<http://snippets.barretlee.com/#!/snippets/htaccess/www-no-www/> <https://github.com/barretlee/snippets/> <http://blog.csdn.net/maokelong95/article/details/54379046> <http://www.cnblogs.com/summit7ca/p/5225494.html> <https://code.visualstudio.com/docs/editor/userdefinedsnippets>