Tornadao—输出

• write(chunk)

  ---

  将chunk数据写到输出缓冲区。我们可以像写⽂件⼀样多次使⽤write⽅法不断
  追加响应内容，最终所有写到缓冲区的内容⼀起作为本次请求的响应输出。
  如果chunk是字典，write⽅法可以将其序列化为字符串
  
  class IndexHandler(RequestHandler):
   def get(self):
   self.write("hello itcast 1!")
   self.write("hello itcast 2!")
   self.write("hello itcast 3!")
   
  class IndexHandler(RequestHandler):
   def get(self):
      stu = {
   "name":"zhangsan",
   "age":24,
   "gender":1,
   }
   self.write(stu)

  ---

  import tornado.web
  import tornado.ioloop
  import tornado.options
  from tornado.web import url
  
  from settings import params
  
  
  # 定义接收参数的名称和类型，缺省值
  tornado.options.define('p',default=9090,type=int)
  
  class IndexHandler(tornado.web.RequestHandler):
      def get(self):
          self.write("不到长城非好汉")
  
  
  class ShowHandler(tornado.web.RequestHandler):
      # 接收路由中的附加参数，参数个数和initialize中参数一致
      def initialize(self,name,age):
          self.name = name
          self.age = age
      # def initialize(self,**kwargs):
      #     self.name = kwargs.get('name')
      #     self.age = kwargs.get('age')
  
      def get(self):
          self.write("姓名:{}".format(self.name))
  
  
  class ListHandler(tornado.web.RequestHandler):
      def get(self):
          self.write("路由")
  
  
  class DetailHandler(tornado.web.RequestHandler):
      def get(self,aid):
          print(aid,type(aid))
          self.write("详细信息"+aid)
  
  
  def main():
      # 接收命名行参数
      tornado.options.parse_command_line()
      # 路由的写法
      app = tornado.web.Application(
          [(r'/',IndexHandler),
           (r'/show/',ShowHandler,{'name':'admin','age':20}),
           url(r'/list/',ListHandler,name='list'),
           (r'/detail/(\d+)/',DetailHandler),
           ],
          **params
      )
      app.listen(tornado.options.options.p)
      tornado.ioloop.IOLoop.current().start()
  if __name__ == '__main__':
      main()