其实网上这方面的代码已经不少了,但是大多都如出一辙,主要是给出的代码不但不好理解(主要是为了处理大文件,支持分块,这样就会屑弱初学者对算法的理解),该源代码在引入必要头文件后可以在VC6.0下顺利通过编译-fact that the Internet has been a lot of code, but most of all the same, given the code is not only poor understanding (mainly to handle large file

一般网上的资料都是DES没有分块的代码，这样不利于初学者理解掌握，这个代码就很好的将整体代码按照模块进行分解和说明，可以编译成功。-General information on the Internet is no DES block of code, and this is not conducive for beginners to understand and grasp, the code will be a very good overall decomposition module