反馈,原指在信息的传输过程中,输出端能量的一部分输送回同一电路的输入端,以影响输入信号的反应,这部份“递向传送”,叫做反馈。在信息的变换和传递工作中,反馈是一个重要的环节,只有把信息及时反馈过来,才能产生新的信息源,保持信息的连续性,才能较正制定决策与实现目标之间的偏差,检验原信息所发生作用的正确性。这样就可以对系统起着控制和调节功能的作用。信息反馈有两种:一种是正反馈,即通常所说的“报喜”,是加快向既定目标前进的步伐; Feedback, originally refers to the transmission of information, part of the output energy back to the same circuit input, in order to affect the response of the input signal, this part of the “delivery” is called feedback. Feedback is an important link in the transformation and transmission of information. Only when the information is fed back in time can new information sources be generated and the continuity of information can be corrected. Therefore, the deviation between making decision and achieving the goal can be corrected. The correctness of the original message. This will play a role in controlling and regulating the system. There are two kinds of feedback: one is positive feedback, which is commonly referred to as “good news”, is to accelerate the pace of progress toward the established goal;