打包器的实现共分四个部分，分文主界面、文件选择界面、DRM模块和数据库模块。-Packer realization is divided into four parts, a penny main interface, file selection interface, DRM module and database module.

本打包文件深入浅出，阐述PID算法及其应用-Pid algorithm and its implementation

学习普图，从网上收集下载到的，可以跟着学习，规划自己历程。。。。(Learning line, collected from the Internet to download, you can follow to learn, to plan their course)