# Filename : example.py
# Copyright : 2020 By Bianchenghao6
# Author by : bianchenghao6.com
# Date : 2020-08-22
 class Button(object):
    html = ""
    def get_html(self):
       return self.html
 class Image(Button):
    html = "<img></img>"
 class Input(Button):
    html = "<input></input>"
 class Flash(Button):
    html = "<obj></obj>"
 class ButtonFactory():
    def create_button(self, typ):
       targetclass = typ.capitalize()
       return globals()[targetclass]()
 button_obj = ButtonFactory()
 button = ['image', 'input', 'flash']
 for b in button:
    print button_obj.create_button(b).get_html()
 

<img> </img> 

 <input></input> 

 <obj></obj>