swift语言的特点,相对于oc
1、泛型、泛型约束与扩展;
2、函数式编程;
3、值类型、引用类型;
4、枚举、关联值、元组等其他
上述为swift最大的特点
Another safety feature is that by default Swift objects can never be nil
, and trying to make or use a nil
object will results in a compile-time error.
Swift is a type-safe language, which means the language helps you to be clear about the types of values your code can work with. If part of your code requires a String
, type safety prevents you from passing it an Int
by mistake. Likewise, type safety prevents you from accidentally passing an optional String
to a piece of code that requires a nonoptional String
. Type safety helps you catch and fix errors as early as possible in the development process.
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