Python入门学习的流程分享

In [42]: [(x,y) for x in range(3) for y in range(3)]

Out[42]: [(0, 0), (0, 1), (0, 2), (1, 0), (1, 1), (1, 2), (2, 0), (2, 1), (2, 2)]

In [43]: [[x,y] for x in range(2) for y in range(2)]

Out[43]: [[0, 0], [0, 1], [1, 0], [1, 1]]

import web

urls = ('/hello', 'hello',

       )

class hello(object):

  def GET(self):

    return 'hello world'

if __name__ == "__main__":

  app = web.application(urls, globals())

  app.run()