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 i
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. ...
Iterating over Lines of Two Files To iterate over lines of two different files, we can open both files simultaneously and read lines of each file inside the same for loop. Here is an example: filename1="file1.txt"filename2="file2.txt"withopen(filename1,"r")asfile1,open(filename2,...
In Python, theforloop is used to iterate over a sequence such as alist, string,tuple, other iterable objects such asrange. With the help offorloop, we can iterate over each item present in the sequence and executes the same set of operations for each item. Using aforloops in Python we...
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 ...
You can loop through the list items by using a for loop:ExampleGet your own Python Server Print all items in the list, one by one: thislist = ["apple", "banana", "cherry"] for x in thislist: print(x) Try it Yourself » ...
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.
Returning to the swimmers example, the first thing you need to do is create a for loop that iterates over the data in the events tuple grouped by stroke: Python for stroke, evts in sort_and_group(events, key=lambda evt: evt.stroke): Next, you need to group the evts iterator by ...
[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...