#include<iostream>
#include<fstream>
#include<string>
using namespace std;
struct Student
{
    char name[10];//姓名
    char sex[10];//性别
    char id[10];//学号
    char phone[12];//电话
    Student *next;
};
void List::read()
{
     Student *p;
     p=new Student;
 ifstream inmyfile("tongxue.txt");
 if(!inmyfile)
 {
               cout<<"文件打开失败"<<endl;
               }
                while(inmyfile>>p->name>>p->sex>>p->id>>p->phone)
                {
                             Student *a=head;
                                head=p;
                                head->next=a;
                                                                                    
                                }
                               }
                             

哦，程序有点长，没有粘上全部

太感谢啦！