CRC在线计算器
On-line CRC calculation and free library https://www.lammertbies.nl/comm/info/crc-calculation.html
文章来自：http://www.cnblogs.com/wujing-hubei/p/5935697.html
On-line CRC calculation and free library https://www.lammertbies.nl/comm/info/crc-calculation.html