Question

谁能用C语言棒棒我，

Answer 1

#include<iostream>
#include<cstdio>
#include<cmath>
#include<vector>
#include<list>
#include<cstring>
#include<map>
#include<set>
#include<algorithm>
#include<queue>
using namespace std;
int n;
struct birth
{
int year,month,day;
};

struct node
{
int num,old,math,english,computer;
double ave;
char name[20],sex[10];
struct birth days;
}students[100];

double aver(int math,int english,int C)
{
return (math+english+C)/3.0;
}

void save(int n)
{
FILE *fp;
if ((fp=fopen("wade","wb"))==NULL)
{
printf("cannot open this file\n");
exit(0);
}
for (int i=0;i<n;i++)
if(fwrite(&students[i], sizeof(struct node),1,fp)!=1)
printf("file write error\n");
fclose(fp);
}
void input()
{
for (int i=0;i<n;i++)
{
printf("请输入该同学的学号\n");
cin>>students[i].num;
printf("请输入该同学的性别\n");
cin>>students[i].sex;
printf("请输入该同学的年龄\n");
cin>>students[i].old;
printf("请输入该同学的出生年\n");
cin>>students[i].days.year;
printf("请输入该同学的出生月\n");
cin>>students[i].days.month;
printf("请输入该同学的出生日\n");
cin>>students[i].days.day;
printf("请输入该同学的数学成绩\n");
cin>>students[i].math;
printf("请输入该同学的英语成绩\n");
cin>>students[i].english;
printf("请输入该同学的C语言成绩\n");
cin>>students[i].computer;
students[i].ave=aver(students[i].math,students[i].english,students[i].computer);
}
save(n);
}
void ouput()
{
FILE *fp;
fopen(fp);
for (int i=0;i<n;i++)
{
printf("%s同学的信息如下:\n",students[i].name);
printf("学号:%d\n性别:%s\n年龄:%d\n出生年:%d\n出生月:%d\n出生日:%d\n数学成绩:%d\n英语成绩:%d\nC语言成绩:%d\n平均成绩:%.2lf\n\n",students[i].num,students[i].sex,students[i].old,students[i].days.year,students[i].days.month,students[i].days.day,students[i].math,students[i].english,students[i].computer,students[i].ave);
}
}
int menu()
{
char ch;
int cnt;
printf("请按照以下提示输入\n");
printf("1. 学生信息输入\n");
printf("2. 学生信息输出\n");
printf("3. 结束\n");
printf("Please input 1-3:\n");
do
{
ch=getchar();
cnt=ch-'0';
}while(cnt<=0 || cnt>3);
return cnt;
}
int main()
{
printf("请输入班级总人数:\n");
scanf("%d",&n);
for(int i=0;i<300;i++)
{
switch(menu())
{
case 1:
input();break;
case 2:
ouput();break;
case 3:
printf("goodbye\n");
exit(0);
}
}
return 0;
}
给你一个轮廓，你稍微修改一下中文部分就可以了，另外排序你要自己添加一下，自己稍微动动手，这些大作业大家都不可能一样但却有共通之处