git subtree add --prefix=<sub-repository-path> <sub-git-url> master [--squash] 在父仓库中新增子仓库git subtree pull --prefix=<sub-repository-path> <sub-git-url> master [--squash] 拉取更新子仓库git subtree push --prefix=<sub-repository-path> <sub-git-url> master 推送子仓库git remote add -f <sub-remote-git> <sub-git-url>
git subtree add --prefix=<sub-repository-path> <sub-remote-git> master