keys, values, items: 分别为获取 dictionary 里的所有 key,所有值以及所有的 key-value。 Dictionary and Loop 和list 一样,可以利用 for: dict= {'apple ':1,'banana ':2,'cat':3}forkey, valueindict.items():print(key, value) Notes: items() 获得的是 key-value,是 tuple 数据类型。该数据类型...
#for loop to print the values of the dictionary by using values() method. Employee = {"Name": "John", "Age": 29, "salary":25000,"Company":"GOOGLE"} for x in Employee.values(): print(x) Output: John 29 25000 GOOGLE Example 4 #for loop to print the items of the dictionary...
A dictionary is an ordered collection of items (starting from Python 3.7), therefore it maintains the order of its items. We can iterate through dictionary keys one by one using afor loop. country_capitals = {"United States":"Washington D.C.","Italy":"Rome"}# print dictionary keys one ...
用for loop 来遍历字典: 前面我们讲过了用for循环来处理字符串、列表、文件,同样,for loop 可以用来处理字典。 ''' 实现功能,用for来遍历字典 ''' count = {'Gary':1 , 'Curry':2 , 'Durant':3} #print(count) for key in count: print(key , count[key]) 1. 2. 3. 4. 5. 6. 7. 需要...
capital = ['New Delhi','Islamabad','Kathmandu','Thimphu','Beijing','Dhaka']print(f"FOR-loop result:{str(eg3_for(country, capital))}")print(f"DC result:{str(eg3_dc(country, capital))}") 输出: FOR-loop result: {'India':'New Delhi','Pakistan':'Islamabad','Nepal':'Kathmandu','Bh...
This is the primary way to iterate through a dictionary in Python. You just need to put the dictionary directly into a for loop, and you’re done!If you use this approach along with the [key] operator, then you can access the values of your dictionary while you loop through the keys:...
Python dictionary comprehension Adictionary comprehensionis a syntactic construct which creates a dictionary based on existing dictionary. D = { expression for variable in sequence [if condition] } A dictionary comprehension is placed between two curly brackets; it has three parts: for loop, condition...
Python入门 20:Python中的字典(dictionary)于南阿北 立即播放 打开App,流畅又高清100+个相关视频 更多 2881 1 10:28 App Python入门 13:循环 for loop (1) 6826 4 04:16 App Python入门 17:用Python新建并写入文件 853 2 05:14 App Python入门 18:Python中的元组(tuple) 795 0 07:36 App Python入门...
Sort a Python dictionary by key Code: color_dict = {'red':'#FF0000', 'green':'#008000', 'black':'#000000', 'white':'#FFFFFF'} for key in sorted(color_dict): print("%s: %s" % (key, color_dict[key])) Output: >>>
The “len()” function, user-defined function, and “for” loop are used to count the number of keys in the Python dictionary. The user-defined function is also defined using “for loop” to iterate over the dictionary’s keys and return the total number of dictionaries in Python. The ...