In computer science, afor-loop(or simplyfor loop) is a control flow statement for specifying iteration, which allows code to be executed repeatedly。(作用:介绍了for循环是什么?) A for-loop has two parts: a header specifying the iteration, and a body which is executed once per iteration. (...
thistuple = ("apple", "banana", "cherry") for i in range(len(thistuple)): print(thistuple[i]) Try it Yourself » Using a While LoopYou can loop through the tuple items by using a while loop.Use the len() function to determine the length of the tuple, then start at 0 and ...
In this article, we’ll explore the Python for loop in detail and learn to iterate over different sequences including lists, tuples, and more. Additionally, we’ll learn to control the flow of the loop using thebreak and continue statements. When to use for Loop Anytime you have need to...
forvariableiniterable:# loop code 元组的基本操作 例 代码语言:javascript 代码运行次数:0 运行 AI代码解释 # Initializing my_tuple=(1,2,"Hello",3.14)another_tuple=10,20,30print(another_tuple)# Output:(10,20,30)# Get elements my_tuple=(1,2,3,4,5)print(my_tuple[0])# Output:1print(my...
深入理解python中的for循环 Python中的for语句,没你想的那么简单~ for语句实际上解决的是循环问题。在很多的高级语言中都有for循环(for loop)。for语句是编程语言中针对可迭代对象的语句,它的主要作用是允许代码被重复执行。看一段来自维基百科的介绍: Incomputer science, afor-loop(or simplyfor loop) is a...
list是一个有序的列表。我们可以根据顺序来for循环遍历整个list。使用string和tuple的时候也可以这样子for loop 遍历。这是非常符合代码直觉的,因为遍历的都是有序的对象。然而我们使用字典的时候,无序的对象我们依然能够进行for loop遍历。 因为for loop要求对象是一个可迭代的对象(iterable)。
滿多東西都可以作為「可迭代物」(iterable),以函式(Function)來說的話,常見的包括range()、enumerate()、zip()、reversed()、sorted();以資料型態來說的話,包括字串(string)、串列(list)、元組(tuple)、字典(dictionary)。 這個段落,將為你說明for陳述句如何與這些「可迭代物」(iterable)一同運作。
for语句实际上解决的是循环问题。在很多的高级语言中都有for循环(for loop)。 for语句是编程语言中针对可迭代对象的语句,它的主要作用是允许代码被重复执行。看一段来自维基百科的介绍: Incomputer science, afor-loop(or simplyfor loop) is acontrol flowstatementfor specifyingiteration, which allows code to ...
When writing Python code, you’ll often need to iterate over built-in data types such as lists, tuples, strings, numeric ranges, dictionaries, and sets. All of them support iteration, and you can feed them into a for loop. In the next sections, you’ll learn how to tackle this requir...
In Python, we use a for loop to iterate over various sequences, such as lists, tuples, sets, strings, or dictionaries. The for loop allows you to iterate through each element of a sequence and perform certain operations on it. In this tutorial, we will e