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/**
* ?????????????
* @author ???д?
*/
public interface BackupService {
/**
* ?????????
* @return ???????
*/
public boolean backup();
/**
* ????????
* @param date
* @return ????????
*/
public boolean restore(String date);
/**
* ??????????????????????б?
* @return  ????????????б?
*/
public List<String> getExistBackupFileNames();
/**
* ??????????????????????·??
* @return ??????????·??
*/
public String getBackupFilePath();
/**
* ????μ???????
* @return ?μ???????
*/
public File getNewestBackupFile();}