顺序表（C++实现）

实现顺序表的创建、查找、输入、删除等方法

---

#include <iostream>
using namespace std ;
int Error = 0 ;

#define MAXLISTLEN 100
int ListLen = 0 ;
int SeqList [MAXLISTLEN + 1] ;
//顺序表查找
int SearchSeqList (int i)
{
    if ((i > ListLen) || (i < 1) || (ListLen == 0))
    {
        Error = -1 ;
        return (-1) ;    //查找出错返回
    }
    else
    {
        return SeqList [i] ;    //返回指定位置的元素值
    }
}
//顺序表的插入
void InsertSeqList (int NewItem , int i)
{
    int j ;

    if ((i > ListLen + 1) || (i < 1) || (ListLen == MAXLISTLEN))
    {
        Error = -2 ;    //插入出错返回
        cout << "插入出错啦！！！";
    }
    else
    {
        for (j = ListLen ; j >= i ; j -- )    //从后往前移
        {
            SeqList [j+1] = SeqList [j] ;
        }
        SeqList [i] = NewItem ;        //插入新元素
        ListLen = ListLen + 1 ;        //表长加一
    }
}
//顺序表指定位置数据的删除
void DeleteSeqList (int i)
{
    int j ;

    if ((i > ListLen)||(i < 1) || (ListLen == 0))
    {
        Error = -3 ;    //删除出错返回
        cout << "删除出错啦！！！" ;
    }
    else
    {
        for (j = i ; j < ListLen ; j ++ )    //从前往后移
        {
            SeqList [j] = SeqList [j+1] ;
        }
        ListLen = ListLen - 1 ;        //表长减一
    }
}
//顺序表显示
void ShowSeqList ()
{
    int i ;

    cout << "The list : " ;
    for (i = 1 ; i <= ListLen ; i ++ )
    {
        cout <<SeqList[i]<<" " ;    //逐个显示数据元素
    }
    cout << endl ;            //换行

}
//主函数
int main (int argc , char * argv[])
{
int r[MAXLISTLEN] , i , SearchPos , NewPos , NewItem , DelPos ;

cout << "Please input the ListLen : " ;
cin >> ListLen ;    //输入样本数目（表长）
//创建顺序表
for (i = 1 ; i <= ListLen ; i++)
{
    cout << "Please input No." << i <<"Item : " ;
    cin >> SeqList[i] ;
}
ShowSeqList () ;    //显示顺序表

cout << "Please input the search pos : " ;
cin >> SearchPos ;    //输入查找位置

cout << "Your Searched Item is : " <<SearchSeqList (SearchPos) << endl ;    //输出查找的数据元素值

cout << "Please input the NewPos where you want to insert : " ;
cin >> NewPos ;        //插入位置输入
cout << "Please input the NewItem what you want to insert : " ;
cin >> NewItem ;    //插入元素输入
InsertSeqList (NewItem , NewPos) ;    //新数据插入顺序表中
cout << "After insert : " ;
ShowSeqList () ;        //插入数据后，输出新的顺序表

cout << "Please input the DelPos where you want to delete : " ;
cin >> DelPos ;        //输入删除元素位置
DeleteSeqList (DelPos) ;    //按位置删除数据
cout << "After delete : " ;
ShowSeqList () ;

if (Error < 0) cout <<"Error" << Error << endl ;

return 0 ;
}