https://www.ibm.com/developerworks/cn/linux/l-cn-vimcolumn/
https://www.zhihu.com/question/19968224
http://www.cnblogs.com/xiaowant/articles/1992923.html
https://blog.csdn.net/hachirou/article/details/7761625
https://www.ibm.com/developerworks/cn/linux/l-cn-vimcolumn/
https://www.zhihu.com/question/19968224
http://www.cnblogs.com/xiaowant/articles/1992923.html
https://blog.csdn.net/hachirou/article/details/7761625