说明：  一篇关于CRC循环冗余校验的科普文献 .内容是循环冗余校验CRC的算法分析和程序实现.解释了CRC的原理--采用多显示编码方法.并对其算法进行了分析.
(A CRC cyclic redundancy check on the popular science literature. Is Cyclic Redundancy Check CRC algorithm analysis and program. Explained the CRC principle- the use of multi-display encoding method. And its algorithm are analyzed.)