python 设计模式学习代码记录

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@工厂模式<br>class Beijing:     def printreslut(self):         print("ok") class Shanghai:     def printreslut(self):         print("shanghaiss") def get(name="beijing"):     result=dict(beijing=Beijing,shanghai=Shanghai)     return result[name]().printreslut() def  send(name):     if name=="beijing":         print("ok")     else:         print("找不到你要的答案") if __name__=='__main__':     send('shenzhen')     try:         get('shenzhen')     except KeyError as e:         print("找不到你要的答案")