/*收集电影名并打分*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define TSIZE 45
struct film{
        char title[TSIZE];
        int rating;
        struct film *next;
};
int main()
{
    struct film *head=NULL;
    struct film *prev,*current;
    char input[TSIZE];
    /*收集并存储信息*/
    puts("Enter first movie title");
    while(gets(input)!=NULL&&input[0]!='\0')
    {
        current=(struct film *)malloc(sizeof(struct film ));
        if(head==NULL)
            head=current;
        else
            prev->next=current;
        current->next=NULL;
        strcpy(current->title,input);
        puts("Enter your rating <0-10>: ");
        scanf("%d",&current->rating);
        while(getchar()!='\n')
            continue;
        puts("Enter next movie title (empty line to stop): ");
        prev=current;
    }
   /* 给出电影列表*/
    if(head=NULL)
        printf("NO data entered. ");
    else
        printf("Here is the movie list: \n");
    current=head;
    while(current!=NULL)
    {
        printf("MOvie : %s Rating : %d\n",current->title,current->rating);
        current=current->next;
    }
    /* 任务完成，因此释放所分配的内存*/
    current=head;
    while(current!=NULL)
    {
        free(current);
        current=current->next;
    }
    printf("Bye!\n");
    return 0;
}


为什么free(current);释放了还能得到current=current->next;地址啊

这样写法对不对

谁能说下