58 chars. ref #27

This commit is contained in:
Mark McGranaghan 2012-11-05 11:02:32 -08:00
parent ee7e950346
commit 363613d951

View File

@ -11,19 +11,22 @@ const s string = "constant"
func main() {
fmt.Println(s)
// A `const` statement can appear anywhere a `var` statement can.
// A `const` statement can appear anywhere a `var`
// statement can.
const n = 500000000
// Constant expressions perform arithmetic with arbitrary precision.
// Constant expressions perform arithmetic with
// arbitrary precision.
const d = 3e20 / n
// A numeric constant has no type until it's given one, such as by
// an explicit cast.
// A numeric constant has no type until it's given
// one, such as by an explicit cast.
fmt.Println(int64(d))
// A number can also be given a type by using it in a context that
// requires one, such as a variable assignment or function call.
// The type it gets depends on its value.
// A number can also be given a type by using it in a
// context that requires one, such as a variable
// assignment or function call. The type it gets
// depends on its value.
fmt.Println(n) // int
fmt.Println(d) // float64
}