[文件操作] 批处理文件如何判断磁盘的总容量大小和判断一个盘符的类型？

wmic LogicalDisk where "DeviceID='C:'" get Size /value
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@echo off
set size=3221225472
wmic LogicalDisk where (DeviceID="C:") get Size /value>%temp%\a.txt
for /f "tokens=2 delims==" %%a in ('type %temp%\a.txt') do (
if "%%a" gtr "%size%" (echo 大于3GB) else (if "%%a" lss "%size%" (echo 小于3GB) else echo 等于3GB)
del %temp%\a.txt
)
pause
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@echo off
set size=3221225472
for /f "tokens=2 delims==" %%a in ('wmic LogicalDisk where "DeviceID='C:'" get Size /value') do (
	if "%%a" gtr "%size%" (
		echo 大于3GB
	) else if "%%a" lss "%size%" (
		echo 小于3GB
	) else (
		echo 等于3GB
	)
)
pause
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