7_25 day27 str repr 15min

class Foo:
    pass
    def __str__(self):
        return  'shabi'
    def __init__(self,name,age):
        self.name=name
        self.age=age
    def __str__(self):
        return '名字是%s 年龄是%s' %(self.name,self.age)

f1=Foo()
print(f1)
# # f1=Foo('egon',18)
# print(f1) #str(f1)--->f1.__str__()
#
# x=str(f1)
# print(x)
#
# y=f1.__str__()
# print(y)



# class Foo:
#     def __init__(self,name,age):
#         self.name=name
#         self.age=age
#     # def __str__(self):
#     #     return '折是str'
#     def __repr__(self):
#         return '名字是%s 年龄是%s' %(self.name,self.age)
#
# f1=Foo('egon',19)
# #repr(f1)---->f1.__repr__()
# print(f1) #str（f1）---》f1.__str__()------>f1.__repr__()