Question

C语言程序设计实验报告

实验题目：
输入一个班10个学生的学号和每个学生考试三门功课（数学、英语、计算机基础）的成绩。编程计算出每个学生的总分和平均分，并按学生成绩优劣排序，最后打印一张按高分到低分名次排序的成绩单。要求：
1)排序用一个函数实现。
2)打印的成绩单表项包括：序号，学号、数学、英语、计算机、总分、平均分。
3)按实验报告电子模板格式填写实验内容。

源程序清单：

(调试好的源程序代码)

主要标识符说明：

(源程序中主要标识符含义说明)

实验结果：

(程序运行结果)

实验环境：

(调试程序所使用的软硬件环境)

Answer 1

代码:

# include <stdio.h>
# include<stdlib.h>

char stu_no[10][10];
int c_math[10],c_en[10],c_computer[10],point[10],average[10];
int i,j,max;
char c;

void input()
{
for(i=0;i<=9;i++) /*输入学生成绩*/
{
printf("请输入学号:");
scanf("%s",&stu_no[i]);
printf("\n请输入数学成绩:");
scanf("%d",&c_math[i]);
printf("\n请输入英语成绩:");
scanf("%d",&c_en[i]);
printf("\n请输入计算机基础成绩:");
scanf("%d",&c_computer[i]);
}
for(i=0;i<=10;i++) /*计算总分跟平均分*/
{
point[i]=c_math[i]+c_en[i]+c_computer[i];
average[i]=point[i]/3;
}

}

void paixu()
{

printf("成绩按从高到低排列为:\n");
printf("\n学号 数学 英语 计算机基础 总分 平均分\n");
for (i=0;i<=10;i++)
{ for(j=1;j<=10;j++)
if (point[i]>point[j])
max=i;
printf("%s,d,%d,%d,%d,%d,%d\n",stu_no[max],c_math[max],c_en[max],c_computer[max],point[max],average[max]);

}
}

void main()
{

input();

paixu();

}

Answer 2

用链表：
#include <stdio.h>
#include <stdlib.h>

#ifndef NULL
#define NULL 0
#endif

#define LEN sizeof(struct student)

struct student
{
long num;
float score;
struct student *next;
};

int n;

struct student *creat(void)
{
struct student *head;
struct student *p1,*p2;
n=0;
p1=p2=(struct student *)malloc(LEN);
scanf("%ld,%f",&p1->num,&p1->score);
head=NULL;
while(p1->num!=0)
{
n=n+1;
if(n==1) head=p1;
else p2->next=p1;
p2=p1;
p1=(struct student *)malloc(LEN);
scanf("%ld,%f",&p1->num,&p1->score);
}
p2->next=NULL;
return(head);
}

void print(struct student *head)
{
struct student *p;
printf("\nNow,These %d records are:\n",n);
p=head;
if(head!=NULL)
do
{
printf("%ld %5.1f\n",p->num,p->score);
p=p->next;
}while(p!=NULL);
}

struct student *del(struct student *head,long num)
{
struct student *p1, *p2;
if(head==NULL){printf("\nlist null!\n");return NULL;}
p1=head;
while(num!=p1->num && p1->next!=NULL)
{p2=p1;p1=p1->next;}
if(num==p1->num)
{
if(p1==head) head=p1->next;
else p2->next=p1->next;
printf("delete:%ld\n",num);
n=n-1;
}
else printf("%ld not been found!\n",num);
return(head);
}

struct student *insert(struct student *head, struct student *stud)
{
struct student *p0,*p1,*p2;
p1=head;
p0=stud;
if(head==NULL)
{head=p0;p0->next=NULL;}
else
{
while((p0->num > p1->num) && (p1->next != NULL))
{
p2=p1;
p1=p1->next;
}
if (p0->num <= p1->num)
{
if(head==p1) head=p0;
else p2->next=p0;
p0->next=p1;
}
else
{p1->next=p0;p0->next=NULL;}
}
n=n+1;
return head;
}

void main()
{
struct student *head, *stu;
long del_num;
printf("input records:\n");
head=creat();
print(head);
printf("\ninput the deleted number:");
scanf("%ld",&del_num);
while(del_num!=0)
{
head=del(head,del_num);
print(head);
printf("\ninput the deleted record:");
scanf("%ld",&del_num);
}
printf("\ninput the inserted record:");
stu=(struct student *)malloc(LEN);
scanf("%ld,%f",&stu->num,&stu->score);
while(stu->num!=0)
{
head=insert(head,stu);
print(head);
printf("input the inserted record:");
stu=(struct student *)malloc(LEN);
scanf("%ld,%f",&stu->num,&stu->score);
}
}

Answer 3

挺好的