我正在尝试使用我的双链表类建立一个学生列表。我最终将我的学生和 Node 类结合在一起来做到这一点。我意识到有更好的方法来实现这一点，但这是我选择的路径，我正在努力让它发挥作用。当我 push_back 一个节点（学生）时，它调用我的 Node 类，然后调用我的 Record 类，然后调用我的 Course 类。
在我的主函数中为一个节点调用我的构造函数时，我遇到了一个错误，即我传递的所有字符串都没有“（名称，课程，学期）未在此范围内声明”。我意识到这可能是一团糟，但是任何人都可以告诉我为什么这不起作用吗？
#include <iostream>
#include "LinkedList.h"
#include "Stack.h"
#include "Queue.h"
using namespace std;
int main () {
LinkedList* list = new LinkedList();
list->push_back(John, Math34, Summer2012);
return 0;
}
我的 LinkedList 类。我去掉了大部分功能，这样更容易阅读和找到问题的根源。
#ifndef LinkedList_H
#define LinkedList_H
#include "Node.h"
#include <iostream>
using namespace std;
class LinkedList{
public:
LinkedList()
{
front = NULL;
back = NULL;
size = 0;
}
void aCourse(string n, Course* c, string s)
{
if (front == NULL)
return;
Node *temp = front;
for(int i = 0; i < size; i++)
{
if(n == temp->name)
front->addCourse(c, s);
} }
void push_back(string n, Course* c, string s)
{
if (back == NULL)
{
back = new Node(NULL, NULL, n);
front = back;
size++;
back->addCourse(c, s);
return;
}
else {
Node *newnode = new Node(NULL, NULL, n);
newnode->addCourse(c, s);
back->next = newnode;
newnode->prev = back;
back = newnode;
}
#endif
我的节点/学生类：
#ifndef NODE_H
#define NODE_H
#include "Record.h"
#include "Course.h"
class Node
{
public:
Node(Node* n = NULL, Node* p = NULL, string v = NULL)
{
prev = p;
next = n;
name = v;
rec = new Record;
}
void addCourse(Course* c, string sem)
{
rec->addCourse(c, sem);
}
void dropCourse(Course* c)
{
rec->dropCourse(c);
}
Record* getRecord() { return rec; }
void printAllRecords()
{
rec->print();
}
void setStudentScore(Course* c, int score)
{
rec->setCourseScore(c, score);
}
string name;
Record* rec;
Node* next;
Node* prev; //for double linked list
char value;
};
#endif
我的记录类：
#ifndef Record_H
#define Record_H
#include "Course.h"
#include <string>
#include <vector>
#include <iostream>
using namespace std;
class Record
{
public:
Record()
{
courses = new vector<Course*>();
semesters = new vector<string>();
scores = new vector<int>();
}
~Record()
{
delete courses;
delete semesters;
delete scores;
}
void addCourse(Course* c, string sem)
{
courses->push_back(c);
semesters->push_back(sem);
scores->push_back(0);
}
void dropCourse(Course* c)
{
vector<Course*>::iterator it = courses->begin();
vector<string>::iterator it2 = semesters->begin();
while ( it != courses->end() && it2 != semesters->end())
{
if (c == *it)
break;
it++;
it2++;
}
courses->erase(it);
semesters->erase(it2);
}
void setCourseScore(Course* c, int g)
{
vector<Course*>::iterator it = courses->begin();
vector<int>::iterator it2 = scores->begin();
while ( it != courses->end() && it2 != scores->end())
{
if (c == *it)
break;
it++;
it2++;
}
it2 = scores->insert(it2, g);
}
void computeAccGPA()
{
}
vector<Course*>* getCourses() { return courses; }
void print(){
vector<Course*>::iterator it = courses->begin();
vector<string>::iterator it2 = semesters->begin();
vector<int>::iterator it3 = scores->begin();
while ( it != courses->end() && it2 != semesters->end() && it3 != scores->end())
{
(*it)->print();
cout<<" "<<*it2<<" "<<*it3<<endl;
it++;
it2++;
it3++;
}
cout<<endl;
}
private:
vector<Course*>* courses;
vector<string>* semesters;
vector<int>* scores;
};
#endif
我的课程：
#ifndef Course_H
#define Course_H
#include <string>
#include <iostream>
using namespace std;
class Course
{
public:
Course(string n, string f, int c)
{
name = n;
faculty = f;
credit =c;
}
~Course() {}
void print()
{
cout<<name<<" "<<faculty<<" ";//<<c<<" ";
}
private:
string name;
string faculty;
int credit;
};
#endif