sewinum.c

设计一个学生成绩管理系统

#include"jinhe.h"
void search_with_number()
{ FILE *fp;
  int i;
  long int num;
  extern char filename[15];
  struct student stu[M];
  if((fp=fopen(filename,"rb"))==NULL)
  { clrscr();
    gotoxy(15,15);
    printf("Cannot open file.Please press any key return.");
    getch();
    return;
  }
  clrscr();
  gotoxy(15,15);printf("Please input the number you want to search:");
  scanf("%ld",&num);
  clrscr();
  gotoxy(5,2);
  printf("****************Computer technology and science 2 ban****************");
  gotoxy(52,3);
  printf("----number search----");
  gotoxy(5,4);
  printf("|-------------------------------------------------------------------|");
  gotoxy(5,5);
  printf("|--NUMBER--|-----NAME------|-SEX-|-ENGLI-|-COMPE-|-MATH-|-CPR-|-AVE-|");
  gotoxy(5,6);
  printf("|----------|---------------|-----|-------|-------|------|-----|-----|");
  for(i=0;;i++)
  { fread(&stu[i],LEN,1,fp);
    if(stu[i].no==0)
    { clrscr();
      gotoxy(5,10);
      printf("Cannot find the student.");break;
    }
    if(stu[i].no==num)
    { gotoxy(5,7);
      printf("|----------|---------------|-----|-------|-------|------|-----|-----|");
      gotoxy(5,8);printf("|");
      gotoxy(16,8);printf("|");
      gotoxy(32,8);printf("|");
      gotoxy(38,8);printf("|");
      gotoxy(46,8);printf("|");
      gotoxy(54,8);printf("|");
      gotoxy(61,8);printf("|");
      gotoxy(67,8);printf("|");
      gotoxy(73,8);printf("|");
      gotoxy(6,8);printf("%ld",stu[i].no);
      gotoxy(17,8);printf("%s",stu[i].name);
      gotoxy(33,8);printf("%s",stu[i].sex);
      gotoxy(39,8);printf("%.1f",stu[i].english);
      gotoxy(47,8);printf("%.1f",stu[i].computer);
      gotoxy(55,8);printf("%.1f",stu[i].maths);
      gotoxy(62,8);printf("%.1f",stu[i].c_programe);
      gotoxy(68,8);printf("%.1lf",stu[i].average);
      gotoxy(5,9);printf("|----------|---------------|-----|-------|-------|------|-----|-----|");break;
    }
  }
  fclose(fp);
  gotoxy(29,10);
  printf("Press any key to return.");
  getch();
}