2级C求解
#include<stdio.h>#define N 5
typedef struct srudent
{
long sno;
char name[10];
float score[3];
}STU;
void fun(char *filename,STU n)
{
FILE *fp;
fp =fopen(filename,"rb+");
fseek (fp, -(long)sizeof(STU),SEEK_END);
fwrite(&n,sizeof(STU),1,fp);
fclose(fp);
}
main()
{
STU t[N]={10001,"MaChao",91,92,77},
{10002,"CaoKai",75,60,88},
{10003,"LiSi",85,70,78},
{10005,"ZhangSan",95,80,88};
STU n ={10006,"ZhaoSi",55,70,68},ss[N];
int i,j; FILE *fp;
fp= fopen("student.dat","wb");
fwrite(t,sizeof(STU),N,fp);
fclose(fp);
fp = fopen("student.dat","rb");
fread(ss,sizeof(STU),N,fp);
fclose(fp);
printf("\nThe original data :\n\n");
for (j =0;j<N;j++);
{
printf("%6.2F",ss[j].score[i]);
printf("\n")
}
fun (student.dat,n);
printf("\n Tne date after modifing :\n\n");
fp =fopen("stundent.dat","rb");
fread(ss,sizeof(STU),N,fp);
fclose(fp);
for(j=0;j<N;j++)
{
printf("\nNo: % ld Name: % -8sScores:",ss[j].sno,ss[j]name);
for (i=0;i<3;i++)
printf("6.2f",ss[j].score[i]);
printf("\n");
}
}
这里怎么运行不了STU t[N]={10001,"MaChao",91,92,77},
{10002,"CaoKai",75,60,88},
