package main import "fmt" func main() { /* 数组长度为 5 */ var balance = []int {1000, 2, 3, 17, 50} var avg float32 /* 数组作为参数传递给函数 */ avg = getAverage( balance, 5 ) ; /* 输出返回的平均值 */ fmt.Printf( "平均值为: %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; }