求解答，fopen引用以后显示不出来
#ifndef _STUDENT_H_#define _STUDENT_H_
#define LEN sizeof(struct student)
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <malloc.h>
#include <math.h>
#include <windows.h>
#include <conio.h>
struct student
{
char name[100];
long num;
char grade[100];
char Class[100];
char sex[100];
char nation[100];
char position[100];
float s1;
float s2;
float s3;
float s4;
float s5;
float s6;
struct student *next;
};
void color(short x);
struct student *space();
void print(struct student *head);
#endif // _STUDENT_H
void color(short x)
{
if(x>=0&&x<=15)SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),x);
else SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),7);
}
int main()
{
printf("\t\t\t 欢迎您使用大学生成绩管理系统，请按回车键进行您想要的操作");
getchar();
printf("\n");printf("\n");printf("\n");
color(6);printf("\t\t\t◤※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※◥\n");
printf("\n");printf("\n");
color(3);printf("\t\t\t←←← 大学生成绩管理系统 →→→\n");
printf("\n");printf("\n");
color(6);printf("\t\t\t←←← 1.数据查询 →→→\n");
color(2);printf("\t\t\t←←← 2.数据浏览 →→→\n");
color(3);printf("\t\t\t←←← 3.数据维护 →→→\n");
color(14);printf("\t\t\t←←← 4.信息输入 →→→\n");
color(15);printf("\t\t\t←←← 5.数据统计 →→→\n");
color(5);printf("\t\t\t←←← 6. 帮助 →→→\n");
color(7);printf("\t\t\t←←← 7. 退出 →→→\n");
printf("\n");printf("\n");
color(10);printf("\t\t\t\tThis system is powered by 人智2001葛琪琛&&人智2001缪天雨\n");
color(6);printf("\t\t\t◣※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※◢\n");
printf("\n");printf("\n");
color(8);printf("请输入您要进行的操作前的序号");
int a;
struct student *head;
scanf("%d",&a);
switch(a)
{
case 1:
{ int num1;
printf("请选择查询方式\n");
printf("1.单一查询\n2.组合查询\n3.模糊查询\n");
scanf("%d",&num1);
/*switch(num1)
{
case 1:
{
printf("1.按姓名查询学生信息\n2.按学号查询学生信息\n");//可以添加
scanf("%d",&num2);
switch(num2)
{
case 1:
{
inquire1();//姓名查询函数
}
case 2:
{
inquire2();//学号查询函数
}
}
break;
}
case 2:
{
printf("1.按姓名和课程查询成绩\n2.按学号和课程查询成绩");//可以添加
scanf("%d",&num3);
switch(num3)
{
case 1:
{
inquire3();//函数
}
case 2:
{
inquire4();//函数
}
}
break;
}
case 3:
{
printf("1.按姓名查询学生信息\n2.按地址查询学生信息\n");//可以添加
scanf("%d",&num4);
switch(num4)
{
case 1:
{
inquire5();//函数
}
case 2:
{
inquire6();//函数
}
}
break;
}
}*/
}
case 2:
{
system("cls");
printf("\t\t\t\t\t此时您进行的是数据浏览\n");
printf("\t\t\t********************学生成绩信息表********************\n");
printf("姓名\t学号\t年级\t班级\t性别\t民族\t省市\t线代\t高数\t英语\t思修\t心理健康\t大物\n");
print(head);
printf("\n按任意键回到菜单\n");
getch();
system("cls");
break;
}
case 3:{printf("此时您进行的是数据维护\n");break;}
case 4:{printf("此时您进行的是信息输入\n");break;}
case 5:{printf("此时您进行的是数据统计\n");break;}
case 6:{printf("请问与什么可以帮到您的吗？\n");printf("以下是询问次数较多的问题\n");break;}
case 7:{printf("感谢您的使用，祝您万事顺利，再见");break;}
default:break;
}
return 0;
}
struct student *space()
{
char b[100];
FILE *fp=fopen("C:\\Users\\HP\\Desktop\\c语言程序设计","rt");
struct student *head,*p,*q;
p=q=(struct student *)malloc(LEN);
if((fp=fopen("C:\\Users\\HP\\Desktop\\c语言程序设计","rt"))==NULL)
{
printf("can't open file correctly\n");
exit(0);
}
fgets(b,100,fp);
head=p;
fscanf(fp,"%s%ld%s%s%s%f%f%f%f%f%f\n",p->name,&q->num,&p->sex,&p->nation,&p->position,&p->s1,&p->s2,&p->s3,&p->s4,&p->s5,&p->s6);
while(!feof(fp))
{
q=(struct student *)malloc(LEN);
fscanf(fp,"%s%ld%s%s%s%f%f%f%f%f%f\n",p->name,&q->num,&p->sex,&p->nation,&p->position,&p->s1,&p->s2,&p->s3,&p->s4,&p->s5,&p->s6);
p->next=q;
p=q;
}
p->next=NULL;
fclose(fp);
return head;
}
void print(struct student *head)
{
struct student *p;
p=head;
while(p)
{
printf("%s%ld%s%s%s%.2f%.2f%.2f%.2f%.2f%.2f\n",p->name,p->num,p->sex,p->nation,p->position,p->s1,p->s2,p->s3,p->s4,p->s5,p->s6);
p=p->next;
}
}
