python工具，使用tkinter实现gui设计，用于在线下载第三方库wheel文件，离线安装第三方库wheel文件。适合需要从外网导入第三方库进内网的朋友，本工具提供了在线下载和离线安装两个功能模块。 在线下载 本模块基于pip download ...

After the JVM spec has been implemented and released as a software product, you may download and run it as a program. That downloaded program is an instance (or instantiated version) of the JVM.