//1-5题

#include "stdio.h"

typedef struct

{

   char name[10];//姓名

   int subject1,subject2,subject3;//科目1，2，3

   long int sno;//学号

}student;

int InputTerm(student *stu)//在终端输入数据并每人的计算平均分

{

  	int i=0;

	while (i<5)

	{

		printf("Pls input name,subject1,subject2,subject3 and student No\n");

		scanf("%s\t%d\t%d\t%d\t%ld",&stu[i].name,&stu[i].subject1,&stu[i].subject2,&stu[i].subject3,&stu[i].sno);

		printf("Average of %s is:%d\n",stu[i].name,(stu[i].subject1,stu[i].subject2,stu[i].subject3)/3);

		i++;

	}

	return 1;

}

int InputDataTxt(student *stu)//输出到txt文件

{

	int i=0;

	printf("Input 5 student score\n");

    FILE *fd=fopen("data.txt","w");

	if (fd==NULL)

	   return 0;

	while (i<5)

	{

	   scanf("%s\t%d\t%d\t%d\t%ld",&stu[i].name,&stu[i].subject1,&stu[i].subject2,&stu[i].subject3,&stu[i].sno);

       fprintf(fd,"%s\t%d\t%d\t%d\t%ld\n",stu[i].name,stu[i].subject1,stu[i].subject2,stu[i].subject3,stu[i].sno);

	   i++;

	}

	fclose(fd);

	return 1;

}

int ReadData(student *stu)//从文本文件中读数据

{

	FILE *fd=fopen("data.txt","r");

	if (fd==NULL)

		return 0;

	int i=0;

    while(fscanf(fd,"%s\t%d\t%d\t%d\t%ld",&stu[i].name,&stu[i].subject1,&stu[i].subject2,&stu[i].subject3,&stu[i].sno)!=EOF)

	{

		printf("%s\t%d\t%d\t%d\t%ld\n",stu[i].name,stu[i].subject1,stu[i].subject2,stu[i].subject3,stu[i].sno);

        i++;

	}

	fclose(fd);

    return 1;

}

int ReadDataBin(student *stu)//从二进制文件中读数据

{

	FILE *fd=fopen("databin","rb");

	if (fd==NULL)

		return 0;

	int i=0;

    while(fscanf(fd,"%s\t%d\t%d\t%d\t%ld",&stu[i].name,&stu[i].subject1,&stu[i].subject2,&stu[i].subject3,&stu[i].sno)!=EOF)

	{

		printf("%s\t%d\t%d\t%d\t%ld\n",stu[i].name,stu[i].subject1,stu[i].subject2,stu[i].subject3,stu[i].sno);

        i++;

	}

	fclose(fd);

    return 1;

}

int InputDataBin(student *stu)//输入到二进制文件

{

	int i=0;

	printf("Input 5 student score\n");

    FILE *fd=fopen("databin","wb");

	if (fd==NULL)

		return 0;

	while (i<5)

	{

		scanf("%s\t%d\t%d\t%d\t%ld",&stu[i].name,&stu[i].subject1,&stu[i].subject2,&stu[i].subject3,&stu[i].sno);

		fprintf(fd,"%s\t%d\t%d\t%d\t%ld\n",stu[i].name,stu[i].subject1,stu[i].subject2,stu[i].subject3,stu[i].sno);

		i++;

	}

	fclose(fd);

	return 1;

}

void main()

{

	student stu[5];

	InputTerm(stu);

    //InputData(stu);

	//ReadData(stu);

	//InputDataBin(stu);

	//ReadDataBin(stu);

}