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Ejemplo 1: imprimir key de diccionario python
for key, value in mydic.items():print(key, value)
Ejemplo 2: diccionario de impresión en Python
mydict ='score1':41,'score2':23
mydict['score3']=45# key value pairsfor i in mydict:print(i,mydict[i])
Ejemplo 3: diccionario de impresión de Python línea por línea
# Iterate over key/value pairs in dict and print themfor key, value in student_score.items():print(key,' : ', value)
Ejemplo 4: diccionario de Python
#Creating dictionaries
dict1 ='color':'blue','shape':'square','volume':40
dict2 ='color':'red','edges':4,'perimeter':15#Creating new pairs and updating old ones
dict1['area']=25#'color': 'blue', 'shape': 'square', 'volume': 40, 'area': 25
dict2['perimeter']=20#'color': 'red', 'edges': 4, 'perimeter': 20#Accessing values through keysprint(dict1['shape'])#You can also use get, which doesn't cause an exception when the key is not found
dict1.get('false_key')#returns None
dict1.get('false_key',"key not found")#returns the custom message that you wrote #Deleting pairs
dict1.pop('volume')#Merging two dictionaries
dict1.update(dict2)#if a key exists in both, it takes the value of the second dict
dict1 #'color': 'red', 'shape': 'square', 'area': 25, 'edges': 4, 'perimeter': 20#Getting only the values, keys or both (can be used in loops)
dict1.values()#dict_values(['red', 'square', 25, 4, 20])
dict1.keys()#dict_keys(['color', 'shape', 'area', 'edges', 'perimeter'])
dict1.items()#dict_items([('color', 'red'), ('shape', 'square'), ('area', 25), ('edges', 4), ('perimeter', 20)])
Ejemplo 5: diccionario en python
# Dictionaries in Python are used to store set of data like Key: Value pair# the syntax of a dictionary in Python is very simple we use inside that# we define Key: Value, to separate multiple values we use','
programming_dictionary ="Bug":"An error in a program that prevents the program from running as expected.","Function":"A piece of code that you can easily call over and over again.","Loop":"The action of doing sommething again and again",# to retrieve the values from a dictionary we use the Key name as an Index# retrieving the Function's definitionprint(programming_dictionary["Function"])# this will print the definition of Function# if you wanna print all the entries in the dictionary you can do that by for loopfor key in programming_dictionary:print(programming_dictionary[key])# prints all entries# adding items to a dictionary# the following code will add another entry to the dictionary called Variable
programming_dictionary["Variable"]="The label to store some sort of data"print(programming_dictionary["Variable"])# editing the values of a key # editing the value of variable
programming_dictionary["Variable"]="Variables are nothing but reserved memory locations to store values. This means that when you create a variableyou reserve some space in memory"# if you learnt something from this please upvote it
Ejemplo 6: diccionario de Python
#title :Dictionary Example#author :Josh Cogburn#date :20191127#github :https://github.com/josh-cogburn#====================================================
thisdict ="brand":"Ford","model":"Mustang","year":1964#Assigning a value
thisdict["year"]=2018
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