assert 条件 断言，强制用户服从，

不服从就报错，可捕获，一般不捕获。。。。

如果条件成立，继续执行，如果不成立报错

#__author:   han-zhang
#date:  2019/2/16 23:10

# print(23)
# assert 1==1
# print(234)
#
# class Foo:
#     def __init__(self,name,age):
#         self.name=name
#         self.age=age
#
#     def show(self):
#         return '%s-%s' %(self.name,self.age)
#
# obj=Foo("alex",19)
# v=getattr(obj,'name')
# print(v)
# v=hasattr(obj,'name')
# print(v)
# v=setattr(obj,'k1','v1')
# print(getattr(obj,'k1'))
# # v=delattr(obj,'name')
# # print(obj.name)
import fs

#例子
inp = input("请输入要查看的url:")
# if inp =='f1':
#     f1()
# if inp =="f2":
#     f2()
# if inp =="f3":
#     f3()
func = getattr(fs,inp)
result = func()
print(result)