中文说明：你需要有一个文本文件的输入和输出的两行中的系统，它可能是任何控制系统的数据。您必须指定此文本文件的路径并运行代码。它会给你你的系统，在连续和离散的方式转移功能
English Description：
You need to have a text file with the input and the output of a system in tow rows, it could be the data of any control system. You have to specify the path of this text file and run the code. It will give you the transfer funtion of your system, in the continuos and the discrete way