说明：  NSIS（Nullsoft Scriptable Install System）是一个开源的 Windows 系统下安装程序制作程序。它提供了安装、卸载、系统设置、文件解压缩等功能。
(NSIS (Nullsoft Scriptable Install System) is an open source Windows system under the installer program. It provides functions such as installation, uninstall, system setup, file decompression, and so on.)