Tuples are a composite data type and are used to store collections of items.
元组是复合的数据类型，用于存储数据项的集合。
The same considerations apply to each member of a composite data type, such as a structure or an array.
这些注意事项也同样适用于复合数据类型的每个成员，如结构或数组。
CM Composite data type. A field that is a combination of other meaningful data fields. Each portion is called a component.
合成资料型态。一个栏位由不同的有意义资料栏位所组成，其中每一部分称之为一个元素。
Thus we see that a structured data type can have operations defined on its composite values, as well as on the component elements of those values.
由此我们知道数据结构可以有定义在其构成值之上的操作。也有定义在这些值的组成元素上的操作。
Thus we see that a structured data type can have operations defined on its composite values, as well as on the component elements of those values.
由此我们知道数据结构可以有定义在其构成值之上的操作。也有定义在这些值的组成元素上的操作。
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