OOP HomeWork

oop_hw5/hw4/code/main.cpp

@@ -0,0 +1,72 @@
+#pragma once
+#include <iostream>
+#include <cstring>
+
+using std::cin;
+using std::cout;
+using std::endl;
+
+class A
+{
+public:
+    A(int num) :data1(num) {}
+    virtual ~A() {
+        cout << " Destory A" << endl;
+    }
+    void f() const {
+        cout << " Excute A::f() ";
+        cout << " Data1=" << data1 << endl;
+    }
+    void g()
+    {
+        cout << " Excute A::g() " << endl;
+    }
+    A& operator=(A& x) {
+        data1 = x.data1;
+        return *this;
+    }
+protected:
+    int data1;
+};
+
+class B : public A
+{
+public:
+    B(int num1, int num2) :A(num1), data2(num2) {}
+    virtual ~B() {
+        cout << " Destory B" << endl;
+    }
+    void f() const {
+        cout << " Excute B::f() ";
+        cout << " Data1=" << data1;
+        cout << " Data2=" << data2 << endl;
+    }
+    void f(int n) const {
+        cout << " Excute B::f(int) ";
+        cout << " n=" << n;
+        cout << " Data1=" << data1;
+        cout << " Data2=" << data2 << endl;
+    }
+    void h() {
+        cout << " Excute B::h() " << endl;
+    }
+    B& operator=(B& x) {
+        data2 = x.data2;
+        //data1 = x.data1;
+        this->A::operator=(x);
+        return *this;
+    }
+private:
+    int data2;
+};
+
+int main() {
+        B b(1, 2);
+        A* p = new B(1, 2);
+        b.f();
+        b.g();
+        b.f(3);
+        b.h();
+        delete p;
+    return 0;
+}