(orderBytes[2])<<8 |
  		uint32(orderBytes[3])
  }
docs: // 从 4 字节的网络字节序里解析出整数