How to change the name of an environment variable with a different variable?

问题

Is there a method to name an environment variable dynamically using another environment variable in a batch file?

Something like

numplayers=3
char%numplayer%atk=12 
echo char3atk  

with output

12

回答1:

It's quite straightforward:

SET numplayers=3
SET char%numplayers%atk=12
ECHO %char3atk%

回答2:

Given that you are unlikely to know beforehand the number assigned to %numplayers%, here are a few ways you can see the value of the variable:

Set "numplayers=3"
Set "char%numplayers%atk=12"
Call Echo %%char%numplayers%atk%%

 

Set "numplayers=3"
Set "char%numplayers%atk=12"
Set char%numplayers%atk

 

SetLocal EnableDelayedExpansion
Set "numplayers=3"
Set "char%numplayers%atk=12"
Echo !char%numplayers%atk!

来源：https://stackoverflow.com/questions/49984527/how-to-change-the-name-of-an-environment-variable-with-a-different-variable