#include "matrix.h"

int main(){

    vector<int> a;

    int col;



    cout<<"输入矩阵列数"<<endl;

    cin>>col;

    cout<<"输入矩阵"<<endl;

    a = CMatrix<int>::input_matrix();



    CMatrix<int> m(3,a);

    cout<<"显示矩阵m"<<endl;

    m.show();



    CMatrix<int> n;

    cout<<"从文件读取矩阵"<<endl;

    n.InFile("matrix.txt");

    cout<<"显示矩阵n"<<endl;

    n.show();





    cout<<"矩阵m数乘，输入数值"<<endl;

    int k;

    cin>>k;

    CMatrix<int> z = m*k;

    z.show();



    cout<<"矩阵加法m+n"<<endl;

    z = m+n;

    z.show();

    cout<<"矩阵减法m-n"<<endl;

    z = m-n;

    z.show();



    return 0;

}

#include <vector>

#include <fstream>

#include <iostream>

using namespace std;

template<class T> class CMatrix{

public:

    ~CMatrix(){}

    CMatrix(){}

    //构造函数

    CMatrix(int c,vector<T> argV){

        column = c;

        //清空容器

        vector<T>().swap(v);

        //赋值容器

        for(int i=0; i<argV.size(); i++){

            v.push_back(argV.at(i));

        }

    }

    //显示矩阵

    void show(){

        puts("");

        for(int i=0; i<v.size(); i++){

            printf("%.2lf ",(double)v.at(i));

            if(i%column == column-1){//换行显示

                puts("");

            }

        }

    }

    //从文件读取

    void InFile(char *fileName){//fisrt row is column number,second row is value

        ifstream iFile(fileName,ios::in);

        if(!iFile.is_open()){

            cerr<<"从文件读取矩阵失败"<<endl;

            return;

        }

        vector<T>().swap(v);

        char ch[1024] = {0};

        iFile.getline(ch,sizeof(ch));

        sscanf(ch,"%d",&column);

        T value;



        while(iFile>>value){

            v.push_back(value);

        }

        iFile.close();

    }

    //重载运算符*

    CMatrix operator*(const int &a)const{

        vector<T> vv;

        //运算结果放入新的容器

        for(int i=0; i<v.size(); i++){

            vv.push_back(v.at(i)*a);

        }

        //重新制作一个矩阵类

        CMatrix m(column, vv);

        return m;

    }

    //重载运算符+

    CMatrix operator+(const CMatrix &a)const{

        vector<T> vv;

        for(int i=0; i<v.size(); i++){

            vv.push_back(v.at(i)+a.v.at(i));

        }

        CMatrix m(column, vv);

        return m;

    }

    //重载运算符-

    CMatrix operator-(const CMatrix &a)const{

        vector<T> vv;

        for(int i=0; i<v.size(); i++){

            vv.push_back(v.at(i)-a.v.at(i));

        }

        CMatrix m(column, vv);

        return m;

    }

    //用户输入获取矩阵容器

    static vector<T> input_matrix(){

        T n;

        vector<T> vv;

        while(cin>>n){

            if(cin.get()=='\n'){

                vv.push_back(n);

                break;

            }

            vv.push_back(n);

        }

        return vv;

    }

    //成员变量

    vector<T> v;//矩阵值

    int column;//矩阵列数



};

typedef CMatrix<int> matrix;//自定义类型

typedef CMatrix<float> matrix_f;//自定义类型