[Chap10][object]:Practise the usage of object

Author: inpeterfomax

10_chap_class/move/.move.h.swp

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+#include"move.h"
+#include<iostream>
+#include<cstring>
+
+using namespace std;
+
+Move :: Move (double a, double b)
+{
+    x = a;
+    y = b;
+}
+
+void Move :: showmove () const
+{
+    cout << "x" << x << "y" << y << endl;
+}
+
+Move Move:: add (const Move & m)
+{
+    x = x + m.x;
+    y = y + m.y;
+
+    return *this;
+}
+
+void Move :: reset (double a, double b)
+{
+    x = a;
+    y = b;
+}
+

10_chap_class/move/.test.cpp.swp

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+#ifndef __MOVE_H__
+#define __MOVE_H_
+
+class Move
+{
+private:
+    double x;
+    double y;
+public:
+    Move (double a = 0, double b = 0);
+    void showmove ()const;
+    Move add (const Move & m);
+    void reset (double a = 0, double b = 0);
+};
+
+
+#endif

10_chap_class/move/move.cpp

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+#include "move.h"
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+   Move m1;
+   //Move m2 = Move(10,20);
+   //Move m3 = Move(30,40);
+
+   Move* m2 = new Move(10,20);
+   Move* m3 = new Move(30,40);
+
+   //m3.showmove();
+   m3->showmove();
+   cout << "-----------------"  << endl;
+   //m3.add(m2);
+   m3->add(*m2);
+   //m3.showmove();
+   m3->showmove();
+   cout << "-----------------"  << endl;
+   //m2.showmove();
+   m2->showmove();
+
+    cout << "delete ----------------"  << endl;
+    delete(m2);
+    delete(m3);
+
+   return 0;
+}