如果使用ssh的方式管理，需要配置ssh key.
1、打开git bash命令窗口
2、生成ssh key
ssh-keygen -t rsa -b 4096 -C "your_email@example.com"
your_email@example.com为github上你注册的email地址。
如下面完整创建过程：
$ ssh-keygen -t rsa -b 4096 -C "test@qq.com"
Generating public/private rsa key pair.
Enter file in which to save the key (/c/Users/Administrator/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /c/Users/Administrator/.ssh/id_rsa.
Your public key has been saved in /c/Users/Administrator/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:chS9dRlB6Ee+E6/Ob9plXh5HXgDhhOk6mpST+oqrCxA test@qq.com
The key's randomart image is:
+---[RSA 4096]----+
| .. o++++ |
| .+oo.+ |
|E .. +.+. |
| . . o . +. |
|. .oS. . +o|
|. =oo ooo|
|. o + . +*|
|. .. o ..=*|
|ooo..o. .++=|
+----[SHA256]-----+
上面默认生成在用户主目录的.ssh目录下，可以自己输入自定义位置。
3、把ssh key添加到github
复制文件c/Users/Administrator/.ssh/id_rsa.pub内容，把key添加到：github > settings > SSH and GPG keys > New SSH key > 粘贴保存。
4、测试SSH连接
$ ssh -T git@github.com
如下面表示已经连接成功：
$ ssh -T git@github.com
Hi Javastack! You've successfully authenticated, but GitHub does not provide shell access.
现在你可以通过SSH方式来clone及提交代码了。
更多详细配置请参考官方配置：
https://help.github.com/articles/connecting-to-github-with-ssh/
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