代码版本分支管理示意图：Main、Hotfix、Dev、Feature、Release

Dev发布后才会并入Main，同时产生Release

Dev merges into Main only after release, which also generates a Release.

Hotfix来自Main，修复后并入最新的Main并同步到最近的Dev以便被带入到下一个Main

Hotfixes come from Main, and after being fixed, they are merged into the latest Main and synchronized to the most recent Dev to be included in the next Main.

3. Release只能做面向发布的修改，并在修改后并入Dev，以便随着Dev下次发布时在并入Main

Release can only have release-oriented modifications, and after these modifications, it should be merged into Dev to be included in Main during the next Dev release.

4. Feature需要并入Dev演进的轨道

Feature needs to be merged into the evolving track of Dev.