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So far we have seen stack diagrams, which show the state of a program, and object diagrams, which show the attributes of an object and their values. T... 阅读全文
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The language feature most often associated with object-oriented programming is inheritance. Inheritance is the ability to define a new class that is a... 阅读全文
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To deal cards, we would like a method that removes a card from the deck and returns it. The list method pop provides a convenient way to do that. Sinc... 阅读全文
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Now that we have Card objects, the next step is to define a class to represent decks. Since a deck is made up cards, a natural choice is for each Deck... 阅读全文
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For built-in types, there are conditional operators (, ==, etc.) that compare values and determine when one is greater than, less than, or equal to an... 阅读全文