C语言编程题：有5个学生，每个学生有3门课成绩，从键盘上输入以上数据（包括学号、姓名、数学语文英

#include 
#include  
#define NAME_MAX 10
#define NUMBER_MAX 10
#define STUDENTS_MAX 5
#define CLEAR_ENTER(array) for(int idx=0;array[idx]!='\0';idx++)\
								if(array[idx]=='\n')\
									array[idx]='\0';
typedef unsigned int Uint32;
typedef struct stu
{
	char name[NAME_MAX];
	char stu_number[NUMBER_MAX];
	Uint32 chinese;
	Uint32 math;
	Uint32 english;
} stu;

int main(void)
{
	stu students[STUDENTS_MAX];
	int idx=0;
	printf("输入5个学生的信息\n");
	for(idx=0;idx	{
		printf("name:");
		fgets(students[idx].name,NAME_MAX,stdin);
		printf("number:");
		//fgets(students[idx].stu_number,NUMBER_MAX,stdin);
		fgets(students[idx].stu_number,NUMBER_MAX,stdin);
		printf("三项分数(语文，数学，英语)：");
		scanf("%d%d%d",&students[idx].chinese,&students[idx].math,&students[idx].english);
		getchar();
	}
	FILE * fp = fopen("stu.txt","w+");
	if(!fp)
		return -1;
	for(idx=0;idx	{
		printf("name:%s\nnumber:%s\nchinese:%d\nmath:%d\nenglish:%d\n",students[idx].name,
																		students[idx].stu_number,
																		students[idx].chinese,
																		students[idx].math,
																		students[idx].english);
		fprintf(fp,"name:%s\nnumber:%s\nchinese:%d\nmath:%d\nenglish:%d\n",students[idx].name,
																		students[idx].stu_number,
																		students[idx].chinese,
																		students[idx].math,
																		students[idx].english);
	}
	system("pause");
	return 0;
}

简单的写了一个，没有调试过。编译通过，Mingw3.4.7.

#include
int main()
{
void aver(float *p,int n,int m);
int i,j;
float score[5][3];float *p;
p=score[0];
for(i=0;i<5;i++)
{
printf("请输入第%d学生的三门课程的成绩：\n",i+1);
for(j=0;j<3;j++)
scanf("%f\n",&score[i][j]);
}
aver(p,5,3);
}

void aver(float *p,int n,int m)
{
float sum;
int i,j;
for(i=0;i{sum=0;
for(j=0;jsum+=*(p+i*m+j);
printf("\n第%d个学生平均成绩：%5.2f\n",i+1,sum/m);
}
}

#include "stdio.h"
struct student
{ char num[6];
char name[8];
int score[3];
float avr;
} stu[5];
main()
{int i,j,sum;
FILE *fp;
/*input*/
for(i=0;i<5;i++)
{ printf("\n please input No. %d score:\n",i);
printf("stuNo:");
scanf("%s",stu[i].num);
printf("name:");
scanf("%s",stu[i].name);
sum=0;
for(j=0;j<3;j++)
{ printf("score %d.",j+1);
scanf("%d",&stu[i].score[j]);
sum+=stu[i].score[j];
}
stu[i].avr=sum/3.0;
}
fp=fopen("stud","w");
for(i=0;i<5;i++)
if(fwrite(&stu[i],sizeof(struct student),1,fp)!=1)
printf("file write error\n");
fclose(fp);
}