fumble
发表于 2025-3-21 19:06:05
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青少年
发表于 2025-3-21 21:20:57
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树上结蜜糖
发表于 2025-3-22 04:17:15
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金桌活画面
发表于 2025-3-22 05:18:38
Constants, Variables, and Data Types,In OOP languages, an immutable object is an object whose state can’t be modified. Swift calls these constants. Once a constant object has been created and an initial value assigned, it can’t be changed. In contrast, an object whose value can be changed is a mutable object. Swift calls these variables.
博爱家
发表于 2025-3-22 11:08:52
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Airtight
发表于 2025-3-22 14:15:53
Flow Control,In programming, Control Flow referes to the order of instructions (statements) are executed. Swift provides the standard set of conditional constructs. These include for, while, if and switch, plus break and continue to transfer the control to another location in the code.
聚集
发表于 2025-3-22 17:10:33
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ONYM
发表于 2025-3-23 00:19:00
Classes and Structures,In Chapter 4 you learned about object-oriented programming (OOP), and how an object can be represented in Swift as a class, a structure, or an enumeration type.
Comprise
发表于 2025-3-23 03:29:24
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GUILT
发表于 2025-3-23 05:35:12
Inheritance,When you write an object-oriented program, the classes and objects you create have relationships with one another. They work together to make your program do its thing.