dictdictdictdict

info={'name':'章子怡','actress':'big star'}

print(info['name'])

print(info['actress'])

x=info.get('agee')

print(x)

#这个确实是get方法啊，因为没有这个值的会返回是null,而不是报错。

info={'name':'章子怡','actress':'big star'}

print(type(info))

age=info.get('agee',36)

print(age)

#没有值的话就给它赋值一个默认值36

------------------------------------------------------修改info['ac'tress]

info={'name':'章子怡','actress':'big star'}

print(type(info))

age=info.get('agee',36)

print(age)

info['actress']='international star'

print(info)

------------------------------------------------------------------------------

info={'name':'章子怡','actress':'big star'}

print(type(info))

age=info.get('agee',36)

print(age)

info['actress']='international star'

print(info)

info['gender']='female'

print(info)

del info['gender']

print(info)

print(len(info))

print(info.keys())

print(info.values())

print(info.items())#获取字典的元素视图，该视图会实时地反映出字典中键值对的变化

info.clear()

print(info)

--------------------------enumerate-----------------枚举