Python Basics-Dictionary Chapter

1 #The first part:2 #Create a dictionary3Dict_test = {}#This is an empty dictionary.4Dict1 =dict ()5 #Add a key-value pair6dict1['Name_key'] ='Name_value'7 #Accessing Dictionaries8 Print(dict1['Name_key'])9 #to modify a value in a dictionaryTendict1['Name_key'] ='Jack' One Print(dict1['Name_key']) A #Delete key-value pairs - deldict1['Name_key'] -  the #Part II: -Dict2 = { -     'name':'Jack', -     ' Age': 21, +     } - #traversing key-value pairs +  forName,ageinchDict2.items (): A     Print(name,age) at #traverse all keys (sequential, non-sequential) - #No order -  forKeyinchDict2.keys (): -     Print(Key) - #Order -  forKeyinchSorted (Dict2.keys ()): in     Print(Key) - #Traverse All Values to  forValueinchdict2.values (): +     Print(value) -  the #Part III: * #List Dictionary $People = [{'name':'Jack'},{'name':'son'},{'name':'Father'}]Panax Notoginseng #store list in dictionary -Family = { the     'Father_name':'Jack', +     'Son_name':['Son1,son2,son3'] A } the #Store dictionary in dictionary +User_dict = { -     'User_info':{'name':'Jack',' Age': 21} $}

Python Basics-Dictionary Chapter