模拟CRC循环冗余校验的C语言源程序，不是很完善-simulation Cyclic Redundancy Check the C language source code is not perfect

Consider an 8-input and 8-output problem, where the output should be equal to the input for any of the 8 combinations of seven 0s and one 1.-Consider an 8-input and 8-output problem, where the output should be equal to the input for any of the 8 comb

fft谐波分析的实例，并求出THD即谐波畸变率 -Examples fft harmonic analysis, and find THD