windows – 如何评估环境变量？

如果我有一个同名的系统和用户环境变量,他们如何处理？级联？用户覆盖系统？并计算在内,如果我需要添加一些更加方便添加的路径吗？

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.