keys=["name","age","city"]values=["John",25,"New York"]person=dict(zip(keys,values))print(person)#输出：{"name": "John", "age": 25, "city": "New York"} 此例，使用zip()函数将两个列表的元素一一对应起来，然后使用dict()构造函数将其转换为字典。使
Note: You can use .values() to get a view of the values only and .keys() to get one with only the keys.Crucially, you can use the sorted() function with dictionary views. You call the .items() method and use the result as an argument to the sorted() function. Using .items() ...
Python 字典(Dictionary) keys() 函数以列表返回一个字典所有的键。语法keys()方法语法:dict.keys()参数NA。 返回值返回一个字典所有的键。实例以下实例展示了 keys()函数的使用方法:实例 #!/usr/bin/python tinydict = {'Name': 'Zara', 'Age': 7} print "Value : %s" % tinydict.keys()以上实例...
在Python中,字典(Dictionary)是一种无序的、可变的数据类型,用于存储键值对。字典中的键(key)是唯一的,而值(value)则可以重复。当需要遍历字典的键时,我们可以使用多种方法来实现。 本文将介绍在Python中遍历字典的keys的几种常见方法,并提供相应的代码示例。 方法一:使用for循环遍历 最常用的方法是使用for循环结...
keys() # dict_keys(['book', 'price']) dct.values() # dict_values(['learn python', 99]) dct.items() # dict_items([('book', 'learn python'), ('price', 99)]) 以上操作的返回值,不是前面学过的列表,在 Python 中称之为视图对象( View Object )。 视图对象的特点,字典改变,视图也...
data={"name":"lisi","age":20,"work":"测试开发工程师"}#获取所有的keyforkeyindata.keys():print(key)#获取所有的valueforvalueindata.values():print(value) #获取key对应的具体的valuedata={"name":"lisi","age":20,"work":"测试开发工程师"}#获取名字print(data.get("name"))print(data["nam...
request = raw_input('Phone number (p) or address (a)?')#Use the correct key:key = request#In case the request is neither 'p' nor 'a'ifrequest =='p': key ='phone'ifrequest =='a': key ='addr'#Use get to provide default values:person =people.get(name, {})...
>>>dictionary=dict(zip(keys,values)) >>>dictionary {'a': 1, 'b': 2, 'c': 3, 'd': 4} 1. 2. 3. 4. 5. ③以给定内容为键,创建值为空的字典 >>>adict=dict.fromkeys(['apple','orange']) >>>adict {'apple': None, 'orange': None}#以列表作为字典的键时报错 ...
Dictionaries are written with curly brackets, and have keys and values: ExampleGet your own Python Server Create and print a dictionary: thisdict ={ "brand":"Ford", "model":"Mustang", "year":1964 } print(thisdict) Try it Yourself » ...
Write a Python program to extract values from a given dictionary and create a list of lists from those values. Visual Presentation: Sample Solution: Python Code: # Define a function 'test' that takes a list of dictionaries 'dictt' and a tuple of 'keys' as arguments.deftest(dictt,keys)...