git clone报错：Permission denied (publickey). fatal: Could not read from remote repository…

今天clone一份github代码，报错：Could not read from remote repository

Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

查了资料发现是因为本机的publickey没有添加到github（因为刚刚重装了系统），之前一直以为访问公开库没有添加公钥的要求，这波才知道原来只要是clone github代码就需要添加公钥

秘钥生成

ssh-keygen -t rsa -C "youremail"

密码不用设置，直接回车即可。完成后在 ~/.ssh 目录生成两个文件：id_rsa和id_rsa.pub

添加秘钥

在github上添加ssh密钥，这要添加的是id_rsa.pub里面的公钥
在github官网，点击头像->Settings->SSH and GPG keys->New SSH key，添加公钥即可

添加公钥之后，就可以从github正常拉取代码了