How to use the QM code to achieve the following CMD code effect

[win]

@kevin 

Thanks for your help, the above code can find the drive letter , 

is there an easier way? such as calling the system's API, or bat commond?

I found the following code, but I don't know how to handle the character number to get the drive letter.

Code:

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@echo off
for %%a in (c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z) do if exist %%a: for /f "tokens=3*" %%b in ('vol %%a:') do echo %%a:Label is：%%c
pause