1、打开你公司的git账号，左边目录会有一个钥匙串，然后点击，会有一个SSH配置教程，点击即可看到这个界面，然后打开终端
2、在终端中直接输入以下命令
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$ssh-keygen -t rsa -C “${YourEmail}” # “-t rsa”表示使用密钥的加密类型，还可以为dsa；-C设置注释文字，比如你的邮箱“YourEmail”，不一定要是github注册邮箱
Enter file in which to save the key (/Users/faner/.ssh/id_rsa): # 直接回车
Enter passphrase (empty for no passphrase): # 输入密钥文件授权密码
Enter same passphrase again: # 确认密钥文件授权密码
Your identification has been saved in /Users/faner/.ssh/id_rsa.
Your public key has been saved in /Users/faner/.ssh/id_rsa.pub.
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3、id_rsa私钥类似keychain进行CSR时生成的private key；id_rsa.pub公钥则类似CSR申请下来的开发证书（在Apple Member Center中有在线备案）。
cat id_rsa.pub 或者 pbcopy < ~/.ssh/id_rsa.pub（此命令直接复制了公钥内容，直接可以使用） #查看公钥内容
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQChNZLq33LwvBr+QJfrdYrHA8SIDFcfw3H2vr0uJbK+erGLal32u/JJFYUf4jMIHhFLiF/J2TbpVuAa7r9/eNyjWw8M3ptoWlJq8Sw7tHU8me80Whklr771wjKt8HVX/1Ck7evZ0OcqsdosucKXdtUQgxDXV7wMdGhTdmjxqpuwqeI53gPxuFR0TNm5ROidD5yzsJYcI7HGNj7F0OPthgebl/x/deNQlUNiUhiAE0CJ/qu5EIprw9qUbgvQuDSrJhAPUuGY9x9jkHP7aTa784zZz10rpaR4nX/T0M7mwFgHicM/+O5F/y2wXwNrzDnhhGPYfMBmzQOuJG4c84fjVuOL YourEmail.com
4、将公要内容复制，点击Add SSH Key 按钮，在Key文本框将此内容粘贴， Title命一个名字进行区分
这时看到添加成功了一个配置
5、本机通过ssh-keygen生成公钥后，执行ssh -T git@github.com
The authenticity of host ‘gitlab2..com (192.168.20.100)’ can’t be established.
RSA key fingerprint is SHA256:qKZZrX7I9GM/aX4JWh7upbgiLa7fYZidz8+HnA6151I.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added ‘gitlab2.xiniunet.com,192.168.20.100’ (RSA) to the list of known hosts.
Welcome to GitLab, zhangming!
在本地创建一个文件夹执行 git clone git@gitlab2.xxxxxxx.git 命令，验证是附配置成功
博主提供一篇讲解比较全的博客
