定时自动备份可以用计划任务
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schtasks /create /ru system /sc daily /mo 1 /st 18:00:00 /tn myback /tr "C:\test.bat"
test.bat
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@echo off
for /f "tokens=2 delims==" %%a in ('wmic path win32_operatingsystem get LocalDateTime /value') do set td=%%a
set td=%td:~0,8%
copy "D:\aa\abc.db" "E:\aabak\"
ren "E:\aabak\abc.db" "%td%.db"