Go 传递数组给函数

package main



import "fmt"



func main() {

   /* an int array with 5 elements */

   var  balance = []int {1000, 2, 3, 17, 50}

   var avg float32



   /* pass array as an argument */

   avg = getAverage( balance, 5 ) ;



   /* output the returned value */

   fmt.Printf( "Average value is: %f ", avg );

}

func getAverage(arr []int, size int) float32 {

   var i,sum int

   var avg float32  



   for i = 0; i < size;i++ {

      sum += arr[i]

   }



   avg = float32(sum / size)

   return avg;

}