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Cannot ssh to localhost, but can ssh to others

Currently, I met a problem, I cannot ssh to localhost in MacBook, but can ssh to other computers from MacBook. This is the output of the command.

    ssh -v localhost
    OpenSSH_7.6p1, LibreSSL 2.6.2
    debug1: Reading configuration data /etc/ssh/ssh_config
    debug1: /etc/ssh/ssh_config line 52: Applying options for *
    debug1: Connecting to localhost port 22.
    debug1: Connection established.
    debug1: key_load_public: No such file or directory
    debug1: identity file /Users/something/.ssh/id_rsa type -1
    debug1: key_load_public: No such file or directory
    debug1: identity file /Users/something/.ssh/id_rsa-cert type -1
    debug1: key_load_public: No such file or directory
    debug1: identity file /Users/something/.ssh/id_dsa type -1
    debug1: key_load_public: No such file or directory
    debug1: identity file /Users/something/.ssh/id_dsa-cert type -1
    debug1: key_load_public: No such file or directory
    debug1: identity file /Users/something/.ssh/id_ecdsa type -1
    debug1: key_load_public: No such file or directory
    debug1: identity file /Users/something/.ssh/id_ecdsa-cert type -1
    debug1: key_load_public: No such file or directory
    debug1: identity file /Users/something/.ssh/id_ed25519 type -1
    debug1: key_load_public: No such file or directory
    debug1: identity file /Users/something/.ssh/id_ed25519-cert type -1
    debug1: Local version string SSH-2.0-OpenSSH_7.6
    ssh_exchange_identification: read: Connection reset by peer