git 解决：The authenticity of host '[ssh.github.com]:443 ([192.30.253.123]:443)' can't be established.

git 解决：The authenticity of host ‘[ssh.github.com]:443 ([192.30.253.123]:443)’ can’t be established. 换了一部电脑，git clone的时候，报了这样的错误：git The authenticity of host '[ssh.github.com]:443 ([192.30.253.123]:443

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