windows电脑重装系统，去官网下载了最新的git安装，一路next下来，打开bash按老路子设置，生成公钥
git config --global user.name "yourname"
git config --global user.email "your@email.com"
ssh-keygen -t rsa -C "your@email.com"
把公钥添加到阿里云，clone代码时拉不下来，报错。
Unable to negotiate with **** port 22: no matching host key type found. Their offer: ssh-rsa
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
查看自己是开发者权限，重置一遍公钥再添加也不行，去网上找方法，介绍这种情况的原因就是新的ssh客户端不支持ssh-rsa算法，要修改本地配置重新使用ssh-rsa算法。
具体做法：到当前用户目录下的.ssh文件中创建config文件（config没有后缀），使用记事本打开添加如下
Host *
HostkeyAlgorithms +ssh-rsa
PubkeyAcceptedKeyTypes +ssh-rsa
参考链接：https://blog.csdn.net/gongjin28_csdn/article/details/120783931
https://ttys3.dev/post/openssh-8-8-p1-no-matching-host-key-type-found-their-offer-ssh-rsa/