package main

import "fmt"

/*
	二维数组
		方式一:var arr [2][6]int{{},{}}
		方式二:arr :=[...][6]int{{},{}}
*/
func main() {
	//定义二维数组
	var arr [4][6]int
	arr[1][2]=1
	arr[2][1]=2
	arr[2][3]=3
	for _,v:=range arr{
		for _,j:=range v{
			fmt.Print(j," ")
		}
		fmt.Println()
	}
	scores()
}
func scores(){
	var scores [3][5]float64
	for i,v:=range scores{
		for ii,_:=range v{
			fmt.Printf("请输入第%v班的第%v个学生的成绩:\n",i+1,ii+1)
			fmt.Scanln(&scores[i][ii])
		}
	}
	var eachClassAvg float64
	for i,v:=range scores{
		var studentScores float64
		for _,vv:=range v{
			studentScores +=vv
		}
		eachClassAvg += studentScores
		fmt.Printf("班级%d平均分是:%.2f,班级%d的总分是:%v\n",i+1,studentScores/float64(len(v)),i+1,studentScores)
	}
	fmt.Printf("全部班级的:总分%.2f 平均分是%.2f",eachClassAvg,eachClassAvg/15.0)
	//fmt.Println(scores)
}