السؤال 98

For items = ["a", "b", "c"], which statement describes items[-1]?

It selects the first item, 'a'.
It raises IndexError because negative indexes are invalid.
It selects the final item, 'c'.الإجابة الصحيحة
It returns None.

الشرح

A negative index counts backward from the end, and -1 designates the final list item, c. It is valid for a nonempty sequence and does not wrap around to the first item.

الشرح

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