To quickly discover these locations, the packer uses a sophisticated 41 /// data structure that stores the upper silhouette of the packing area. When 42 /// a new rectangle needs to be added, only the silouette edges need to be 43 /// analy

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.