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我是一名学生初学c,程序出错不知如何改int i,j;
#include<stdio.h>
struct student
{int num[10];
char name[10];
int score[4];
} stu[4];
main()
{FILE *f1,*f2,*f3,*f4;
FILE *ffp,*ph;
int a,b,k,n,temp;
float jl,yl,p;
void enterdata();
void save();
void fsave();
int max();
int min();
float pass();
float youxiu();
void sorted();
float avg();
enterdata();
save();
for(j=0;j<4;j++)
{a=max();
b=min();
p=avg();
jl=pass();
yl=youxiu();
printf("score[%d]:\nmax=%3d\tmin=%3d\tavg=%3.1f\tjigelv=%3.1f% \t",j,a,b,p,100*jl);
printf("youxiulv=%3.1f%\n",100*yl);}
for(i=0;i<4;i++)
{for(k=0;k<4;k++)
{for(n=k+1;n<4;n++)
{if(stu.score[k]<stu.score[n])
{ temp=stu.score[k];
stu.score[k]=stu.score[n];
stu.score[n]=temp;}}}}
f1=fopen("f1","w");f2=fopen("f2","w");f3=fopen("f3","w");f4=fopen ("f4","w");
for(i=0;i<4;i++)
{ffp=fopen("file","w");
for(j=0;j<4;j++)
fwrite(&stu.score[j],sizeof(struct student),1,ffp);
fclose(ffp);
switch(i)
{case 0:f1=ffp;fclose(f1);break;
case 1:f2=ffp;fclose(f2);break;
case 2:f3=ffp;fclose(f3);break;
case 3:f4=ffp;fclose(f4);break;}
}
}
void save()
{FILE *fp;
int i;
fp=fopen("f0","w");
for(i=0;i<4;i++)
fwrite(&stu,sizeof(struct student),1,fp);
fclose(fp);}
void test()
{FILE *fp;
fp=fopen("f0","r");
for(i=0;i<4;i++)
{fread(&stu,sizeof(struct student),1,fp);
printf("no:%s,name:%s,",stu.num,stu.name);
for(j=0;j<4;j++)
printf("score:%d,",stu.score[j]);
printf("\n");}
}
int max()
{int max=0;
for(i=0;i<4;i++)
if(stu.score[j]>max)
max=stu.score[j];
return(max);
}
float pass()
{float sum=0;float jgl;
for(i=0;i<4;i++)
if(stu.score[j]>=60)
sum=sum+1;
jgl=sum/4;
return(jgl);
}
float youxiu()
{float num=0; float yxl;
for(i=0;i<4;i++)
if(stu.score[j]>=90)
num=num+1;
yxl=num/4;
return(yxl);
}
int min()
{int min=200;
for(i=0;i<4;i++)
if(stu.score[j]<min)
min=stu.score[j];
return(min);
}
void enterdata()
{for(i=0;i<4;i++)
{printf("\n Input score of student%d:\n",i);
printf("No:");
scanf("%s",stu.num);
printf("name:");
scanf("%s",stu.name);
for(j=0;j<4;j++)
{printf("score[%d]:",j);
scanf("%d",&stu.score[j]);}
}
}
float avg()
{int sum=0; float avg;
for(i=0;i<4;i++)
sum=sum+stu.score[j];
avg=sum/4;
return(avg);}
出错信息
Compiling D:\PROGRAM\TC\TC\C1.C:
Error D:\PROGRAM\TC\TC\C1.C 2: Unable to open include file 'STDIO.H'
Error D:\PROGRAM\TC\TC\C1.C 9: Undefined symbol 'FILE' in function mai
Error D:\PROGRAM\TC\TC\C1.C 9: Undefined symbol 'f1' in function main
Error D:\PROGRAM\TC\TC\C1.C 9: Undefined symbol 'f2' in function main
Error D:\PROGRAM\TC\TC\C1.C 9: Invalid indirection in function main
Error D:\PROGRAM\TC\TC\C1.C 9: Undefined symbol 'f3' in function main
Error D:\PROGRAM\TC\TC\C1.C 9: Invalid indirection in function main |
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