殷吉奎

```c
#include"stdio.h"
#include"stdlib.h"
#include"string.h"
#define m 20
#define max 100
typedef struct studentnode{
char cardnum[m];
char name[m];
char classnum[m];
char college[m];
}node;
typedef struct{
node r[max+1];
int length;
}table;
void sort(table *tab,int left,int right)
{
int i,j;
if(leftr[0]=tab->r[i];
do
{
while(strcmp(tab->r[j].cardnum,tab->r[0].cardnum)==1&&ir[i]=tab->r[j];
i++;
}
while(strcmp(tab->r[i].cardnum,tab->r[0].cardnum)==-1&&ir[j]=tab->r[i];j--;}
}while(i!=j);
tab->r[i]=tab->r[0];
sort(tab,left,i-1);
sort(tab,i+1,right);
}
}
void creat(table *tab)
{
int i,j,k;
printf("请输入借书数：\n");
scanf("%d",&tab->length);
tab->length++;
getchar();
for(i=1;ilength;i++)
{
printf("请输入卡号：\n");
gets(tab->r[i].cardnum);
printf("请输入名字：\n");
gets(tab->r[i].name);
printf("请输入班号：\n");
gets(tab->r[i].classnum);
printf("请输入系别：\n");
gets(tab->r[i].college);
printf("\n");
}
printf("创建完成\n");
}
void find(table *tab)
{
int i,j;
char object[m];
printf("请输入你要查找的系别：\n");
gets(object);
for(i=1;ilength;i++)
{
if(strcmp(object,tab->r[i].college)==0)
{
puts(tab->r[i].cardnum);
puts(tab->r[i].name);
puts(tab->r[i].classnum);
puts(tab->r[i].college);
printf("\n");
}
}
}
void display(table *tab)
{
int i;
for(i=1;ilength;i++)
{
puts(tab->r[i].cardnum);
puts(tab->r[i].name);
puts(tab->r[i].classnum);
puts(tab->r[i].college);
printf("\n");
}
}
int main()
{
int i;
table *tab;
tab=(table *)malloc(sizeof(table));
creat(tab);
sort(tab,1,tab->length-1);
display(tab);
printf("请输入任意数字进行查询：\n");
while(scanf("%d",&i)!=EOF)
{
getchar();
find(tab);
}
return 0;
}

```

The issue contains a C program for a student record system with sorting and search functions. The problem is not described; the code is pasted without context. To start, examine the repository structure to see if this is a submission or a bug report. Look for related test files or documentation about expected behavior. Determine what 'done' means by checking if the code compiles, runs correctly, or needs integration.

由索引模型根據 Issue 內容生成。