标题: 重载流运算符 [打印本页]
作者: 51黑bing    时间: 2016-3-22 20:02
标题: 重载流运算符
本帖最后由 51黑bing 于 2016-3-22 20:03 编辑

#pragma once

#include "../inc/Matrix.h"
#include<iostream>

using namespace std;

class Matrix
{
public:
friend ostream& operator <<(ostream & out, Matrix& m);
friend istream& operator >>(istream & in, Matrix& m);
private:
int array[9];
};

-------------------------------------------------------------------

#include "../inc/Matrix.h"

---------------------------------------------------------------------------------------------------------
  1. #include <iostream>
  2. #include "../inc/Matrix.h"

  4. using namespace std;

  6. //定义全局函数，并且声明为Matrix的友元
  7. ostream& operator <<(ostream & out, Matrix& m)
  8. {
  9. cout << "数组的数据为：" << endl;
  10. int i = 0;
  11. for (; i < 3; i++)
  12. {
  13. out << m.array[i] << "  ";
  14. }
  15. cout << endl;
  16. for (i = 3; i < 6; i++)
  17. {
  18. out << m.array[i] << "  ";
  19. }
  20. cout << endl;
  21. for (i = 6; i < 9; i++)
  22. {
  23. out << m.array[i] << "  ";
  24. }
  25. cout << endl;
  26. return out;
  27. }
  28. istream& operator >>(istream & in, Matrix& m)
  29. {
  30. cout << "请输入数组的数据，每输入一个请按回车按键确认。" << endl;
  31. for (int i = 0; i < 9; i++)
  32. {
  33. in >> m.array[i];
  34. }
  35. return in;
  36. }

  38. int main()
  39. {
  40. Matrix m;
  41. cin >> m;
  42. cout << m;
  43. return 0;
  44. }
复制代码






---------------------------------------------------------------------------------------------------------
结果：







欢迎光临 (http://www.51hei.com/bbs/) Powered by Discuz! X3.1