谢谢qasa的提醒,谢谢你,我已经做来了
set choice=%date:~-3%
if /i "%choice%"=="星期一" echo 11>%date:~-3%.txt
if /i "%choice%"=="星期二" echo 11>%date:~-3%.txt
if /i "%choice%"=="星期三" echo 11>%date:~-3%.txt
if /i "%choice%"=="星期四" echo 11>%date:~-3%.txt
if /i "%choice%"=="星期五" echo 11>%date:~-3%.txt
if /i "%choice%"=="星期六" echo 11>%date:~-3%.txt