用puttygen生成密钥,粘贴到gcp配置里的ssh密钥部分,保存密钥私钥,启动putty,输入ip,加载私钥,使用Key comment输入的用户名,成功登入
https://medium.com/@narayanan_ramakrishnan/connecting-to-a-google-cloud-virtual-machine-with-ssh-using-putty-7b6f0c0465cb