How python traverses numbers in a range

Editor to share with you how python traverses a range of numbers, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's learn about it!

Traverse a range of numbers

For i in [0,1,2,3,4,5]: print I * * 2for i in range (6): print I * * 2

A better way

For i in xrange (6): print I * 2

Xrange returns an iterator to traverse a range one value at a time. This approach is more memory-efficient than range. Xrange has been renamed range in Python 3.

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