OOP HomeWork

oop_hw6/hw5/main.cpp

@@ -0,0 +1,86 @@
+#include <iostream>
+using namespace std;
+class CallBackObject;
+class Server
+{
+public:
+    Server(int size) :len(size)
+    {
+        data = new int [len];//1
+        for (int i = 0;i < len;++i)
+            data[i] = i + 1;
+    }
+    ~Server() { delete[] data; }//2
+    int Total(CallBackObject& obj);
+private:
+    int  len;
+    int* data;
+};
+
+class CallBackObject
+{
+public:
+    virtual ~CallBackObject() {}
+    virtual int CallBackFunc(int val) = 0;//4
+};
+
+class ClientA :public CallBackObject
+{
+public:
+    virtual ~ClientA() {}
+    virtual int CallBackFunc(int val)
+    {
+        return val;
+    }
+    void RequestA(Server& srv)
+    {
+        cout << srv.Total(*this) << endl;//5
+    }
+};
+int Server::Total(CallBackObject& obj)
+{
+    int sum = 0;
+    for (int i = 0; i < len; ++i) {
+        sum += obj.CallBackFunc(data[i]);//3
+    }
+    return sum;
+}
+
+class ClientB :public CallBackObject
+{
+public:
+    virtual ~ClientB() {}
+    virtual int CallBackFunc(int val)
+    {
+        return val * val;//6
+    }
+    void RequestB(Server& srv) {
+        cout << "ƽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>=" << srv.Total(*this) << endl;//7
+    }
+};
+
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1	
+int main()
+{
+    Server   srv2(2), srv5(5);
+    ClientA  a;
+    a.RequestA(srv2);  //<2F><><EFBFBD><EFBFBD>3 
+    a.RequestA(srv5);  //<2F><><EFBFBD><EFBFBD>15
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2	 
+    Server   ssrv3(3);
+    ClientB  b;
+    b.RequestB(srv2);
+    b.RequestB(srv3);
+    return 0;
+}
+
+/*
+1)<29><><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ո<EFBFBD>1 - 5<><35><EFBFBD><EFBFBD>ȷ<EFBFBD>Ĵ<EFBFBD><C4B4>룬ʹ<EBA3AC><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ3<CEAA><33>15.
+2)<29><><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ո<EFBFBD>6 - 7<><37><EFBFBD><EFBFBD>ȷ<EFBFBD>Ĵ<EFBFBD><C4B4>룬ʹ<EBA3AC><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2<EFBFBD><32><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>
+ƽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> = 5
+ƽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> = 14
+3)<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5>ClientB<74>е<EFBFBD><D0B5><EFBFBD><EFBFBD>غ<EFBFBD><D8BA><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2<EFBFBD><32><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>
+1  2  <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> = 9
+1  2  3  <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> = 36
+
+*/