矩阵转置

 1 #include <iostream.h>
 2 template<class T>
 3 class Matrix
 4 {
 5 public:
 6     Matrix(int r=0,int c=0);
 7     Matrix(Matrix<T> &m);
 8     ~Matrix()
 9     {
10         delete []melem;
11     }
12     void input();
13     void print();
14     T & operator ()(int i,int j);
15     void transmat(Matrix<T> &,Matrix <T> &);
16 private:
17     int rows,cols;
18     T *melem;
19 };
20 template <class T>
21 Matrix<T>::Matrix(int r,int c)
22 {
23     rows=r;
24     cols=c;
25     melem=new T[r*c];
26 }
27 template <class T>
28 Matrix<T>::Matrix(Matrix<T> &m)               //构造函数
29 {
30     rows =m.rows;
31     cols =m.cols;
32     melem =new T[rows*cols];
33     for(int i =0 ; i<rows *cols ; i++)
34         melem [i]=m.melem[i];
35 }
36 template<class T>
37 T &Matrix <T> ::operator () (int i,int j)                 //取元素运算
38 {
39     return melem [(i-1)*cols +j-1];
40 }
41 
42 template<class T>
43 void Matrix<T>::input()
44 {
45     for(int i=0;i<cols*rows ;i++)
46         cin>>melem [i];
47 }
48 template<class T>
49 void Matrix<T>::print()
50 {
51     for (int i=0;i<rows*cols;i++)
52     {
53         if(i%cols==0)
54             cout<<endl;
55         cout<<melem [i]<<‘\t‘;
56     }
57        
58 }
59 template <class T>
60 void Matrix<T>::transmat(Matrix<T>&a, Matrix <T> &b)
61 {
62     int i,j;
63     for(i=1;i<=a.rows;i++)
64         for(j=1;j<=a.cols;j++)
65         {
66             b(j,i)=a(i,j);
67         }
68 }
69 int main()
70 {
71     Matrix<int > A(3,2) ,B(2,3) ;
72     A.input();
73     cout<<"A:";
74     A.print();
75     A.transmat(A,B);
76     cout<<endl<<"B:";
77     B.print();
78     cout<<endl;
79     return 0;
80 }