1.在使用git对源代码进行push到github时，出现了好几次这种情况：
1 $ git push -u origin master
2 To github.com:wangmengjun142857/wangmengjun142857.github.io.git
3 ! [rejected] master -> master (fetch first)
4 error: failed to push some refs to 'git@github.com:wangmengjun142857/wangmengjun142857.github.io.git'
5 hint: Updates were rejected because the remote contains work that you do
6 hint: not have locally. This is usually caused by another repository pushing
7 hint: to the same ref. You may want to first integrate the remote changes
8 hint: (e.g., 'git pull ...') before pushing again.
9 hint: See the 'Note about fast-forwards' in 'git push --help' for details.
出现错误的主要原因是github中的README.md文件不在本地代码目录中。使用如下命令即可进行代码合并：git pull --rebase origin master，执行上面代码后可以看到本地代码库中多了README.md文件，此时再执行语句 git push -u origin master即可完成代码上传到github。
2. hexo安装没问题，但不能访问 localhost:4000，是因为电脑端口（4000）被（福昕阅读器）占用。使用如下命令行： hexo s -p 5000 将端口换成5000即可。
3. hexo+github pages搭建的个人网站算是完成了，但问题还是很大，下午换主题失败，个人网站该放一放了。忙完更重要的事再好好研究。