版本历史

历史可以查看旧稿、比较修改或恢复内容。先选择需要恢复的范围：一句话、一份文件，还是整个项目。

文件历史与项目快照

短时间内连续手动保存的改动可能合并到同一历史版本，包括小幅修改。额度按手动版本计数，AI 和系统备份不占用这部分额度。额度用满后仍可合并已有版本；无法合并时，正文照常保存，但不新增版本。

查看和比较文件版本

1. 打开目标文件，进入文件历史。
2. 点击版本的查看入口阅读旧文。
3. 选中两个版本，点击“比较”，查看增加、删除和替换的段落。

手机端查看或比较时会进入内容面板，返回后可以继续选择版本。列表还有更多记录时，使用加载更多。

只想取回一句话，复制旧文中需要的部分，关闭历史，放回现稿并保存。这样可以保留后来采用的其他修改。

恢复整份文件

选定版本，点击恢复并确认。恢复会替换当前文件正文；执行前先处理未保存修改。

服务端在覆盖前会为尚未进入历史的当前正文保留备份，备份失败则取消恢复。恢复后检查正文和历史，确认得到预期版本。历史仍不代替你独立保留的重要原稿。

比较和恢复项目

项目历史的比较会列出新增、移除和修改的文件及版本号。需要看具体措辞时，再打开对应文件历史。

恢复项目会影响多个文件，可能恢复旧标题、位置和内容，也会移除目标快照中没有的后续文件。服务端会先创建回滚前快照，再执行恢复。

执行前确认受影响文件，把需要保留的后续内容另存。只想恢复一个文件时，不要选择项目回滚。

历史里找不到想要的文字

先确认账号、项目和文件是否正确，再检查是否还有未保存草稿，或内容只出现在聊天里。新保存不一定新增历史记录；不要为了“试恢复”删除文件。

需要独立副本，见导出正文；未保存或冲突处理，见编辑器。

Version history

Use history to read older prose, compare changes, or restore content. Choose the scope first: a sentence, a file, or the whole project.

File history and project snapshots

Consecutive manual saves close together may share one history version, including small edits. The allowance counts manual versions; AI changes and system backups do not use it. A full allowance still permits merging into an existing version. If merging is unavailable, your text is saved without adding a version.

Read and compare file versions

1. Open the target file and its history.
2. Use a version's view control to read the older text.
3. Select two versions and choose Compare to inspect added, removed, and replaced passages.

On a phone, viewing or comparing opens a content panel; return to select another version. Use Load More when further records are available.

To recover one sentence, copy it from the old text, close history, paste it into the current draft, and save. This preserves later changes you still want.

Restore the whole file

Select a version, choose Restore, and confirm. Restoration replaces current prose; resolve unsaved changes first.

Before replacement, the server retains a backup of current prose that has not entered history. If that backup fails, restoration is cancelled. Check prose and history afterward. History still does not replace separate copies of important originals.

Compare and restore a project

Project comparison lists added, removed, and changed files with version numbers. For precise wording, open the corresponding file history.

Project restoration affects multiple files. It can restore titles, locations, and content, and remove later files absent from the target snapshot. The server creates a pre-rollback snapshot before restoring.

Check the affected files and retain later text you need first. To recover one file, use file restoration instead of project rollback.

When text is missing from history

Check the account, project, and file, then look for unsaved drafts or text that exists only in chat. A save does not always add a record. Do not delete files to experiment with recovery.

For independent copies, see export. For unsaved work and conflicts, see the editor.