计算字符串的CRC验证码的示例程序，大家可以参考参考。-CRC calculation string Verification Code sample procedure, we can refer to the reference.

使用C++编写的CRC32校验算法，使用了STL库，windows API和汇编等几种方法实现，并能比较它们之间执行的时间。-The use of C++ Prepared CRC32 checksum algorithm, using the STL library, windows API, and the compilation of several methods, such as to achieve, and compare their execution time.