Python---dict

'''help---dict
1. key-value
2. key is not repeated, later key value will cover old key value
'''
dict1={'name':'xfei','age':20, 'favorite':['swimming','singing','film']}
print(dict1)
print(dict1['name'])
dict1['age']=28
print(dict1)
print(len(dict1))
print('age' in dict1)
print(dict1['favorite'])