#include <iostream>
#include <string>
using namespace std;
class ExportFileApi {
public:
virtual bool exportData(string data) = 0;
protected:
ExportFileApi(){}
};
//具体化的子类
class ExportTxtFile : public ExportFileApi {
public:
bool exportData(string data) {
cout << "正在导出数据" << data << "到csv文件" << endl;
return true;
}
};
//生成数据到数据库
class ExportDB :public ExportFileApi {
public:
bool exportData(string data) {
cout << "正在导出数据" << data << "到数据库" << endl;
return true;
}
};
//实现一个ExportOperate,这个叫导出数据的业务功能对象
class ExportOperate {//他也是接口
public:
bool exportData(string data) {
ExportFileApi* pApi = factoryMethod();
return pApi->exportData(data);
}
protected:
virtual ExportFileApi* factoryMethod() = 0;
};
//具体的实现对象，完成导出工作
class ExportTxtFileOperate : public ExportOperate {
protected:
ExportFileApi* factoryMethod() {
return new ExportTxtFile();
}
};
class ExportDBOperate :public ExportOperate {
protected:
ExportFileApi* factoryMethod() {
return new ExportDB;
}
};
int main() {
ExportOperate* pOperate = new ExportTxtFileOperate();
pOperate->exportData("Haha");
system("pause");
return 0;
}
