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DictionariesA dictionary is like a list, but more general. In a list, the indices have to be integers; in a dictionary they can be (almost) any type.Y... 阅读全文
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10.1 A list is a sequenceLike a string, a list is a sequence of values. In a string, the values are characters; in a list, they can be any type. The v... 阅读全文
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3.1 Function callsIn the context of programming, a function is a named sequence of statements that performsa computation. When you define a function, ... 阅读全文
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8.1 A string is a sequenceA string is a sequence of characters. You can access the characters one at a time with thebracket operator:>>> fruit = 'bana... 阅读全文