ideaKotinError
代码说明:
In Kotlin, everything is an object in the sense that we can call member functions and properties on any variable. Some of the types can have a special internal representation - for example, numbers, characters and booleans can be represented as primitive values at runtime - but to the user they look like ordinary classes. In this section we describe the basic types used in Kotlin: numbers, characters, booleans, arrays, and strings.
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