几篇不错的文章~
http://blog.csdn.net/a258831020/article/details/48826501
http://blog.csdn.net/a258831020/article/details/49444409
http://blog.csdn.net/a258831020/article/details/49077123
http://blog.csdn.net/a258831020/article/details/48439423
http://blog.csdn.net/a258831020/article/details/49074725