程序運行截圖如下：

解決此問題的關鍵是：

父類用一個虛函數返回一個值。

每個子類通過對這個值設置不同的數據。

從而判斷不同的類，或不同的對象；

代碼如下：

#include <iostream> #include <vector> using namespace std;#define ImpleType 0 #define ApiType 1class Base{ public:virtual int getClassType()const = 0; protected:Base(){} };class MyImple :public Base{ public:int m_type;MyImple(const int type){m_type = type;}int getClassType()const{return m_type;} };class MyApi :public Base{ public:int m_type;MyApi(const int type){m_type = type;}int getClassType()const{return m_type;} };class MyFactory{ public:static Base* createData(int type){Base *base = nullptr;if (type == ImpleType){base = new MyImple(type);}else if (type == ApiType){base = new MyApi(type);}else{}return base;} };void main(){Base *myData1 = MyFactory::createData(ImpleType);Base *myData2 = MyFactory::createData(ApiType);Base *myData3 = MyFactory::createData(ImpleType);Base *myData4 = MyFactory::createData(ApiType);Base *myData5 = MyFactory::createData(ImpleType);vector<Base*> myVec;myVec.push_back(myData1);myVec.push_back(myData2);myVec.push_back(myData3);myVec.push_back(myData4);myVec.push_back(myData5);for (int i = 0; i < myVec.size(); i++){if (myVec[i]->getClassType() == ImpleType){cout << "第" << i << "個為：MyImple類\n";}elsecout << "第" << i << "個為：MyApi類\n";delete myVec[i];}system("pause"); }
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