ch13_8.c

C语言程序设计上机指导与练习 冶金工业出版社 刘怀亮

/*CH13_8*/
/*在学生文件stu_list 中读出第二个学生的数据*/
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
struct stu
{
   char name[10];
   int num;
   int age;
   char addr[15];
}boy,*qq;

main()
{
   FILE *fp;
   char ch;
   int i=1;
   qq=&boy;
   if((fp=fopen("stu_list","rb"))==NULL)
   {
      printf("Cannot open file strike any key exit!");
      getch();
      exit(1);
   }
   rewind(fp);
   fseek(fp,i*sizeof(struct stu),0);
   fread(qq,sizeof(struct stu),1,fp);
   printf("\n\nname\tnumber age addr\n");
   printf("%s\t%5d %7d %s\n",qq->name,qq->num,qq->age,qq->addr);
}