标头中定义的TypeDef结构

Question

家庭作业

#ifdef HOMEWORK_H_
#define HOMEWORK_H_

typedef struct
{
        int IDNumber;
        char FirstName[30];
        char LastName[30];
}Student;

int AddStudent();
#endif

GradeFunctions.c

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

#define MAX 100

int AddStudent()
{
        int i;
        int StuNumber = 0;

        Student store[MAX];

        for(i = 0; i < 0; i++)
        {
                if(Strlen(store[i].FirstName) > 0)
                {
                        if(Strlen(store[i].LastName) > 0)
                        {
                                if(Strlen(store[i].IDNumber) > 0)
                                {
                                        int StuNumber = i;
                                        break;
                                }
                        }
                }
        }
        printf("Please enter the students first name: ");
        scanf("%s", store[StuNumber].FirstName);
        printf("\n");
        printf("Please enter the students last name: ");
        scanf("%s", store[StuNumber].LastName);
        printf("\n");
        printf("Please enter the students ID Number: ");
        scanf("%d", &store[StuNumber].IDNumber);
        printf("\n");
        return 0;
}

每次尝试编译时，我都会不断收到此错误

GradeFunctions.c: In function ‘AddStudent’:
GradeFunctions.c:13:2: error: unknown type name ‘Student’
GradeFunctions.c:17:21: error: request for member ‘FirstName’ in something not a structure or union
GradeFunctions.c:19:22: error: request for member ‘LastName’ in something not a structure or union
GradeFunctions.c:21:23: error: request for member ‘IDNumber’ in something not a structure or union
GradeFunctions.c:30:30: error: request for member ‘FirstName’ in something not a structure or union
GradeFunctions.c:33:30: error: request for member ‘LastName’ in something not a structure or union
GradeFunctions.c:36:31: error: request for member ‘IDNumber’ in something not a structure or union

我花了最后几个小时试图在我的教科书和在线中找到这种情况的原因，但是没有结果。 我究竟做错了什么？

Answer 1

#ifdef HOMEWORK_H_

应该

#ifndef HOMEWORK_H_
  ^^^ Missing n

因此，文件的内容不包含在代码库中。