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首先在github上新建一个仓库：


gitrepositytest

创建之后进入新建的仓库，下面有提示的命令行操作

echo "# gitrepositytest" >> README.md
git init
git add README.md
git commit -m "first commit"
git remote add origin https://github.com/matengbing/gitrepositytest.git
git push -u origin master

按照提示的代码操作

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github (master)
$ mkdir gitrepositytest

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github (master)
$ cd gitrepositytest/

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (master)
$ echo "# gitrepositytest" >> README.md

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (master)
$ git init
Initialized empty Git repository in D:/github/gitrepositytest/.git/

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (master)
$ git add README.md
warning: LF will be replaced by CRLF in README.md.
The file will have its original line endings in your working directory

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (master)
$ git commit -m "first commit"
[master (root-commit) bb26e9f] first commit
 1 file changed, 1 insertion(+)
 create mode 100644 README.md

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (master)
$

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (master)
$

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (master)
$ git remote add origin https://github.com/matengbing/gitrepositytest.git

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (master)
$ git push -u origin master
Enumerating objects: 3, done.
Counting objects: 100% (3/3), done.
Writing objects: 100% (3/3), 228 bytes | 228.00 KiB/s, done.
Total 3 (delta 0), reused 0 (delta 0)
remote:
remote: Create a pull request for 'master' on GitHub by visiting:
remote:      https://github.com/matengbing/gitrepositytest/pull/new/master
remote:
To https://github.com/matengbing/gitrepositytest.git
 * [new branch]      master -> master
Branch 'master' set up to track remote branch 'master' from 'origin'.

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (master)
$

如果github没有新建仓库，直接在命令行操作push会报错

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (master)
$ git remote add origin https://github.com/matengbing/gitrepositytest.git

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (master)
$ git push -u origin master
remote: Repository not found.
fatal: repository 'https://github.com/matengbing/gitrepositytest.git/' not found

上传成功后在github仓库界面查看

接着，我们在命令行创建一个分支feature-develop并切换分支

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (master)
$ git checkout -b feature-develop
Switched to a new branch 'feature-develop'

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (feature-develop)
$ git branch
* feature-develop
  master

新建一个文件，add,commit之后push到远程分支(没有建立新分支，直接push会自动创建分支)

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (feature-develop)
$ touch test.txt

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (feature-develop)
$ git add test.txt

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (feature-develop)
$ git status
On branch feature-develop
Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

        new file:   test.txt


matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (feature-develop)
$ git commit -m "test.txt"
[feature-develop 7f24aea] test.txt
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 test.txt

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (feature-develop)
$ git push origin feature-develop
Enumerating objects: 4, done.
Counting objects: 100% (4/4), done.
Delta compression using up to 8 threads
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 271 bytes | 271.00 KiB/s, done.
Total 3 (delta 0), reused 0 (delta 0)
remote:
remote: Create a pull request for 'feature-develop' on GitHub by visiting:
remote:      https://github.com/matengbing/gitrepositytest/pull/new/feature-develop
remote:
To https://github.com/matengbing/gitrepositytest.git
 * [new branch]      feature-develop -> feature-develop

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (feature-develop)
$

在github仓库界面查看新分支

已经建立了新的分支，代码也已经上传到新分支

查看所有分支信息

$ git branch -av
* feature-develop                7f24aea test.txt
  master                         bb26e9f first commit
  remotes/origin/feature-develop 7f24aea test.txt
  remotes/origin/master          bb26e9f first commit

matengbing@LAPTOP-AGEC3S6U MINGW64 /d/github/gitrepositytest (feature-develop)
$