如何使参数构造函数初始化导致平方矩阵的行和列

我在制作一个参数化构造函数来初始化导致平方矩阵的行和列时遇到了问题。到目前为止，我已经将行和列初始化为2，并使用new运算符动态分配内存。

这是我到目前为止的代码：

#include<iostream>
using namespace std;
class matrix {
    int row, column;
    matrix()
    {
        row = 2;
        column = 2;
    }
    int **array;
        array = new int*[row];
        for(int i=0;i<row;i++){
           array[i]=new int[column];
        }
};

我要做的问题是：

创建一个名为Matrix的类，该类包含整数形式的"row"、"col"和一个整数称为"数组"的指针。在类中包含以下规范的函数。使用new和delete运算符根据行和列值。

i） 默认构造函数将行和列初始化为2。

ii）一个参数构造函数，用于初始化导致
的行和列方形矩阵。

编辑：

我已经完成了代码，在这里。它正确吗：

 #include<iostream>
 #include<iomanip>
 using namespace std;
 //Create a class sqMatrix
 class sqMatrix
 {
    private:
       int **matrix;
       int dim;
    public:
       sqMatrix(int=5);
       sqMatrix(const sqMatrix&);
       ~sqMatrix();
       sqMatrix operator+(const sqMatrix&);
       sqMatrix operator-(const sqMatrix&);
       sqMatrix operator*(int);
       sqMatrix operator*(const sqMatrix&);
       sqMatrix operator^(const sqMatrix&);
       friend istream& operator>>(istream&,sqMatrix&);
       friend ostream& operator<<(ostream&,sqMatrix);
 };
 //Destructor
 sqMatrix::~sqMatrix()
 {
    for(int i=0;i<sqMatrix::dim;i++)
    {
       delete[] (sqMatrix::matrix)[i];
    }
 }
 //Parameterized constructor
 sqMatrix::sqMatrix(int dim)
 {
    sqMatrix::matrix=new int*[dim];
    for(int j=0;j<dim;j++)
    {
       sqMatrix::matrix[j]=new int[dim];
    }
    for(int i=0;i<dim;i++)
    {
       for(int j=0;j<dim;j++)
          sqMatrix::matrix[i][j]=0;
    }
    sqMatrix::dim=dim;
 }
 //Copy constructor
 sqMatrix::sqMatrix(const sqMatrix &mat)
 {
    sqMatrix::matrix=new int*[mat.dim];
    for(int j=0;j<mat.dim;j++)
    {
       sqMatrix::matrix[j]=new int[mat.dim];
    }
    for(int i=0;i<mat.dim;i++)
    {
       for(int j=0;j<mat.dim;j++)
          sqMatrix::matrix[i][j]=mat.matrix[i][j];
    }
    sqMatrix::dim=mat.dim;
 }
 //This function is used to perform the addition operation
 sqMatrix sqMatrix::operator+(const sqMatrix &mat)
 {
    sqMatrix tmp(mat.dim);
    for(int i=0;i<mat.dim;i++)
    {
       for(int j=0;j<mat.dim;j++)
       {
          tmp.matrix[i][j]=sqMatrix::matrix[i][j]+mat.matrix[i][j];
       }
    }
    return tmp;
 }
 //This function is used to perform the subtraction operation
 sqMatrix sqMatrix::operator-(const sqMatrix &mat)
 {
    sqMatrix tmp(mat.dim);
    for(int i=0;i<mat.dim;i++)
    {
       for(int j=0;j<mat.dim;j++)
       {
          tmp.matrix[i][j]=sqMatrix::matrix[i][j]-mat.matrix[i][j];
       }
    }
    return tmp;
 }
 //This function is used to perform the multiplication operation with a scalar value
 sqMatrix sqMatrix::operator*(int c)
 {
    sqMatrix tmp(sqMatrix::dim);
    for(int i=0;i<sqMatrix::dim;i++)
    {
       for(int j=0;j<sqMatrix::dim;j++)
          tmp.matrix[i][j] = sqMatrix::matrix[i][j] * c;
    }
    return tmp;
 }
 //This function is used to perform the multiplication operation between two square matrices
 sqMatrix sqMatrix::operator*(const sqMatrix &mat)
 {
    sqMatrix tmp(sqMatrix::dim);
    for(int i=0;i<sqMatrix::dim;i++)
    {
       for(int j=0;j<sqMatrix::dim;j++)
       {
          tmp.matrix[i][j]=0;
          for(int k=0;k<sqMatrix::dim;k++)
          {
             tmp.matrix[i][j]=tmp.matrix[i][j]+sqMatrix::matrix[i][k]*mat.matrix[k][j];
          }
       }
    }
    return tmp;
 }
 //This function is used to get transpose of a square matrix
 sqMatrix sqMatrix::operator^(const sqMatrix &mat)
 {
    for(int i=0;i<sqMatrix::dim;i++)
    {
       for(int j=0;j<sqMatrix::dim;j++)
          mat.matrix[i][j]=sqMatrix::matrix[j][i];
    }
    return mat;
 }
 //Overload >>(cin) operator which takes a square matrix as input
 istream& operator>>(istream &s,sqMatrix &mat)
 {
    cout<<"Enter "<<mat.dim*mat.dim<<" Elements :-"<<endl;
    for(int i=0;i<mat.dim;i++)
    {
       for(int j=0;j<mat.dim;j++)
       {
          cout<<"Element at row "<<i+1<<" col "<<j+1<<" : ";
          s>>mat.matrix[i][j];
       }
    }
 }
 //Overload <<(cout) operator which displays a square matrix
 ostream& operator<<(ostream &s,sqMatrix mat)
 {
    for(int i=0;i<mat.dim;i++)
    {
       for(int j=0;j<mat.dim;j++)
       {
          s<<setw(10);
          s<<mat.matrix[i][j];
       }
       cout<<"n";
    }
 }
 int main()
 {
    int dim;
    cout<<"Enter dimension:";
    cin>>dim;
    sqMatrix test(dim);
    cin>>test;
    cout<<"Original Matrix:"<<endl;
    cout<<test;
    sqMatrix cpy(test);
    cout<<"Copy of the orginal Matrix:"<<endl;
    cout<<cpy;
    sqMatrix test1(dim);
    cout<<"Enter another matrix to add with the original:n";
    cin>>test1;
    cout<<"Result of addition:n";
    sqMatrix cpy1=test+test1;
    cout<<cpy1;
    sqMatrix test2(dim);
    cout<<"Enter another matrix to subtract with the original:n";
    cin>>test2;
    cout<<"Result of subtraction:n";
    sqMatrix cpy2=test-test2;
    cout<<cpy2;
    int sc;
    cout<<"Enter a scalar value:";
    cin>>sc;
    cout<<"multiplying with scalar value with the original: "<<endl<<endl;
    sqMatrix cpy3=test*sc;
    cout<<cpy3;
    sqMatrix test3(dim);
    cout<<"Enter another matrix to multiply with the original:n";
    cin>>test3;
    cout<<"Result of multiplication:n";
    sqMatrix cpy4=test*test3;
    cout<<cpy4;
    sqMatrix test4(dim);
    cout<<"nTranspose of original matrix:n";
    sqMatrix cpy5=test^test4;
    cout<<cpy5;
    return 0;
 }