成员的完整列表，这些成员属于 roboctrl::device::serial_imu_packet,包括所有继承而来的类成员

pitch (定义于 roboctrl::device::serial_imu_packet)	roboctrl::device::serial_imu_packet
pitch_v (定义于 roboctrl::device::serial_imu_packet)	roboctrl::device::serial_imu_packet
roll (定义于 roboctrl::device::serial_imu_packet)	roboctrl::device::serial_imu_packet
roll_v (定义于 roboctrl::device::serial_imu_packet)	roboctrl::device::serial_imu_packet
yaw (定义于 roboctrl::device::serial_imu_packet)	roboctrl::device::serial_imu_packet
yaw_v (定义于 roboctrl::device::serial_imu_packet)	roboctrl::device::serial_imu_packet