package main

import "fmt"

func main() {
	var a [5]int
	//普通for循环
	for i := 0; i < len(a); i++ {
		fmt.Printf("输入第%d位学生的成绩：", i+1)
		_, err := fmt.Scanln(&a[i])
		if err != nil {
			return
		}
	}
	//for range循环
	for a, b := range a {
		fmt.Printf("第%d个学生成绩为%d\n", a, b)
	}
	Grades := 1
	for _, b := range a {
		Grades = Grades + b
	}
	fmt.Printf("平均成绩为%d", Grades/len(a))
}