多进程

进程间通信的方法：

http://topic.youkuaiyun.com/u/20120727/10/e0d5f89d-fb52-4a43-afc8-ff0ae0275eb1.html?3882

http://blog.youkuaiyun.com/hanchaoman/article/details/4694812

http://blog.youkuaiyun.com/hanchaoman/article/details/5653520

http://blog.youkuaiyun.com/hanchaoman/article/category/721104

http://wenku.baidu.com/view/ef06061aff00bed5b9f31dd8.html

http://www.cnblogs.com/ceys/archive/2012/07/15/2592417.html

http://bbs.chinaunix.net/thread-606011-1-1.html

进程执行顺序问题：

http://topic.youkuaiyun.com/u/20101227/20/6faffd81-bde7-481b-9b3e-0a0a7b6dfd4e.html

http://zhidao.baidu.com/question/199402509.html

http://bbs.chinaunix.net/thread-741888-1-1.html