studentseqlist.cpp

来自「数据结构清华大学出版社出版 有书上例子的源代码」· C++ 代码 · 共 101 行

//---------------------------------------------------------------------------


#pragma hdrstop

#include "StudentSeqList.h"   //引入顺序表的类


//---------------------------------------------------------------------------
/*
 *  有参构造函数SeqList
 */
template <class T > SeqList<T>:: SeqList(T a[ ], int n)
{
  int i;
  if (n>MaxSize) throw "参数非法";
  for (i=0; i<n; i++)
    data[i]=a[i];
  length=n;
}

/*
 *  插入函数Insert，将x插入到顺序表第i个位置
 */
template <class T >  void SeqList<T>::Insert(int i, T x)
{
  int j;
  if (length>=MaxSize) throw "上溢";
  if (i<1 || i>length+1) throw "位置错误";
  for (j=length; j>=i; j--)
  data[j]=data[j-1];   //注意第j个元素存在数组下标为j-1处
  data[i-1]=x;
  length++;
}

/*
 *  删除函数Delete，删除顺序表中第i个元素
 */
template <class T > T SeqList<T>::Delete(int i)
{
  int j;
  if (length==0 ) throw "下溢";
  if (i<1 || i>length) throw "位置错误";
  T x=data[i-1];
  for (j=i; j<length; j++)
    data[j-1]=data[j];   //注意此处j已经是元素所在的数组下标
  length--;
  return x;

}

/*
 *  遍历输出函数PrintList，输出所有顺序表中元素
 */

template <class T >  void SeqList<T>::PrintList( )
{
 int i;
 for (i=0; i<length; i++)
  {
    cout << "学号：" << data[i].num << "\n";
    cout << "姓名：" << data[i].name << "\n";
    cout << "性别：" << data[i].sex << "\n";
    cout << "出生日期：" << data[i].born << "\n";
    cout << "政治面貌：" << data[i].p << "\n";
    cout << "住址：" << data[i].addr << "\n";
  }
}

/*
 *  输出函数PrintStudent，输出顺序表中元素x
 */
template <class T > void SeqList<T>::PrintStudent(T x)
{
  cout << "学号：" << x.num << "\n";
  cout << "姓名：" << x.name << "\n";
  cout << "性别：" << x.sex << "\n";
  cout << "出生日期：" << x.born << "\n";
  cout << "政治面貌：" << x.p << "\n";
  cout << "住址：" << x.addr << "\n";
}

//取函数Get，从顺序表中返回第i个元素，并作为返回值返回
template <class T> T SeqList<T>::Get(int i)
{
  if (i>=0 && i<=length-1)
  return data[i];
  else
   {
	  T stu;
	 
     return stu;
   }
}