tornado第一步

安裝 pip install tornado

 

import tornado.ioloop
import tornado.web

class Demo(tornado.web.RequestHandler):
    def get(self):
         self.write('hello world')
       
)


if __name__ == '__main__':
    application = tornado.web.Application([
        (r'/', Demo)
    ])
    application.listen(8888)
    # 啓動事件循環機制
    tornado.ioloop.IOLoop.current().start()