奇偶校验码作为一种检错码虽然简单,但是漏检率太高。在计算机网络和数据通信中用E得最广泛的检错码,是一种漏检率低得多也便于实现的循环冗余码CRC (Cyclic Redundancy .Code),CRC码又称为多项式码。-Parity error detection code as a simple, but the missing rate is too high. In computer networking and data communications using the most widely used E error detection code, is a much lower but also easy to implement missed the cyclic redundancy code CRC (Cyclic Redundancy. Code), CRC code is also known as polynomial code.