如果在使用hexo d命令的前提下，直接修改.git下面的config文件是无法成功的。
原因是：使用该命令之后，会根据_config.yml下面的deploy节点进行cofig文件的覆盖。
也就是说，_config.yml如果不做修改，无论如何修改.git下面的配置文件都是无效的，都会被覆盖。
能够在本地打开，但是部署不到github上去

hexo d的时候报错

$ hexo d
INFO Deploying: git
INFO Clearing .deploy folder...
INFO Copying files from public folder...
warning: LF will be replaced by CRLF in 2015/12/05/hello-world/index.html.
The file will have its original line endings in your working directory.
……
warning: LF will be replaced by CRLF in index.html.
The file will have its original line endings in your working directory.
warning: LF will be replaced by CRLF in js/script.js.
The file will have its original line endings in your working directory.
On branch master
nothing to commit, working directory clean
bash: /dev/tty: No such device or address
error: failed to execute prompt script (exit code 1)
fatal: could not read Username for 'GitHub · Where software is built': No error
FATAL Something's wrong. Maybe you can find the solution here: Troubleshooting
Error: bash: /dev/tty: No such device or address
error: failed to execute prompt script (exit code 1)
fatal: could not read Username for 'GitHub · Where software is built': No error

at ChildProcess.<anonymous> (E:\SwuComputer\HTML5\hexo\node_modules\hexo-deployer-git\node_modules\hexo-util\lib\spawn.js:42:17)
at emitTwo (events.js:87:13)
at ChildProcess.emit (events.js:172:7)
at maybeClose (internal/child_process.js:818:16)

at Process.ChildProcess._handle.onexit (internal/child_process.js:211:5)

详细答案：
有关使用 Hexo 和 GitHub 搭建博客，出现 hexo -d 报错如何解决？ -
https://www.zhihu.com/question/38219432

我试了了高票答案，但是发现不行，最后用下面这个解决了。

解决方法

修改配置文件：根目录下的_config.yml，修改deploy节点。

原来的配置为：

deploy:
   type: git
   repo: https://github.com/{yourname}/{yourname}.github.io.git
   branch: master

修改为如下：
deploy:
type: git
repo: https://{yourname}:{yourpassword}@github.com/{yourname}/{yourname}.github.io.git
branch: master

亲测可行!!!