for_loop_zip.py #!/usr/bin/python words1 = ["cup", "bottle", "table", "rock", "apple"] words2 = ["trousers", "nail", "head", "water", "pen"] for w1, w2 in zip(words1, words2): print(w1, w2) In the example, we iterate over two lists in oneforloop. $ ./for_loo...
Aloopis a sequence of instructions that is continually repeated until a certain condition is reached. For instance, we have a collection of items and we create a loop to go through all elements of the collection. In Python, we can loop over list elements with for and while statements, and...
Iterate Dictionary using for loop What is for loop in Python In Python, the for loop is used to iterate over a sequence such as a list, string, tuple, other iterable objects such as range. With the help of for loop, we can iterate over each item present in the sequence and executes...
foriinrange(len(thislist)): print(thislist[i]) Try it Yourself » The iterable created in the example above is[0, 1, 2]. Using a While Loop You can loop through the list items by using awhileloop. Use thelen()function to determine the length of the list, then start at 0 and...
choices = ['pizza','pasta','salad','nachos']print'Your choices are:'forindex, iteminenumerate(choices):printindex+1, item 运行结果如下: Your choices are:1pizza2pasta3salad4nachos None 2.zip:根据最小的列表,pairs它们 It's also common to need to iterate over two lists at once. This ...
Using zip() method, you can iterate through two lists parallel as shown above. The loop runs until the shorter list stops (unless other conditions are passed). Example 2: Using itertools (Python 2+) import itertools list_1 = [1, 2, 3, 4] list_2 = ['a', 'b', 'c'] # loop ...
In this tutorial, you'll learn all about the Python for loop. You'll learn how to use this loop to iterate over built-in data types, such as lists, tuples, strings, and dictionaries. You'll also explore some Pythonic looping techniques and much more.
[statement to execute when loop is over] [else statement is completely optional] 1. 2. 3. 4. 5. forloop is frequently used to iterate elements of lists. Considering the above syntax, let's say there is a listmyList: for循环通常用于迭代列表的元素。 考虑到以上语法,假设有一个列表myList...
# We can loop over it. for i in our_iterable: print(i) # Prints one, two, three 我们不能使用下标来访问可迭代对象,但我们可以用iter将它转化成迭代器,使用next关键字来获取下一个元素。也可以将它转化成list类型,变成一个list。 # However we cannot address elements by index. ...
Learn how to loop over multiple Lists in Python with the zip function. Patrick Loeber···May 04, 2022 ·2 min read PythonTips Don't use a for loop like this for multiple Lists in Python: a=[1,2,3]b=["one","two","three"]# ❌ Don'tforiinrange(len(a)):print(a[i],b[...