17070047 / 17070047/CodeStructureCourse

王锡科

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Dominant language
C++
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2
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Description

```c
#include
#include

#define N 50
#define M 200
typedef struct node {

int id; //卡号
char name[N]; //姓名
int classid; //班号
char major[N]; //系别
} st_info;
typedef struct {
st_info adjlist[M];
int s; //学生人数
}student;

void creat(student *A,char file[]) //从文件录入每个学生的信息
{
int i,j,k;
FILE *fp;
fp=fopen(file,"r");
if (fp==NULL)
{
printf("打开文件失败!");
exit;
}
fscanf(fp,"%d",&A->s); //得到学生人数
for (i=0;is;i++)
{
fscanf(fp,"%d",&A->adjlist[i].id); //卡号
fscanf(fp,"%ls",&A->adjlist[i].name); //姓名
fscanf(fp,"%d",&A->adjlist[i].classid); //班号
fscanf(fp,"%ls",&A->adjlist[i].major); //系别
}
fclose(fp);
}

void info_sort(student *A) //对卡号进行冒泡排序 卡号按照从小到大顺序排列
{
int i,j;
int n;
st_info p;
n=A->s;
for (i=0;iadjlist[j].id>A->adjlist[j+1].id)
{
p=A->adjlist[j];
A->adjlist[j]=A->adjlist[j+1];
A->adjlist[j+1]=p;
}
}
}

void search(student *A,char major1[N]) //按系名进行检索
{
int i;
for (i=0;is;i++)
{
//for (int j=0;jadjlist[i].major[0]==major1[0])
{
printf("%3d %ls %4d %ls",A->adjlist[i].id,A->adjlist[i].name,A->adjlist[i].classid,A->adjlist[i].major);
printf("\n");
}

}
}

int main ()
{
student S;
char m[N];
char filename[]="student_info.txt";
creat(&S,filename);
printf("卡号 姓名 班号 系别\n");
for (int i=0;i

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