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This article mainly explains "what a line of Python code can do". The explanation in this article is simple and clear, easy to learn and understand. Please follow the ideas of Xiaobian and go deep into it slowly to study and learn "what a line of Python code can do" together!

First you need to understand Python Zen, a line of code outputs "The Zen of Python":

python -c "import this" """ The Zen of Python, by Tim Peters Beautiful is better than ugly. Explicit is better than implicit. Simple is better than complex. Complex is better than complicated. Flat is better than nested. Sparse is better than dense. Readability counts. Special cases aren't special enough to break the rules. Although practicality beats purity. Errors should never pass silently. Unless explicitly silenced. In the face of ambiguity, refuse the temptation to guess. There should be one-- and preferably only one --obvious way to do it. Although that way may not be obvious at first unless you're Dutch. Now is better than never. Although never is often better than *right* now. If the implementation is hard to explain, it's a bad idea. If the implementation is easy to explain, it may be a good idea. Namespaces are one honking great idea -- let's do more of those! """

From "The Zen of Python", we can also see that Python advocates Beautiful, Explicit, Simple and other principles. Of course, what fun functions Python can achieve in the next line may violate the Explicit principle.

(1)One line of code starts a Web service

python -m SimpleHTTPServer 8080 # python2 python3 -m http.server 8080 # python3

(2)One line of code to achieve variable value interchange

a, b = 1, 2; a, b = b, a

(3)One line of code solves the FizzBuzz problem:

FizzBuzz Problem: Print numbers 1 to 100, multiples of 3 Print "FizzBuzz", multiples of 5 Print "Buzz", multiples of both 3 and 5 Print "FizzBuzz"

for x in range(1, 101): print("fizz"[x % 3 * 4:]+"buzz"[x % 5 * 4:] or x)

(4)One line of code outputs a heart with the specific character "Love."

print('\n'.join([''.join([('Love'[(x-y) % len('Love')] if ((x*0.05)**2+(y*0.1)**2-1)**3-(x*0.05)**2*(y*0.1)**3 1 and qsort(list(filter(lambda x: x arr[0], arr[1:]))) or arr

(10)One line of code to solve the eight queens problem

[__import__('sys').stdout.write('\n'.join('. ' * i + 'Q' + '. ' * (8-i-1) for i in vec) + "\n========\n") for vec in __import__('itertools').permutations(range(8)) if 8 == len(set(vec[i]+i for i in range(8))) == len(set(vec[i]-i for i in range(8)))]

(11)One line of code implements the flatten function of arrays: convert multidimensional arrays to one-dimensional arrays

flatten = lambda x: [y for l in x for y in flatten(l)] if isinstance(x, list) else [x]

(12)A line of code to achieve list, a bit similar to the function of the anti-function

array = lambda x: [x[i:i+3] for i in range(0, len(x), 3)]

(13)One line of code to solve the sum of the digits of 2 to the power of 1000

print(sum(map(int, str(2**1000)))) Thank you for reading, the above is the content of "what a line of Python code can do", after learning this article, I believe that everyone has a deeper understanding of what a line of Python code can do. The specific use situation still needs to be verified by practice. Here is, Xiaobian will push more articles related to knowledge points for everyone, welcome to pay attention!

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