【git】学习路径失败了

localhost:~ robin$ git clone https://github.com/****online/oxgren.git
Cloning into ‘oxgren‘...
remote: Counting objects: 104, done.
remote: Total 104 (delta 0), reused 0 (delta 0), pack-reused 104
Receiving objects: 100% (104/104), 149.05 KiB | 30.00 KiB/s, done.
Resolving deltas: 100% (14/14), done.
Checking connectivity... done.
localhost:~ robin$ ls
Desktop		Downloads	Movies		Pictures	oxgren
Documents	Library		Music		Public
localhost:~ robin$ cd oxgren/
localhost:oxgren robin$ git pull
Already up-to-date.
localhost:oxgren robin$ git push
warning: push.default is unset; its implicit value has changed in
Git 2.0 from ‘matching‘ to ‘simple‘. To squelch this message
and maintain the traditional behavior, use:

  git config --global push.default matching

To squelch this message and adopt the new behavior now, use:

  git config --global push.default simple

When push.default is set to ‘matching‘, git will push local branches
to the remote branches that already exist with the same name.

Since Git 2.0, Git defaults to the more conservative ‘simple‘
behavior, which only pushes the current branch to the corresponding
remote branch that ‘git pull‘ uses to update the current branch.

See ‘git help config‘ and search for ‘push.default‘ for further information.
(the ‘simple‘ mode was introduced in Git 1.7.11. Use the similar mode
‘current‘ instead of ‘simple‘ if you sometimes use older versions of Git)

Username for ‘https://github.com‘: online@qq.com
Password for ‘https://online@qq.com@github.com‘: 
Everything up-to-date
localhost:oxgren robin$ touch reamde1.txt
localhost:oxgren robin$ open reamde1.txt 
localhost:oxgren robin$ git add reamde1.txt 
localhost:oxgren robin$ git status
On branch master
Your branch is up-to-date with ‘origin/master‘.
Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

	new file:   reamde1.txt

localhost:oxgren robin$ git commit -m"test add readme.txt"
[master ad8eec6] test add readme.txt
 1 file changed, 1 insertion(+)
 create mode 100644 reamde1.txt
localhost:oxgren robin$ git status
On branch master
Your branch is ahead of ‘origin/master‘ by 1 commit.
  (use "git push" to publish your local commits)
nothing to commit, working directory clean
localhost:oxgren robin$ git push
warning: push.default is unset; its implicit value has changed in
Git 2.0 from ‘matching‘ to ‘simple‘. To squelch this message
and maintain the traditional behavior, use:

  git config --global push.default matching

To squelch this message and adopt the new behavior now, use:

  git config --global push.default simple

When push.default is set to ‘matching‘, git will push local branches
to the remote branches that already exist with the same name.

Since Git 2.0, Git defaults to the more conservative ‘simple‘
behavior, which only pushes the current branch to the corresponding
remote branch that ‘git pull‘ uses to update the current branch.

See ‘git help config‘ and search for ‘push.default‘ for further information.
(the ‘simple‘ mode was introduced in Git 1.7.11. Use the similar mode
‘current‘ instead of ‘simple‘ if you sometimes use older versions of Git)

Counting objects: 3, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 279 bytes | 0 bytes/s, done.
Total 3 (delta 1), reused 0 (delta 0)
To https://github.com/online/oxgren.git
   7b83831..ad8eec6  master -> master
localhost:oxgren robin$