#include<stdio.h>
#include<malloc.h>
#include<windows.h>
#include <stdlib.h>
#define TRUE 1
#define ERROR 0
#define MAX 30
typedef int Status;
typedef struct{
	char option1[30],option2[30],option3[30],option4[30],subject[150];
	char result;
}TestNode;
TestNode Testquestions[MAX];

Status SaveNode(int N)   //把结构体数组保存到文件“单项选择题考试题库”中 
{
	int i;
	FILE *fp;
	if((fp=fopen("单项选择题考试题库","wb"))==NULL)
	return ERROR;
	for(i=0;i<N;i++)
	fwrite(&Testquestions[i],sizeof(TestNode),1,fp);
	fclose(fp);
	return TRUE;
}

Status ReadNode(int N)   //从文件中读出结构体数组的内容
{
	FILE *fp;
	int i=0;
	if((fp=fopen("单项选择题考试题库","rb"))==NULL)
	return ERROR;
	while(!feof(fp))
	{
		fread(&Testquestions[i],sizeof(TestNode),1,fp);
		i++;
	}
	return TRUE;
 }