在 MacOS、.Net Core 3.1 /.Net 5.0 上看不到 C# 中的系统环境变量。 （视觉工作室）

Question

I am trying to use an environment variable in a code. First of all, I have set them in ~/.zprofile, I can receive them via getenv in shell and via relevant methods in Java, NodeJS, Python.

However, this doesn't work with C#.

---

What I tried: foreach (String name in Environment.GetEnvironmentVariables(EnvironmentVariableTarget.Process).Keys) { Console.Write(name + "="); Console.WriteLine(Environment.GetEnvironmentVariables(EnvironmentVariableTarget.Process)[name]); } This does print several env variables. Not the ones I need.

---

And when I try:

        foreach (String name in Environment.GetEnvironmentVariables(EnvironmentVariableTarget.User).Keys)
        {
            //Never get here                                                                                             
        }

        foreach (String name in Environment.GetEnvironmentVariables(EnvironmentVariableTarget.Machine).Keys)
        {
            //Never get here                                                                                                }
        }

This prints nothing.

---

How can I find my environment variables? Thanks

Edit: restarting Visual Studio via GUI didn't help. The env variables were not new.

Answer 1

Once I closed Visual Studio and opened it from the terminal

open /Applications/Visual\ Studio.app 

I saw all of my env variables here: Environment.GetEnvironmentVariables(EnvironmentVariableTarget.Process) which is the same as: Environment.GetEnvironmentVariables()

So the issue seems specific to Visual studio on Mac, with a specific solution.