Swift 2.0 Study Notes (day 11)-Data type What's the matter?

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When we learn languages, we learn the types of data in this language, what are the types of data in Swift? Integer, float, Boolean, character, string these types are certain, where collections, enumerations, structs, and classes are also data types in Swift. Tuples are unique in swift.
Other types we may have known or heard about. Tuples are there in swift, what is it?
It is a data structure, which is widely used in mathematics. In computer science, tuples are a basic concept in a relational database, one record in a tuple table, and each column is a field. So in the two-dimensional table, tuples are also called records.
> now uses swift syntax to represent student tuples:
The first form of a notation
("1001", "Zhang San", 30, 90)
The second type of notation
Style= "MARGIN-LEFT:21PT;" > (ID: "1001", Name: "Zhang San", English_score:30, chinese_score:90)

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Swift 2.0 Study Notes (day 11)-Data type What's the matter?