Enter passphrase for key '/c/Users/用户名/.ssh/id_rsa':
1.输入命令
ssh-keygen -p
2.确定修改的私钥，直接回车
Enter file in which the key is (C:\Users\用户名/.ssh/id_rsa):
3.输入旧密码
Enter old passphrase:
4.输入新密码，不需要密码就直接回车
Enter new passphrase (empty for no passphrase)
5.再次输入密码
Enter same passphrase again:
6.完成
Your identification has been saved with the new passphrase.
