程序代码：

#include<iostream>
#include"liuyu.hpp"
using namespace std;
int main(){


 liuyu *L;

 build_(L);

 display_(L);
    return 0;

}

程序代码：

#include<iostream>
class liuyu{
public:
    char data;
    liuyu *next;

};
//建立链表
void build_(liuyu *L)
{
    L=new liuyu;
    L->next=NULL;
   liuyu *p;
   p=new liuyu;
    while(std::cin>>p->data){
p->next=L->next;
L->next=p;
  p=new liuyu;
    }

}

//输出链表
void display_(liuyu *L){
liuyu *p=L;
while(p->next!=NULL){

p=p->next;
std::cout<<p->data<<" ";
}
}