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This article mainly introduces python how to achieve local exchange variables, the article is very detailed, has a certain reference value, interested friends must read it!

Exchange variables on the spot

In many other programming languages, the values of two or more variables can only be exchanged by defining additional temp (temporary) variables.

Suppose you want to exchange x and y:

Temp = x x = y y = temp

In Python, there is a simple one-line construct to exchange variables, similar to the concept of assigning values to multiple variables in a row.

The following code is the same as above, but does not use any temporary variables:

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