提供了最常用的 git 命令以及它们在 JGit 上对应部分的概述。本教程将依次介绍：创建一个存储库，从远程获取内容，向历史版本中添加和删除文件，检查历史操作，并最终将更改的文件推回到原始存储库(The most commonly used git commands and their overview of the corresponding parts on the JGit are provided. This tutorial will introduce in a successively: create a repository, extract content from remote, add and delete files to historical editions, check historical operations, and finally push the changed files back to the original repository.)