/*
C++作业
1.    建立一个试题类（shiti）
包括成员：题目，分值，批改（纯虚函数），正确答案
2.    该类派生出 （1）判断题 类
  （2）单项选择题 类
（3）多项项选择题 类
    后两种添加新成员选项（字符串数组）
    以上三个类均覆盖"批改"
    批改要求：
1．    其中判断题和单项选择题答对得所有分，答错不得分
2．    多项选择题全部正确得所有分，部分正确得一半分，答错不得分
3．使用以上类生成两个应用程序
1．    教师用版：1添加试题 2生成试卷和答案
2．    学生用版：1续入试题 2学生答题并计算得分
选择题的"选项"，使用数组保存
clrscr();
*/
#include <iostream>
#include <fstream>
#include <iomanip>
using namespace std;
class st
{
protected:
    char tm[200];
    double fs;
    char da[10];
public:
    st(char *ntm, double nfs,char *nda)
    {
        strcpy(tm,ntm);
        fs=nfs;
        strcpy(da,nda);
    }
//    virtual double pg() = 0;
//     void shuchu()
//    {
    //    cout<<"题目："<<tm<<setw(20)<<"("<<fs<<")"<<endl;
    //}
    virtual void shengcheng(ofstream &f)
    {
        f<<tm<<"\t"<<"("<<fs<<")"<<"\t"<<da<<endl;
    }
};
class pdt : public st
{
public:
    pdt(char *tm,double fs, char *da):st(tm,fs,da)
    {}
    /*    double pg()
    {

    }*/
};
class dx : public st
{
private:
    char xx[50];
public:
    dx(char *tm,double fs,char *da,char *nxx):st(tm,fs,da)
    {
        strcpy(xx,nxx);
    }
    //void shuchu()
//    {
    //    cout<<"题目："<<tm<<setw(20)<<"("<<fs<<")"<<endl;
    //    cout<<xx<<endl;
//}
    void shengcheng(ofstream &f)
    {
        f<<tm<<"\t"<<"("<<fs<<")"<<"\t"<<da<<endl;
        f<<xx<<endl;
    }
};
class dxt : public st
{
private:
    char xx[50];
public:
    dxt(char *tm,double fs,char *da,char *nxx):st(tm,fs,da)
    {
        strcpy(xx,nxx);
    }
//    void shuchu()
//    {
//        cout<<"题目："<<tm<<setw(20)<<"("<<fs<<")"<<endl;
//        cout<<xx<<endl;
//    }
    void shengcheng(ofstream &f)
    {
        f<<tm<<"\t"<<"("<<fs<<")"<<"\t"<<da<<endl;
        f<<xx<<endl;
    }
};
int sum=0;
st *tmk[200];

void tianjia()
{
    char tm[200],da[10],xx[50];
    double fs;
    int i;
    do
    {
    cout<<"请选择添加题目类型："<<endl;
    cout<<"1， 判断题  2，单选题  3， 多选题  4,输入完毕！（选择1~4）"<<endl;
    cin>>i;
    if (i==4)
        break;
    else if(i<0||i>4)
        cout<<"选择范围出错！"<<endl;
    else
    {
    cout<<"输入题目：";
    cin>>tm;
    cout<<"输入分数：";
    cin>>fs;
    cout<<"输入答案：";
    cin>>da;
    switch(i)
    {
    case 1:
        {
            tmk[sum]=new pdt(tm,fs,da);
            break;
        }
    case 2:
        {
            cout<<"输入选项："<<endl;
            cin>>xx;
            tmk[sum]=new dx(tm,fs,da,xx);
            break;
        }
    case 3:
        {
            cout<<"输入选项："<<endl;
            cin>>xx;
            tmk[sum]=new dxt(tm,fs,da,xx);
            break;
        }
        sum++;
        cout<<"添加成功！"<<endl;
        break;
    }
    }
    }while(true);    
}

void shengcheng()
{
    int i;
    ofstream f("tmk.txt");
    for( i=0;i<sum;i++)
    {
       tmk[i]->shengcheng(f);
    }
    f.close();
//    for (i=0;i<sum;i++)
        //tmk[i]->st::shuchu();
}


void main()
{
    int i,j;
    cout<<"欢迎使用系统！！"<<endl;
    cout<<"请选择用户类型：（请输入(1~3)：1，教师系统 ； 2，学生系统; 3,退出系统）"<<endl;
    do{
        cin>>i;
        if(i<0||i>3)
            cout<<"选择超出范围！"<<endl;
        switch(i)
        {
            case 1:
                {
                do
                {
                cout<<"欢迎进入教师系统"<<endl;
                cout<<"1，添加题目    2，生成试卷   3,返回上级 "<<endl;
                cin>>j;
                if(j==3)
                    return;
                if (j<0||j>3)
                cout<<"选择超出范围！"<<endl;
                else
                {
                switch(j)
                {
                case 1:
                    {
                    tianjia();
                    break;
                    }
                case 2:
                    {
                    shengcheng();
                    break;
                    }
                case 3:
                    {
                    cout<<"退出系统！"<<endl;
                    return;
                    }
                }
                }
                }while(true);
                }

            case 2:
            default:
                return;
        }
    }while(true);

}