mirror of
https://github.com/unknwon/the-way-to-go_ZH_CN.git
synced 2025-08-11 19:22:37 +08:00
39 lines
761 B
Go
Executable File
39 lines
761 B
Go
Executable File
// leaving out the length 4 in [4] uses slice instead of an array
|
|
// which is generally better for performance
|
|
package main
|
|
|
|
import "fmt"
|
|
|
|
func main() {
|
|
// var a = [4]float32 {1.0,2.0,3.0,4.0}
|
|
var a = []float32{1.0, 2.0, 3.0, 4.0}
|
|
fmt.Printf("The sum of the array is: %f\n", Sum(a))
|
|
var b = []int{1, 2, 3, 4, 5}
|
|
sum, average := SumAndAverage(b)
|
|
fmt.Printf("The sum of the array is: %d, and the average is: %f", sum, average)
|
|
}
|
|
|
|
/*
|
|
func Sum(a [4]float32) (sum float32) {
|
|
for _, item := range a {
|
|
sum += item
|
|
}
|
|
return
|
|
}
|
|
*/
|
|
|
|
func Sum(a []float32) (sum float32) {
|
|
for _, item := range a {
|
|
sum += item
|
|
}
|
|
return
|
|
}
|
|
|
|
func SumAndAverage(a []int) (int, float32) {
|
|
sum := 0
|
|
for _, item := range a {
|
|
sum += item
|
|
}
|
|
return sum, float32(sum / len(a))
|
|
}
|