为不同Git账户生成对应的SSH秘钥（Mac）

1.切换到.ssh目录下

cd ~/.ssh

2.生成ssh key(有对应多少个git账户就生成多少不同的ssh key，邮箱记得换（随便写）)

ssh-keygen -t rsa -C "person@longtiequan.com"

3.取一个对应的名字，记住(person_longtiequan),然年两下回车，密码不要设置(不然每次推拉都要你输)

macdeMacBook-Pro:.ssh wangzhe$ ssh-keygen -t rsa -C "person@longtiequan.com"
Generating public/private rsa key pair.
Enter file in which to save the key (/Users/wangzhe/.ssh/id_rsa): person_longtiequan

4.去对应的git远端绑定该生成的ssh key,获取方法：

cat person_longtiequan.pub

5.在.ssh目录下生成一个config文件

vim config

6.在config中为各个git账号的Host配置别名和对应的ssh key,如下配置config内容，完成后:wq退出保存（之前用shift + zz退出会有问题，原因不详）


#个人
Host longtiequan.com    # host别名
        HostName code.aliyun.com    # 原host
        IdentityFile ~/.ssh/person_longtiequan  # 对应的ssh key 路径
#工作1        
Host workfirst.com    
        HostName code.aliyun.com    
        IdentityFile ~/.ssh/work_first  
#工作2
Host worksecond.com
        HostName code.aliyun.com
        IdentityFile ~/.ssh/work_second

7.在对应的项目git config文件中，修改host为设置好的别名host

[core]
    repositoryformatversion = 0
    filemode = true
    bare = false
    logallrefupdates = true
    ignorecase = true
    precomposeunicode = true
[remote "origin"]
    url = git@longtiequan.com:Jason/BaseProject.git
    fetch = +refs/heads/*:refs/remotes/origin/*
[branch "master"]
    remote = origin
    merge = refs/heads/master