Go 常量

const identifier [type] = value

const PI = 3.14159

const b string = "abc"

const b = "abc"

package main
import "fmt"
func main() {
   const HEIGHT int = 100
   const WIDTH int = 200
   var area int
   area = HEIGHT * WIDTH
   fmt.Printf("value of area : %d", area)
}

value of area : 20000