C++ 编写一个关于多个学生某门课程总分和平均分的程序

class Score

{

private:

string name

double score

static double TotalScore

static double AverageScore

static int num //计算平均分需要

public:

Score(string n="", double s=0):name(n), score(s){}

void Set(string n, double s){name=nscore=s} //定义数组对象时，需要对每个对象重新赋值

static void Output(){cout <<"TotalScore = " <<TotalScore <<", AverageScore = " <<AverageScore <<endl}

friend void ComputeTotalScore(const Score&a)

}

double Score::TotalScore = 0

double Score::AverageScore = 0

int Score::num = 0

void ComputeTotalScore(const Score&a)

{

Score::TotalScore += a.score

Score::num++

Score::AverageScore = Score::TotalScore/Score::num

}

void main()

{

Score arr[10]

string name = ""

double score = 0

for(int i=0i<10i++)

{

cout <<"Input " <<i+1 <<" Student Name and Score: "

cin >>name >>score

arr[i].Set(name, score)

ComputeTotalScore(arr[i])

}

arr[9].Output()

}

//按你要求来的 不过只输入了3组数，你可以自己改

#includestdio.h

#includestring.h

#define max 100

typedef struct

{

char name[max]// 姓名

int num//学号

int eng//英语成绩

int pro//程序设计成绩

int maths//数学成绩

}student

void input(student s[],int n)//输入以及求总分

{

int sum=0

for(int i=0ini++)

{

printf("输入第%d个学生的姓名：\n",i+1)gets(s[i].name)

printf("输入第%d个学生的学号：\n",i+1)scanf("%d",s[i].num)

printf("输入第%d个学生的英语成绩：\n",i+1)scanf("%d",s[i].eng)

printf("输入第%d个学生的程序设计成绩：\n",i+1)scanf("%d",s[i].pro)

printf("输入第%d个学生的数学成绩：\n",i+1)scanf("%d",s[i].maths)

sum=s[i].eng+s[i].pro+s[i].maths

printf("总分为：%d\n",sum)

fflush(stdin)

}

}

void sumscore(student s[],int n)//单科成绩总和

{

int sum_eng=0,sum_pro=0,sum_maths=0

for(int i=0ini++)

{

sum_eng+=s[i].eng

sum_pro+=s[i].pro

sum_maths+=s[i].maths

}

printf("英语总成绩为：%d\n",sum_eng)

printf("程序设计总成绩为：%d\n",sum_pro)

printf("数学总成绩为：%d\n",sum_maths)

}

void searchst(student s[],int n)//查找学生

{

char e[max]int number

printf("输入要查询的姓名：\n")gets(e)

printf("输入要查询的学号：\n")scanf("%d",number)

for(int i=0ini++)

if(!strcmp(s[i].name,e)number==s[i].num)

{

printf("英语成绩:%d\n程序设计成绩:%d\n数学成绩:%d\n",s[i].eng,s[i].pro,s[i].maths)

printf("总成绩为：%d\n",s[i].eng+s[i].pro+s[i].maths)

return

}

printf("查无此人！")

}

void main()

{

student s[3]int n=3//这里只用了3个测试，30个太夸张了,可以改成30组数....

input(s,n)

printf("\n")

sumscore(s,n)

printf("\n")

searchst(s,n)

printf("\n")

}

参考资料：

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