在CLI环境中访问本地应用程序文件？

I'm not sure how to ask this, but I'll do my best. Anyway, my situation is this: I have files that I want my app/executable to be able to access at all times that are relative to the executable's path or in the same directory as the program. Since I want my program to be able to run in any CWD and still get everything it needs. I want to know what's the best way or method to get a file that's relative to my executable, that won't mess up the user's CWD?I'm not sure how to ask this, but I'll do my be