更新块中的每个页，使之看上去为空(物理数据仍然在，但是它们的slot目录项被设为已删除)。

Updates each page of the block so that it appears empty (the physical data remains, but their slot directory entries are set to deleted).

youdao

更新块中的每个页，使之看上去为空(物理数据仍然在，但是它们的slot目录项被设为已删除)。

Updates each page of the block so that it appears empty (the physical data remains, but their slot directory entries are set to deleted).

youdao