关于fprintf fscanf 为什么写入磁盘45678，再读出来变6487572

Question

#include
int main()
{
FILE *fp;
int i,k=0;
fp=fopen("test.dat","w");
for(i=4;i<=8;i++);
fprintf(fp,"%d",i);
fclose(fp);
fp=fopen("test.dat","r");
fscanf(fp,"%d",&k);
printf("%d\n",k);
fclose(fp);
return 0;

}

Answer 1

fprintf(fp,"%d",i);
fscanf(fp,"%d",k);
->
fprintf(fp,"%d",&i);
fscanf(fp,"%d",&k);