12.1.删除指定目录中的内容: del /Q E:\DATABAK\* copy 1.txt bak\a.txt 12.2.可用的备份计划: 1.脚本: BakScripts @echo off REM ------------------------------------------------------------------------------ REM author liuchang by 2019/4/30 REM 定时备份数据库,本地保留10天: REM ----------…