http://nanwangting.blog.51cto.com/608135/1118828
py+mysql：
http://www.tuicool.com/articles/6fqAvia
http://www.cnblogs.com/fkissx/p/5617630.html
http://www.open-open.com/doc/view/229c932028fe4db6ab6f930f679a2031/
