1.File Attributes(文件属性) Information about files are kept in the directory structure,which is also maintained on the secondary storage other all file file attributes attributes identifier identifier name name directory structure 1 directory structure 2 Typically,a directory entry only consists of the file's name and its unique identifier. The identifier in turn locates the other file attributes.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. File Attributes (文件属性) ▶ Information about files are kept in the directory structure, which is also maintained on the secondary storage all file attributes identifier name directory structure 1 identifier name other file attributes directory structure 2 ▶ Typically, a directory entry only consists of the file’s name and its unique identifier. The identifier in turn locates the other file attributes