newrecord.c

比较原始的学校出题系统

void newRecord(FILE * fPtr)
{
 char y_n;
 struct examination ex3;
 int acctNum;
bingo1:
 printf("Enter new 试题编号(1~100): ?");
 scanf("%d",&acctNum);
 fseek(fPtr,(acctNum - 1)*sizeof(struct examination),SEEK_SET);
 fread(&ex3,sizeof(struct examination),1,fPtr);
 if(ex3.acctNum != 3)
 {
  printf("编号 # %d already contains information.\n",acctNum);
 }
 else
 {
  printf("Enter 试题内容(<100 bytes) :?");
  scanf("%s",ex3.content);
  printf("Enter 试题答案(<10 bytes) :?");
  scanf("%s",ex3.answer);
  printf("Enter 试题题型(1~3) :?");
  scanf("%d",&ex3.type);
  while(ex3.type!=1||ex3.type!=2||ex3.type!=3)
  {
   printf("输入有误,请重输");
   scanf("%d",&ex3.type);
  }
  printf("Enter 试题知识点(1~15) :?");
  scanf("%d",ex3.knowledge);
  while(ex3.knowledge<1||ex3.knowledge>15)
  {
   printf("输入有误,请重输");
   scanf("%d",&ex3.knowledge);
  }
  ex3.acctNum = acctNum;
  fseek(fPtr,(ex3.acctNum - 1)*sizeof(struct examination),SEEK_SET);
  fwrite(&ex3,sizeof(struct examination),1,fPtr);
  printf("添加成功!");
 }
 printf("是否继续添加?(Y/N)");
 y_n = getch();
 printf("%c",y_n);
 if(y_n == 'y')
  goto bingo1;
}