- node.h
#pragma once
//创建模板
template <class T>
class Node
{
public:
T t;//数据
Node *pNext;//指针域
}; - list.h
#pragma once
#include "Node.h"
#include <iostream>
using namespace std; template <class T>
class List
{
public:
Node<T> *pHead; public:
List();
void add(T t);//尾部插入
void show();//显示
Node<T> * find(T t);//查找
void change(Node<T> *p, T newt);//修改
int getnum();//获取个数
bool deletet(T t);
void sort();
void deletesame();//删除相同的元素
bool clear();
void rev(); void insert(T oldt, T newt);
void merge(List & list); ~List();
}; - list.cpp
#include "List.h" template <class T>
List<T>::List()
{
this->pHead = nullptr;//设置空节点
cout << "链表创建" << endl; } template <class T>
List<T>::~List()
{
cout << "链表销毁" << endl; }
template <class T>
void List<T>::add(T t)
{
Node<T> *pnew = new Node<T>;//分配节点
pnew->t = t;//赋值
pnew->pNext = nullptr; if (pHead==nullptr)
{ this->pHead = pnew;//头结点 }
else
{
Node<T> *p = pHead;//获取头结点位置
while (p->pNext!=nullptr)//循环到尾部
{
p = p->pNext; }
p->pNext = pnew; } } template <class T>
void List<T>::show()
{ Node<T> *p = pHead;//获取头结点位置
while (p!= nullptr)//循环到尾部
{ cout << p->t << " ";
p = p->pNext; }
cout << endl; } template <class T>
Node<T> * List<T>::find(T t)
{
Node<T> *p = pHead;//获取头结点位置
while (p != nullptr)//循环到尾部
{
if (p->t==t)
{
return p;
} p = p->pNext; }
return nullptr; } template <class T>
void List<T>::change(Node<T> *p, T newt)
{
if (p==nullptr)
{
return;
} p->t = newt;
} template <class T>
int List<T>::getnum()
{
int i = ;
Node<T> *p = pHead;//获取头结点位置
while (p != nullptr)//循环到尾部
{ i++;
p = p->pNext; } return i; }
template <class T>
bool List<T>::deletet(T t)
{ Node<T> *p = this->find(t);
if (p==nullptr)
{
return false;
}
else
{ if (p==pHead)//头结点
{
pHead = p->pNext;
delete p;
}
else
{
Node<T> *p1, *p2;
p1 = pHead;
p2 = p1->pNext;
while (p2!=p)//删除一个节点，获取前一个节点
{
p1 = p2;
p2 = p2->pNext; } p1->pNext = p2->pNext;//跳过p2
delete p2; }
return true;
}
} template <class T>
void List<T>::sort()
{
for (Node<T> *p1 = pHead; p1 != NULL;p1=p1->pNext)
{
for (Node<T> *p2 = pHead; p2!= NULL; p2 = p2->pNext)
{
if (p1->t < p2->t)
{
T temp;
temp = p1->t;
p1->t = p2->t;
p2 -> t = temp; }
}
}
} template<class T>
void List<T>::deletesame()//重新生成
{ Node<T> *p1, *p2;
p1 = pHead->pNext;
p2 = pHead;
while (p1!=nullptr)
{
if (p1->t==p2->t)
{
//cout << "=";
p2->pNext = p1->pNext;
delete p1;
p1 = p2->pNext;
}
else
{
p2 =p1;
p1 = p1->pNext; }
}
} template<class T>
bool List<T>::clear()
{
if (pHead ==nullptr)
{
return false;
} Node<T> *p1, *p2;
p1 = pHead->pNext;
while (p1!=nullptr)
{
p2 = p1->pNext;
delete p1;
p1 = p2;
}
delete pHead;
pHead = nullptr; return true; }
template<class T>
//递归
void List<T>::rev()
{
if (pHead==nullptr || pHead->pNext==nullptr)
{
return;
}
else
{
Node<T> *p1, *p2, *p3;
p1 = pHead;
p2 = p1->pNext; while (p2!=nullptr)
{
p3 = p2->pNext;
p2->pNext = p1; p1 = p2;
p2 = p3; }
pHead->pNext= nullptr;
pHead = p1; } }
template<class T>
void List<T>::insert(T oldt, T newt)
{ Node<T> *p = find(oldt);
if (p!=nullptr)
{ Node<T> *p1, *p2;
p1 = pHead;
p2 = p1->pNext;
while (p2 != p)
{
p1 = p2;
p2 = p2->pNext; }
Node<T> *pnew = new Node<T>;
pnew->t = newt;
pnew->pNext = p2;
p1->pNext = pnew;
}
} template<class T>
void List<T>::merge(List & list)
{
Node<T> *p = pHead;//获取头结点位置
while (p->pNext != nullptr)//循环到尾部
{ p = p->pNext; }
p->pNext = list.pHead;
} - main.cpp
#include "List.h" template <class T>
List<T>::List()
{
this->pHead = nullptr;//设置空节点
cout << "链表创建" << endl; } template <class T>
List<T>::~List()
{
cout << "链表销毁" << endl; }
template <class T>
void List<T>::add(T t)
{
Node<T> *pnew = new Node<T>;//分配节点
pnew->t = t;//赋值
pnew->pNext = nullptr; if (pHead==nullptr)
{ this->pHead = pnew;//头结点 }
else
{
Node<T> *p = pHead;//获取头结点位置
while (p->pNext!=nullptr)//循环到尾部
{
p = p->pNext; }
p->pNext = pnew; } } template <class T>
void List<T>::show()
{ Node<T> *p = pHead;//获取头结点位置
while (p!= nullptr)//循环到尾部
{ cout << p->t << " ";
p = p->pNext; }
cout << endl; } template <class T>
Node<T> * List<T>::find(T t)
{
Node<T> *p = pHead;//获取头结点位置
while (p != nullptr)//循环到尾部
{
if (p->t==t)
{
return p;
} p = p->pNext; }
return nullptr; } template <class T>
void List<T>::change(Node<T> *p, T newt)
{
if (p==nullptr)
{
return;
} p->t = newt;
} template <class T>
int List<T>::getnum()
{
int i = ;
Node<T> *p = pHead;//获取头结点位置
while (p != nullptr)//循环到尾部
{ i++;
p = p->pNext; } return i; }
template <class T>
bool List<T>::deletet(T t)
{ Node<T> *p = this->find(t);
if (p==nullptr)
{
return false;
}
else
{ if (p==pHead)//头结点
{
pHead = p->pNext;
delete p;
}
else
{
Node<T> *p1, *p2;
p1 = pHead;
p2 = p1->pNext;
while (p2!=p)//删除一个节点，获取前一个节点
{
p1 = p2;
p2 = p2->pNext; } p1->pNext = p2->pNext;//跳过p2
delete p2; }
return true;
}
} template <class T>
void List<T>::sort()
{
for (Node<T> *p1 = pHead; p1 != NULL;p1=p1->pNext)
{
for (Node<T> *p2 = pHead; p2!= NULL; p2 = p2->pNext)
{
if (p1->t < p2->t)
{
T temp;
temp = p1->t;
p1->t = p2->t;
p2 -> t = temp; }
}
}
} template<class T>
void List<T>::deletesame()//重新生成
{ Node<T> *p1, *p2;
p1 = pHead->pNext;
p2 = pHead;
while (p1!=nullptr)
{
if (p1->t==p2->t)
{
//cout << "=";
p2->pNext = p1->pNext;
delete p1;
p1 = p2->pNext;
}
else
{
p2 =p1;
p1 = p1->pNext; }
}
} template<class T>
bool List<T>::clear()
{
if (pHead ==nullptr)
{
return false;
} Node<T> *p1, *p2;
p1 = pHead->pNext;
while (p1!=nullptr)
{
p2 = p1->pNext;
delete p1;
p1 = p2;
}
delete pHead;
pHead = nullptr; return true; }
template<class T>
//递归
void List<T>::rev()
{
if (pHead==nullptr || pHead->pNext==nullptr)
{
return;
}
else
{
Node<T> *p1, *p2, *p3;
p1 = pHead;
p2 = p1->pNext; while (p2!=nullptr)
{
p3 = p2->pNext;
p2->pNext = p1; p1 = p2;
p2 = p3; }
pHead->pNext= nullptr;
pHead = p1; } }
template<class T>
void List<T>::insert(T oldt, T newt)
{ Node<T> *p = find(oldt);
if (p!=nullptr)
{ Node<T> *p1, *p2;
p1 = pHead;
p2 = p1->pNext;
while (p2 != p)
{
p1 = p2;
p2 = p2->pNext; }
Node<T> *pnew = new Node<T>;
pnew->t = newt;
pnew->pNext = p2;
p1->pNext = pnew;
}
} template<class T>
void List<T>::merge(List & list)
{
Node<T> *p = pHead;//获取头结点位置
while (p->pNext != nullptr)//循环到尾部
{ p = p->pNext; }
p->pNext = list.pHead;
}
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