这个原创项目用在一个分拣系统中。可以通过它学习如何提取机器有效特征码，并且使用高强度的加密算法加密。最后发布序列号。对于做软件发布加密解密的朋友应该非常有参考价值。仅供学习，请勿用于商业目的。-the original item used in a sorting system. It can learn how to extract effective Scan machines, and the use of high-strength encryption algorithm encryp

这是用Delphi编写的拓扑排序算法的实现过程，很经典。-It is written in Delphi topological sorting algorithm implementation process, it is classic.

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