添加Windows的envs

本文主要是介绍添加Windows的envs，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！

In Windows, environment variables can be applied in two ways.

Set modifies the current shell's (the window's) environment values, and the change is available immediately, but it is temporary.

The change will not affect other shells that are running, and as soon as you close the shell, the new value is lost until such time as you run set again.

cmd> SET ADDR=127.0.0.1
cmd> SET TOKEN=ABCD1234
cmd> SET

setx modifies the value permanently, which affects all future shells, but does not modify the environment of the shells already running.

You have to exit the shell and reopen it before the change will be available, but the value will remain modified until you change it again.

cmd> setx ADDR "127.0.0.1"
cmd> setx TOKEN "ABCD1234"
cmd> SET

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