码：
#include<iostream>
using namespace std;
class Complex
{
public:
Complex(double x = 0, double y = 0) :real(x), imag(y) {};
friend istream& operator>>(istream& , Complex& c);
friend ostream& operator<<(ostream& , const Complex& c);
friend Complex operator + (const Complex& c1, const Complex& c2);
private:
double real;
double imag;
};
class Complex_matrix
{
public:
Complex_matrix(int x=0,int y=0);
Complex_matrix(Complex_matrix& p);
friend istream& operator>>(istream&, Complex_matrix&);
friend ostream& operator<<(ostream&, const Complex_matrix&);
friend Complex_matrix operator + (const Complex_matrix& c1, const Complex_matrix& c2);
private:
int m;
int n;
Complex*a;
};
istream& operator>>(istream& input1, Complex& c)
{
input1>> c.real >> c.imag;
return input1;
}
ostream& operator<<(ostream& output1, const Complex& c)
{
output1 << "(" << c.real << "+" << c.imag << "i)" ;
return output1;
}
Complex operator + (const Complex& c1, const Complex& c2)
{
return Complex(c1.real + c2.real, c1.imag + c2.imag);
}
/*................................这是分割线......................................*/
Complex_matrix::Complex_matrix(int x, int y)
{
if (x > 0 && y > 0)
{
a = new Complex[x * y];
m = x;
n = y;
}
}
Complex_matrix::Complex_matrix(Complex_matrix& p)
{
a = new Complex[p.m * p.n];
m = p.m;
n = p.n;
for (int i = 0;i < m;i++)
{
for (int j = 0;j < n;j++)
(a)[(i - 1) * n + j - 1] = (p.a)[(i - 1) * n + j - 1] + (p.a)[(i - 1) * n + j - 1];
}
}
istream& operator>>(istream& input2, Complex_matrix& c)
{
for (int i = 0;i < c.m;i++)
{
for (int j = 0;j < c.n;j++)
{
cout << "请输入第（" << i + 1 << "," << j + 1 << "）位的元素" << endl;
cin >> (c.a)[(i - 1) * c.n + j - 1];
}
}
return input2;
}
ostream& operator<<(ostream& output2, const Complex_matrix& c)
{
for (int i = 0;i < c.m;i++)
{
for (int j = 0;j < c.n;j++)
cout << (c.a)[(i - 1) * c.n + j - 1];
cout << endl;
}
return output2;
}
Complex_matrix operator + (const Complex_matrix& c1, const Complex_matrix& c2)
{
cout << c1;
cout << c2;
Complex_matrix result(3, 2);
return result;
}
int main()
{
Complex_matrix m1(2, 2);
cin >> m1;
cout << m1;
Complex_matrix m2(2, 2);
cin >> m2;
cout << m2;
}
对m1和m2进行赋值操作的时候为什么会出现这样的情况，对第一个对象能够正常赋值，对第二个对象的右上角元素不能进行正常赋值，如图：
