求解 creat()=creat()->next;这样不可以head=creat()head=head->next可以顺序打印出去掉creat()=creat()->next又可以打印出第一个数

Question

#include <stdio.h>
#include <stdlib.h>
#define LEN sizeof(struct Student)

struct Student
{
int num;
float score;
struct Student *next;

}man;

struct Student *creat(void)
{
struct Student *p1,*p2,head;
int n=0,i=0;
head=NULL;
p1=p2=(struct Student)malloc(100);
printf("请输入学号:");
scanf("%d",&p1->num);
printf("请输入成绩:");
scanf("%f",&p1->score);

while(p1->num!=0)
{
    n=n+1;
    if(n==1)
    {
        head=p1;
    }
    else
    {
        p2->next=p1;
    }
    p2=p1;
    p1=(struct Student*)malloc(LEN);
    printf("请输入学号:");
    scanf("%d",&p1->num);
    printf("请输入成绩:");
    scanf("%f",&p1->score);
                
}
     p2->next=NULL;
return (head);

}

void main()
{
#if(0)
int i=0;
struct Student *head;
head=creat();

if(head!=NULL)
do
{
printf("the %d 同学的成绩: %f \n",head->num,head->score);
head=head->next;
}while(head=NULL);

#endif

struct Student *creat(void);
do
{
printf("the %d 同学的成绩: %f \n",creat()->num,creat()->score);
creat()=creat()->next;
}while(creat()!=NULL);

}

Answer 1

create()是调用create函数，
creat()=……；//给一个函数赋值？没有这种操作。