在终端输入命令：$ cd ~/.ssh 查看是否存在ssh文件

• 存在

打开终端输入 open ~/.ssh
cat id_rsa.pub    //打开id_rsa.pub文件，复制密钥

• 不存在

$ ssh-keygen -t rsa -C "邮箱地址"    #邮箱地址为公司的gitlab邮箱，生成KEY
Generating public/private rsa key pair.
Enter file in which to save the key (/c/Users/用户/.ssh/id_rsa):    //密钥的目录
Created directory '/c/Users/用户/.ssh'.
Enter passphrase (empty for no passphrase):    //密码设置为空
Enter same passphrase again:
Your identification has been saved in /c/Users/用户/.ssh/id_rsa.
Your public key has been saved in /c/Users/用户/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:******* **** //公钥
The key's randomart image is:
+---[RSA 3072]----+
|     o.*+ . .o.. |
|    + *o*. .. .  |
|     *.B       o |
|      +. .    . .|
|      . S E .  . |
|     . . + = .o  |
|    . . + +.*. . |
|     . o.+o@.    |
|        o*B.o    |
+----[SHA256]-----+