7z源码编译、以此开发动态库，提供单个文件压缩、文件夹压缩、压缩文件解压，并返回处理进度，资源内容为动态库和测试demo，代码粗陋望包含-7z source compiler, in order to develop dynamic libraries, provides a single compressed file, folder compression, file decompression, and return processing schedule, resource librar