#include<stdio.h>#include<stdlib.h>#define LEN sizeof(struct student)struct student{? ? long num;? ? float score;? ? struct student *next;};int n;struct student *creat(void){? ? struct stduent *head;? ? struct student *p1,*p2;? ? n=0;? ? p1=p2=(struct student *) malloc(LEN);? ? scanf("%ld,%f",&p1->num,&p1->score);? ? head=NULL;? ? while(p1->num!=0)? ? {? ? ? ? n=n+1;? ? ? ? if(n==1) head=p1;? ? ? ? else p2->next=p1;? ? ? ? p2=p1;? ? ? ? p1=(struct student *) malloc(LEN);? ? ? ? scanf("%ld,%f",&p1->num,&p1->score);? ? }? ? p2->next=NULL;? ? return (head);}int main(){? ? struct student *pt;? ? pt=creat();? ? printf("\n num:%ld\n score:%5.1f\n",pt->num,pt->score);? ? return 0;}