# 创建一个示例字典my_dict={'name':'Alice','age':30,'gender':'female','city':'New York','email':'alice@example.com'}# 打印字典的前3行count=0forkey,valueinmy_dict.items():ifcount<3:print(f'{key}:{value}')count+=1else:break 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. ...
Key: last Value: fermi Key: first Value: enrico Key: username Value: efermi 注意,即便遍历字典时,键-值对的返回顺序也与存储顺序不同。Python不关心键-值对的存储顺序,而只跟踪键和值之间的关联关系。 在6.2.6节的示例favorite_languages.py中,字典存储的是不同人的同一种信息;对于类似这样的字典,遍历...
Print specific key-value pairs of a dictionary in Python Formatting the key-value pairs when printing them Print the first N key-value pairs of a dictionary Print the last N key-value pairs of a dictionary Print only a part of a dictionary using slicing Print only a part of a dictionary...
for key, value in my_dict.items(): print(key, value) ``` ### 字典方法 Python 字典提供了一些常用的方法,如keys()、values()、items()等,用来获取字典中的所有键、所有值、所有键值对等,例如: ```python my_dict = {"name": "Alice", "age": 30, "city": "New York"} print(my_dict.k...
def to_dictionary(keys,values):returndict(zip(keys,values))keys= ["a","b","c"]values= [2,3,4]print(to_dictionary(keys,values))#{'a': 2, 'c': 4, 'b': 3} 21、使用枚举 我们常用 For 循环来遍历某个列表,同样我们也能枚举列表的索引与值。
for key,value in dictionary_name.items(): print(key, value) Python program to create a dictionary with integer keys, and print the keys, values & key-value pairs # Python program to create a dictionary# with integer keys# creating the dictionarydict_a={1:"India",2:"USA...
Print specific key-value pairs of a dictionary in Python I wrotea bookin which I share everything I know about how to become a better, more efficient programmer. You can use the search field on myHome Pageto filter through all of my articles. ...
在Python中,可以使用print语句来打印字典中的特定项。要仅返回换行符,可以按照以下步骤操作: 创建一个字典,包含需要打印的项。例如:my_dict = {'item1': 'value1', 'item2': 'value2', 'item3': 'value3'} 使用print语句和字典的键来打印特定项。在这种情况下,我们想要打印换行符,可以使用\n来表...
Python example to print the key value of a dictionary. stocks = {'IBM':146.48,'MSFT':44.11,'CSCO':25.54}print(stocks)fork, vinstocks.items():print(k, v)forkinstocks:print(k, stocks[k]) Output {'IBM': 146.48,'MSFT': 44.11,'CSCO': 25.54} ...
def print_config(dic, namespace="", first=False): if first: print("CONFIG USED:") print("="*80) dictionary = dic._asdict() for (key, item) in dictionary.items(): if first: new_namespace = key else: new_namespace = "{}.{}".format(namespace, key) if "_asdict" in dir(...