http://www.tornadoweb.org/en/stable/
http://www.cnblogs.com/fanweibin/p/5418697.html
import tornado.ioloop
import tornado.webclass MainHandler(tornado.web.RequestHandler):
def get(self):
self.write("Hello, world")application = tornado.web.Application([
(r"/index", MainHandler),
])if __name__ == "__main__":
application.listen(8888)
tornado.ioloop.IOLoop.instance().start()