32位CRC循环冗余源代码 符合ANSI X3.66标准，运用于CCITT s X.25协议-32 Cyclic Redundancy source code conforms to the ANSI X3.66 standard, used CCITT s X.25

好不容易淘来的东西，专门讲用ANSI C语言来实现面向对象编程的思想编程，内容详细，很系统的。-hard to Amoy things, specialized speakers use ANSI C language to achieve OOP programming ideas, detailed and very systematic