C语言。如何将字符串添加到链接列表中

Question

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已关闭 10 年前。

由于某种原因我无法让它工作。这是我在代码中的函数，如果这还不足以帮助您，我会很乐意发布整个代码。

char addcity()
{
    citylist=malloc(sizeof(struct city));
    struct city *temp;
    char addcity[50];
    char addstate[50];
    char addpopulation[50];
    char addregion[50];
    char addzipcode[50];
    //temp = citylist;
    //citylist=malloc(sizeof(struct city));
    //struct city *ptr=citylist;
    struct city *ptr= (struct city*)malloc(sizeof(struct city));
    printf("Which city would you like to add?: ");
    scanf("%s",addcity);
    printf("Which state is the city in?: ");
    scanf("%s",addstate);
    printf("What is the population?: ");
    scanf("%s", addpopulation);
    printf("what is the region?: ");
    scanf("%s", addregion);
    printf("what is the zipcode?: ");
    scanf("%s", addzipcode);
    int found;
    ptr->name=addcity;
    ptr->statecode=addstate;
    ptr->population=addpopulation;
    ptr->region=addregion;
    ptr->zipcode=addzipcode;
    ptr->next=NULL;

    curr->next=ptr;
    curr=ptr;

    printlist();  //this just prints out the whole list.

有时我会遇到段错误，有时它根本不起作用。我必须使用 strcpy(a,b) 来复制字符串吗？

Answer 1

printf("Which city would you like to add?: ");
scanf("%s",&ptr->name);
printf("Which state is the city in?: ");
scanf("%s",&ptr->statecode);
printf("What is the population?: ");
scanf("%s",&ptr->population);
printf("what is the region?: ");
scanf("%s",&ptr->region);
printf("what is the zipcode?: ");
scanf("%s",&ptr->zipcode);