INFO1110 Week 4 每周题库 · Data Structures 列表、切片、字典与元组
Week 4 精选练习：列表、切片、字典、元组与可变性。Curated practice on lists, slicing, dictionaries, tuples and mutability.
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W04 Slicing 切片
What is the value of x after the following code is run?s = 'Hello World' x = s[1:8:2]
W04 Slicing 切片
What is the value of x after the following code is run?s = 'Programming' x = s[-4:][::-1]
W04 Slicing 切片
After the assignment s = 'abcdef', what does s[:-2:-1] evaluate to?
W04 Dictionaries 字典
Which of the following is a valid Python statement when x = {1: 'one', 2: 'two'}?
W04 Tuples 元组
What does the expression (1, 2) + (3,) * 2 evaluate to?
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