#include <iostream>
using namespace std;
class Road
{
public:
Road(){}
virtual ~Road(){}
void operation()
{
start();
step1();
step2();
step3();
end();
}
void start(){cout<<"start"<<endl;}
void end(){cout<<"end"<<endl;}
virtual void step1()=0;
virtual void step2()=0;
virtual void step3()=0;
};
class way1 : public Road
{
public:
way1(){}
virtual ~way1(){}
void step1(){cout<<"way1_step1"<<endl;}
void step2(){cout<<"way1_step2"<<endl;}
void step3(){cout<<"way1_step3"<<endl;}
};
class way2 : public Road
{
public:
way2(){}
virtual ~way2(){}
void step1(){cout<<"way2_step1"<<endl;}
void step2(){cout<<"way2_step2"<<endl;}
void step3(){cout<<"way2_step3"<<endl;}
};
int main()
{
Road *pr1=new way1;
Road *pr2=new way2;
pr1->operation();
pr2->operation();
delete pr2;
delete pr1;
system("pause");
return 0;
}
原文链接: https://www.cnblogs.com/tiandsp/archive/2012/06/30/2571341.html
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