關(guān)于git的問(wèn)題，不能push

和之前一樣，最后一步執(zhí)行g(shù)it push origin master，這時(shí)候提示失敗：
Permission denied (publickey).
fatal: Could not read from remote repository.

然后重新設(shè)了ssh秘鑰，并且ssh -T git@github.com是可以的，返回：
Hi xxxxxx! You've successfully authenticated, but GitHub does not provide shell access.Connection to github.com closed.
但是，git push的時(shí)候，總是失敗，提示是：
Permission denied (publickey).
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.

在網(wǎng)上看到好多答案，比如在 .ssh 文件夾中執(zhí)行 ssh-add id_rsa，返回是：
Could not open a connection to your authentication agent.
又比如，git/config設(shè)置的倉(cāng)庫(kù)url地址和github使用的鏈接地址是否一致（注：這個(gè)不明白在哪里執(zhí)行，就去找到想要push的文件執(zhí)行了），

cat .git/config，返回是：
[core]

    repositoryformatversion = 0
    filemode = false
    bare = false
    logallrefupdates = true
    symlinks = false
    ignorecase = true
    hideDotFiles = dotGitOnly
    這個(gè)返回跟網(wǎng)上看到的返回不一樣，不知道怎么改。
    各位大神賜教?。。?！