#include <stdio.h>
#include <iostream>
using namespace std;
class TestPaper {
public :
TestPaper(){};
~TestPaper(){};
void TestQuestion1(){cout<<"question1"<<endl; cout<<Answer1()<<endl;};
void TestQuestion2(){cout<<"question2"<<endl;cout<<Answer2()<<endl;};
void TestQuestion3(){cout<<"question3"<<endl;cout<<Answer3()<<endl;};
virtual string Answer1(){return "";};
virtual string Answer2(){return "";};
virtual string Answer3(){return "";};
};
class TestPaperA:public TestPaper{
public:
string Answer1() {return "a";};
string Answer2() {return "b";};
string Answer3() {return "c";};
};
class TestPaperB:public TestPaper{
public:
string Answer1() {return "d";};
string Answer2() {return "e";};
string Answer3() {return "f";};
};
void testLesson7(){
TestPaper * studentA = new TestPaperA();
studentA->TestQuestion1();
studentA->TestQuestion2();
studentA->TestQuestion3();
TestPaper * studentB = new TestPaperB();
studentB->TestQuestion1();
studentB->TestQuestion2();
studentB->TestQuestion3();
}
重要概念
概念： 定义一个算法的基本骨架，只是微小部分不得实现推迟到子类实现，用的是继承的特性，但思想是不一样的，继承是模版模式的工具。
