struct student
{
int age;
char name[20];
float score;
};
void Inputstudent(struct student * p,int a);
void Outputstudent(struct student * p,int b);
void paixu(struct student * p,int c);
int main(void)
{
int len;
printf("请输入学生个数:\n");
printf("len=");
scanf("%d",&len);
struct student * parr;
parr = (struct student *)malloc(len * sizeof(struct student));
Inputstudent(parr, len);
paixu(parr, len);
printf("\n\n\n");
Outputstudent(parr, len);
//paixu(parr, len);
return 0;
}
void Inputstudent(struct student * p,int a)
{
int i;
for(i=0; i<a; i++)
{
printf("请输入第%d个学生的信息\n",i+1);
printf("age=");
scanf("%d",&p[i].age);
printf("name=");
scanf("%s",p[i].name);
printf("score=");
scanf("%f",&p[i].score);
}
}
void Outputstudent(struct student * p,int b)
{
printf("按成绩由高到低排序为：\n");
int i;
for(i=0; i<b; i++)
{
printf("第%d名学生的信息是：\n",i+1);
printf("%d\n",p[i].age);
printf("%s\n",p[i].name);
printf("%3.2f\n",p[i].score);
}
}
void paixu(struct student *p, int c)
{
int i,j;
struct student t;
for(i=0; i<c-1; i++)
{
for(j=0; j<c-i-1; j++)
{
if(p[i].score < p[i+1].score)
{
t = p[i];
p[i] = p[i+1];
p[i+1] = t;
}
}
}
}