设定一个信息码串，产生常见的编码如单极性非归零、双极性非归零、单极性归零、双极性归零、AMI、HDB3码的时域波形；-Set up an information code string to produce a common code such as the unipolar NRZ, bipolar, non-zero, zero unipolar, bipolar zero, AMI, HDB3 code of the time-domain waveform