一下是注册表项 [HKEY_LOCAL_MACHINE\Drivers\BuiltIn\SDMMC] "Dll"="sdmmc_loader.dll" "Prefix"="SML" "Order"=dword:2 "Ioctl"=dword:4 "Class"=dword:01 "SubClass"=dword:80 "ProgIF"=dword:0 "DeviceID"=dword:1100 "VendorID"=dword:15b7 "FSD"="fatfsd.dll" "Profile"="SDMMC" "IClass"="{A4E7EDDA-E575-4252-9D6B-4195D48BB865}"