如何评估Windows环境变量？

如果我有一个具有相同名称的系统和用户环境变量,它们是如何处理的？它们是连在一起的吗？用户变量是否覆盖系统变量？考虑到这一点,如果我需要在Path变量中添加一些内容,添加它会更方便吗？

我认为这篇文章应该回答你的问题： Environment variables in Windows NT

User environment variables

User environment variables can be viewed from Control Panel as well. The user may add,delete or modify the environment variables in the User Environment Variables for User field. These variables take precedence over system environment variables. The user path is appended to the system path.