博客https://blog.csdn.net/gongsai20141004277/article/details/52949995#10759250中的代码

编译原理实验： 掌握THOMPSON 算法原理和方法 输入字母表∑上的一个正规表达式r。，输出接受L（r）的NFA 规则1： 对ε构造NFA Start ε 规则2： 对于∑中的每个符号a构造NFA Start a 规则3： 如果N（）和N（）是正规表达式s和t的NFA （a）、对于正规表达式s|t，可构造复合的NFA N（s|t）如下： N（s） ε ε Start ε N（t） ε （b）、对于正规表达式st，可构造复合的NFA N（st）如下： Start N（t） N（s） （c）、对于正规表达式s*，可构造复合的NFA N（s*）如下： ε start ε N（s） ε ε （d）、对于正规表达式（s），可使用N（s）本身作为它的NFA

这则表达式向确定有限自动机的转化，RE到NFA/DFA的转化是编译器词法分析的关键步骤，本资源用C++实现该转化的重要算法Thompson算法。

根据python简单模拟交通环境模拟交通环境，根据汤普森选样建模解决最优路线问题。道路条数以及道路随机情况可自行更改。非常简单。

Thompson的关于网格生成的经典文章

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