c++大作业学生信息管理系统源代码

{

q=p->next;

while (q)

{

if (p->total<q->total)

{

strcpy(a,p->num);strcpy(p->num,q->num);strcpy(q->num,a);

strcpy(a,p->name);strcpy(p->name,q->name);strcpy(q->name,a);

strcpy(a,p->clas);strcpy(p->clas,q->clas);strcpy(q->clas,a);

b=p->chinese;p->chinese=q->chinese;q->chinese=b;

b=p->maths;p->maths=q->maths;q->maths=b;

b=p->english;p->english=q->english;q->english=b;

b=p->total;p->total=q->total;q->total=b;

}

q=q->next;

}

p=p->next;

}

}

//◆7

void xuehao(student *head) //按学号从小到大排序功能

{

student *p,*q;

char a[30];

int b;

float c;

p=head;

while (p)

{

q=p->next;

while (q)

{

if (strcmp(p->num,q->num)>0)

{

strcpy(a,p->num);strcpy(p->num,q->num);strcpy(q->num,a); c=p->average;p->average=q->average;q->average=c;

strcpy(a,p->name);strcpy(p->name,q->name);strcpy(q->name,a);

strcpy(a,p->clas);strcpy(p->clas,q->clas);strcpy(q->clas,a);

b=p->chinese;p->chinese=q->chinese;q->chinese=b;

b=p->maths;p->maths=q->maths;q->maths=b;

b=p->english;p->english=q->english;q->english=b;