git的subtree和submodule区别？

Question

发现两者都是引入其他git仓库，似乎tree是module的改进版本，是module有什么非常不能忍受的缺点么？

Answer 1

Personally, I think the biggest advantage is that you don’t have to init and update every time a sub-project is modified like a submodule. If there is no update, just "commit -a" or "add." and it will be a tragedy to commit everything.
You can also look here for details