You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
35 lines
750 B
Go
35 lines
750 B
Go
// In Go, _variables_ are explicitly declared and used by
|
|
// the compiler to e.g. check type-correctness of function
|
|
// calls.
|
|
|
|
package main
|
|
|
|
import "fmt"
|
|
|
|
func main() {
|
|
|
|
// `var` declares 1 or more variables.
|
|
var a = "initial"
|
|
fmt.Println(a)
|
|
|
|
// You can declare multiple variables at once.
|
|
var b, c int = 1, 2
|
|
fmt.Println(b, c)
|
|
|
|
// Go will infer the type of initialized variables.
|
|
var d = true
|
|
fmt.Println(d)
|
|
|
|
// Variables declared without a corresponding
|
|
// initialization are _zero-valued_. For example, the
|
|
// zero value for an `int` is `0`.
|
|
var e int
|
|
fmt.Println(e)
|
|
|
|
// The `:=` syntax is shorthand for declaring and
|
|
// initializing a variable, e.g. for
|
|
// `var f string = "apple"` in this case.
|
|
f := "apple"
|
|
fmt.Println(f)
|
|
}
|