Description: extract the password for the Yuan teacher's full name Pinyin (all lowercase)
Related Links:
Project structure: https://www.cnblogs.com/formyfish/p/10828672.html
needs analysis: https://www.cnblogs.com/formyfish/p/10813781.html
UML Design: HTTPS: //www.cnblogs .com / formyfish / p / 10814807.html
Project creation, configuration, interface design and implementation (including the core source code): https://www.cnblogs.com/formyfish/p/10814819.html