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不同的编程语言在表示值以及变量如何引用这些值方面有着不同的方式。在某些语言中,这仅仅是一种符号机制;而在另一些语言中,这种机制还延伸到对值的生命周期的管理。 当需要表示更复杂的数据结构时,编程语言会引入一种不同类别的值。例如,“容器 ...
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