刚学习C语言,求大佬指点一下代码哪里有问题 求平均成绩的时候会出现错误

刚学习C语言,求大佬指点一下代码哪里有问题  求平均成绩的时候会出现错误

问题描述:

#include <stdio.h>

# define S 60.0

# define N 3

struct student 

{

 int n;

 char name[10];

 float score[3];

 float ave; 

}; 

int main ()

{

 void input (struct student stu[]);

 void bujige (struct student stu[]);

 void youxiu (struct student stu[]);

 struct student stu[N],*p=stu;

 input (p);

 bujige(p);

 youxiu (p);

 return 0; 

void input (struct student stu[])

{

 int i;

 printf ("请输入各学生的学号姓名及三门课成绩:\n");

 for (i=0;i<N;i++)

 {

  printf ("请输入第%d个学生信息:",i+1);

  scanf ("%d-%s-%f-%f-%f",&stu[i].n,&stu[i].name,&stu[i].score[0],&stu[i].score[1],&stu[i].score[2]);

  stu[i].ave=(stu[i].score[0]+stu[i].score[1]+stu[i].score[2])/3.0;

  printf ("\n");

  printf ("%f",stu[i].ave);

 } 

}

void bujige (struct student stu[])

{

 int i,j,k=0;

 for (i=0;i<N;i++)

 {

  for (j=0;j<3;j++)

  {

   if (stu[i].score[j]<S)

   k++; 

  }

  if (k>1)

  {

   printf ("\n");

   printf ("学号:%d",stu[i].n);

   for (j=0;j<3;j++)

   {

    if (stu[i].score[j]<S)

    printf ("不及格成绩:%f ",stu[i].score[j]);

   }

  } 

 } 

}

void youxiu (struct student stu[])

{

 int i;

 for (i=0;i<N;i++)

 {

  if (stu[i].ave>=85.0&&stu[i].ave<=90.0)

  printf ("学号:%d 姓名:%s",stu[i].n,stu[i].name);  

 }   

}

scanf ("%d-%s-%f-%f-%f",&stu[i].n,&stu[i].name,&stu[i].score[0],&stu[i].score[1],&stu[i].score[2]);

改为

scanf ("%d-%s",&stu[i].n,&stu[i].name);

fflush(stdin);

scanf (%f-%f-%f",&stu[i].score[0],&stu[i].score[1],&stu[i].score[2]);

看了一下,有几个小问题,已修改

#include <stdio.h>

# define S 60.0

# define N 3

struct student

{
	int n;

	char name[10];

	float score[3];

	float ave;

};

int main()

{
	void input(struct student stu[]);

	void bujige(struct student stu[]);

	void youxiu(struct student stu[]);

	struct student stu[N], *p = stu;

	input(p);

	bujige(p);

	youxiu(p);

	return 0;

}

void input(struct student stu[])

{
	int i;

	printf("请输入各学生的学号姓名及三门课成绩:\n");

	for (i = 0; i<N; i++)

	{
		printf("请输入第%d个学生信息:", i + 1);

		scanf("%d %s %f %f %f", &stu[i].n, stu[i].name, &stu[i].score[0], &stu[i].score[1], &stu[i].score[2]);

		stu[i].ave = (stu[i].score[0] + stu[i].score[1] + stu[i].score[2]) / 3.0;

		printf("\n");

		printf("%f", stu[i].ave);

	}

}

void bujige(struct student stu[])

{
	int i, j, k = 0;

	for (i = 0; i<N; i++)

	{
		k = 0;
		for (j = 0; j<3; j++)

		{
			if (stu[i].score[j]<S)

				k++;

		}

		if (k>0)

		{
			printf("\n");

			printf("学号:%d", stu[i].n);

			for (j = 0; j<3; j++)

			{
				if (stu[i].score[j]<S)

					printf("不及格成绩:%f ", stu[i].score[j]);

			}

		}

	}

}

void youxiu(struct student stu[])

{
	int i;

	for (i = 0; i<N; i++)

	{
		if (stu[i].ave >= 85.0&&stu[i].ave <= 90.0)

			printf("学号:%d 姓名:%s\n", stu[i].n, stu[i].name);

	}

}

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