1. 删除远程分支：git push origin :branchname
2. 删除本地分支：git branch -d branchname
3. 创建并且切换到新建的分支：gti checkout -b branchname
4. 将本地分支推送到远程：git push origin branchname:branchname
5. 将远程分支拉去到本地：git checkout -b branchname origin/branchname
6. 将本地分支和远程分支关联，如果不关联，在git pull 和git push时会有提示。命令：
git branch --set-upstream-to=origin/remotebranchname localbranchname