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This article mainly introduces how python uses ternary operators to carry out conditional assignment. It has certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article. Let Xiaobian take you to understand it together.

Conditional assignment using ternary operators

The ternary operator is a shortcut to if-else statements, i.e. conditional operators:

[return value if expression is true] if [expression] else [return value if expression is false]

Here are a few examples you can use to make your code compact and concise. The following statement says,"If y is 9, assign x 10, otherwise assign x 20." We can also extend the chain of operations if necessary.

x = 10 if (y == 9) else 20

Similarly, we can do this with classes:

x = (classA if y == 1 else classB)(param1, param2)

In the example above classA and classB are two classes, one of which has a constructor called.

Here is another example of multiple conditional expressions chained together to calculate a minimum:

def small(a,b,c):returnaifa

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