学生信息录入到文件中遇到error

Question

#include"stdio.h"
#include"stdlib.h"
typedef struct student
{
long unsigned id;
char name[20];
double grades;
}Student;
int main()
{
char ch,num[80];
Student s;
FILE *fp;
fp=fopen("shiyan.txt","wb");
printf("Enter records:\n");
while(1)
{
printf("id: ");
gets(num);
s.id=atol(num);
printf("name: ");
gets(s.name);
printf("grades:");
gets(num);
s.grades=atof(num);
fwrite(&s,sizeof(s),1,fp);
printf("another(y/n)?");
ch=getchar();
if(ch=='n')
break;
gets(num);
}
fclise(fp);
return 0;
}

会出现一个error：LINK : fatal error LNK1117: syntax error in option "subsystem:windows/incremental:yes"

求解