铁电实验数据处理

[Wonder0225]

利用Python封装了一个类，提供电滞回线基本的数据处理功能：DataAnalysis.txt

[github-young]

Thank you. Please file a PR and merge the code into this repo. If you are interested in contributing more to this repo, I can invite you as a collaborator of this repo.

[Wonder0225]

I didn't clone the repository so I upload the code through issue. I would be happy if I can be a collaborator of this repo, then I can upload my ploting code after finishing the course this term.