
CODE: [Copy to clipboard]if not exist %date:~4\nul (xcopy /d /e x:\*.* %date:~4%\ >nul 2>nul && echo %date:~4% %time% 备份数据成功>> log.txt || echo %date:~4% %time% 备份数据失败>> log.txt) else (echo %date:~4% %time% 目录已经存在>> log.txt)
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