求：c语言文件读取问题，求告知哪里有误，读取的时候不完整，而且有重复。。

# include "stdio.h"
# include "stdlib.h"
# define M 20
struct book
{
long bh;
char mc[100];
char zz[100];
int jq; int sl;
}b[M];
void main()
{ int i;
FILE *fp;

fp=fopen("d:\\book.txt","r");
if(fp==NULL)
{
printf("Error!\n");
exit(0);
}
for(i=0;i {
fread(&b[i],sizeof(struct book),1,fp);
printf("%ld\n%s\n%s\n%d\n%d\n",b[i].bh ,b[i].mc ,b[i].zz ,b[i].jq ,b[i].sl );
break;
}
fclose(fp);
}

# include "stdio.h"
# include "stdlib.h" 
# define M 10  
struct book
{       
long bh;  
char mc[100];    
char zz[100];   
int jq; 
int sl;
}b[M];  
void main() 
{ 
int i; 
FILE *fp;

fp=fopen("d:\\book.txt","r");
if(fp==NULL)
{
printf("Error!\n");
exit(0);
}
for(i=0;i {
fscanf(fp,"%ld%s%s%d%d",&b[i].bh,b[i].mc,b[i].zz,&b[i].jq,&b[i].sl);//这样读
printf("%ld\n%s\n%s\n%d\n%d\n",b[i].bh ,b[i].mc ,b[i].zz ,b[i].jq ,b[i].sl );
//去掉break
}
fclose(fp);
}

#include int main() { char buffer[1024]="423\t0.0\t0.0\t"; char a[10], b[10], c[10]; int r = sscanf(buffer, "%[^\t]\t%[^\t]\t%[^\t]", a, b, c); (r == 3) && printf("a = %s, b = %s, c = %s\n", a, b, c); return 0; }