如何在 Python 中優雅地將數字限制在某個範圍內？

Elegant Numeric Clamping in Python: A Concise Approach

Encountering the need to constrain a number within a specified range is a common scenario in programming. In Python, an elegant solution for this task is the max() and min() combination:

<code class="python">clamped_value = max(min_value, value, max_value)</code>

Here, clamped_value is the number to be restricted, min_value represents the lower bound, and max_value denotes the upper bound. This expression effectively sets the value of clamped_value to the maximum value between min_value and the minimum value between value and max_value.

Consider the following example:

<code class="python">new_index = index + offset
clamped_index = max(0, min(new_index, len(mylist) - 1))</code>

This code snippet clamps the new_index within the bounds of the mylist by ensuring it remains between 0 and len(mylist) - 1.

The simplicity and ease of understanding make this method a preferred choice. It eliminates the need for extensive conditional statements, resulting in a more concise and readable code.

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