I detailed steps are as follows:
1. Mr Into local public and private keys
2. Then I log in making account, then the public key configuration in
3. The local through the git bash, I use the git clone [SSH address] to pull dead simple project, found that pull success

I want to ask is:
Public and private keys is a one-to-one relationship, I have a private key local, I have a lot of account public key, when I pull others projects, there is no login account in making, so local private key is how to know of parsing is making a public key, is every the public key of making account check again, if the private key is the key, the public key is locked, can't SSH pull project as a key had many locks to try it again?