### 为什么将自己修改内容上传到主分支叫pull request，而不是push request？

https://stackoverflow.com/questions/21657430/why-is-a-git-pull-request-not-called-a-push-request


1、Picture a big, living tree. The tree is too sturdy for you to push a branch into in, instead you must ask the tree to pull a branch into the trunk, strengthening it.

2、If you have a code change in your repository, and want to move it to a target repository, then:
“Push” is you forcing the changes being present in the target repository (git push).
“Pull” is the target repository grabbing your changes to be present there (git pull from the other repo).
A “pull request” is you requesting the target repository to please grab your changes.
A “push request” would be the target repository requesting you to push your changes.

3、When you send a pull request, you’re asking (requesting) the official repo owner to pull some changes from your own repo. Hence “pull request”.

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