一个截图软件和一个多线程下载器 可以截屏幕窗口或者桌面 下载器暂时只能支持本机回路下载，只要是让大家看清我的思路就行，其它的功能要实现就简单了-A screenshot of the software and a multi-threaded download manager can intercept screen, window or the desktop downloader can only support the local loop being downloaded, as

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