程序代码：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

struct Account
{
    unsigned int id;
    char citizen_id[19];
    char name[32];
    char address[128];
    unsigned int balance; // 余额

    Account* next; 
};

int intput(Account * p)
{
    printf("ID：\n");
    scanf("%d\n",p->id);
    printf("身份证：\n");
    scanf("%s\n",p->citizen_id);
    if(sizeof(p->citizen_id)!=18)
        return 0;
    printf("name：\n");
    scanf("%s\n",p->name);
    printf("adress：\n");
    scanf("%s\n",p->address);
    printf("balance：\n");
    scanf("%d\n",p->balance);
    return 0;
}

int main()
{
    Account * a = (Account *)malloc(sizeof(Account));
    if(intput(a))
    {
        printf("输入成功\n!");
    }
    else
    {
        printf("输入失败\n!");
    }
    free(a);
    return 0;
}