Introduction to Python functions: introduction and examples of zip function

Introduction to Python functions: introduction and examples of zip function

Python is a high-level language that provides many useful functions to help developers write programs quickly . One of these functions is the zip function.

The Zip function is one of the built-in functions in Python. It can accept a set of iterable objects (including lists, tuples, sets and dictionaries, etc.) and return a list of elements in these iterable objects. A tuple of sequential pairs.

The Zip function can be used in a variety of situations, such as:

1. Correspond one-to-one elements of two lists into tuples, and then store these tuples in a new list.

Sample code:

list1 = [1, 2, 3]
list2 = [4, 5, 6]
result = zip(list1, list2)
print(list(result))

Output result:

[(1, 4), (2, 5), (3, 6)]

2. Pass the elements of multiple lists to a function in one-to-one correspondence, and obtain the results returned by the function .

Sample code:

def add(x, y):
    return x + y

list1 = [1, 2, 3]
list2 = [4, 5, 6]
result = map(add, list1, list2)
print(list(result))

Output result:

[5, 7, 9]

3. Assign elements in multiple lists to different variables.

Sample code:

list1 = [1, 2, 3]
list2 = [4, 5, 6]
a, b, c = zip(list1, list2)
print(a, b, c)

Output result:

(1, 4) (2, 5) (3, 6)

It should be noted that the zip function will stop operating when the shortest iterable object is exhausted, so you must ensure that it is passed The objects given to the zip function are of equal length.

In short, the zip function is a very useful function that can be used in many different scenarios. Proficient mastery of the zip function can make Python coding more efficient and concise.

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