c语言为什么我这个链表第一个成绩输出时永远都是0

Question

c语言为什么我这个链表第一个成绩输出时永远都是0#include<stdio.h>
#include<malloc.h>
#include<stdlib.h>
#define LEH sizeof(struct student)
struct student *creat(); //创建链表
void print(struct student *head);
struct student
{
int num;
float score;
struct student *next;
};
int n; //全局变量，记录存放了多少数据
void main()
{
struct student *stu;
stu=creat();
print(stu);
printf("\n\n");
system("pause");
}
struct student *creat()
{
struct student *head;
struct student *p1,*p2;
p1=p2=(struct student *)malloc(LEH);
printf("please enter the num:");
scanf ("%d",&p1->num);
printf("please enter the score:");
scanf ("%d",&p1->score);
head=NULL;
n=0;
while (p1->num)
{
n++;
if (n==1)
{
head=p1;
}
else
{
p2->next=p1;
}
p2=p1;
p1=(struct student *)malloc(LEH);
printf("\nplease enter the num:");
scanf ("%d",&p1->num);
printf("please enter the score:");
scanf ("%f",&p1->score);
}
p2->next=NULL;
return head;
}
void print(struct student *head)
{
struct student *p;
printf("\n Thera are %d records!\n\n",n);
p=head;
do
{
printf("学号:%d\t成绩:%lf\n",p->num,p->score);
p=p->next;
}
while (p);
}

Answer 1

score应该使用%f来读入

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