Dictionaries can store objects of any type, consisting of keys and values (Key-value). A dictionary is also called an associative array or hash table.
Dict = {'A': 001,'B':'002','C': [1, 2, 3]}dict['A'] = 007#Modifying a dictionary elementdict['D'] = (5, 6, 7)#Add dictionary elementsdeldict['A']#Delete a dictionary elementdelDict#Delete Dictionarydict.clear ()#clears all elements of the dictionaryLen (dict)#number of dictionary elementsStr (dict)#Convert Stringlist (dict)#Dictionary key with list descriptionDict.keys ()#dictionary key, return type is Listdict.values ()#dictionary value, return type is ListDict.items ()#All (key, value) tuples, return type as List
Dict.update (DICT2)#update the key value of dictionary 2 to 1Dict.has_key ('A')#Determines if the dictionary contains the key, and returns True/false
Operation of dictionary dict in Python