优化以下代码：echo -off for i in fs0 fs1 fs2 fs3 fs4 fs5 fs6 fs7 fs8 fs9 fsa fsb fsc if exist iefi then i goto flashbios endif endfor flashbios FNSH pause

@echo off

set "drives=fs0 fs1 fs2 fs3 fs4 fs5 fs6 fs7 fs8 fs9 fsa fsb fsc"

for %%i in (%drives%) do ( if exist %%i:*.efi ( %%i: goto flashbios ) )

:flashbios F.NSH pause