2008秋季-计算机软件基础- 线性表顺序存储 - 菜单

/* 2008-10-27 */
/* tod: 删除, 修改, 参考: 教材P63-67*/

# include<stdio.h>
#define N 1

typedef struct student

{

  char xuehao[10];

  char xingming[10];

  int  chengji;

} S ;

void xianshicaidan()

{

  printf("\n1 - Initialization.\n");

  printf("2 - Enter Scores.\n");

  printf("3 - Insert Score.\n");

  printf("4 - Display Scores.\n");

  printf("0 - Exit System.\n");

}

void Initial(S a[], int length)

{

  int i;

  printf("Please enter XueHao & Xingming (%d students):\n",length);

  for(i=0;i<length;i++)

  {

      scanf("%s%s",a[i].xuehao,a[i].xingming);

      a[i].chengji=0;

  }

}

void insert(S a[], int *length)

{

  int i,location;

  S x;

  printf("Please enter location:\n");

  scanf("%d",&location);

  printf("Please enter XueHao & Xingming & Chengji:\n");

  scanf("%s%s%d",x.xuehao,x.xingming,

          &x.chengji);

  for(i=*length;i>=location+1;i--)

      a[i]=a[i-1];

  a[location]=x;

  (*length)++;

} 

void xianshi(S a[], int length)

{

  int i;

  printf("Display Scores:\n");

  for(i=0;i<length;i++)

  {

      printf("%s %s %d\n",a[i].xuehao,a[i].xingming,

          a[i].chengji);

  }

}

void main()

{

  int menu=1, len=N;

  S b[10];

  xianshicaidan();

  printf("Enter a number to choose opreation:\n");

  scanf("%d",&menu);

  while(menu!=0)

  {

    switch(menu)

    {

      case 1: Initial(b,len);break;

      case 4: xianshi(b,len); break;

      case 3: insert(b,&len);break;

      default: break;

    }

    xianshicaidan();

    printf("Enter a number to choose opreation:\n");

    scanf("%d",&menu);


  }

}