Kotlin Chinese Tutorial-function definition, variable declaration

As you can see, the function definition is

< access Control > < function name > < parameter list > <: return type (no write is no return type) > {

function body

}

Single-statement functions can be abbreviated, such as the Add function and the ADD1 function are the same effect

Variable definition

var < identifiers >: < type > = < initialization value >

Constant definition

Val < identifiers >: < types > = < initialization values >

Constants and variables can have no initialization values, but must be initialized before referencing them.

The compiler supports automatic type judgments, which can be declared without specifying a type, which is judged by the compiler

Operation Result:

Kotlin Chinese Tutorial-function definition, variable declaration