怎样建立批处理,用winrar命令行压缩A目录N天前的文件到另外B目录,然后...答:exe" a /ibck /m5 %src%backup%DATE:~0,4%%DATE:~5,2%%DATE:~8,2%.rar D:\backup%DATE:~0,4%%DATE:~5,2%%DATE:~8,2 del /q /s D:\backup%DATE:~0,4%%DATE:~5,2%%DATE:~8,2 forfiles /p %des% /s /d -7 /c "cmd /c del /q @file 这里面N为7,自己改下 ...