一 模板方法模式练习-试卷

UML图

测试代码

#include <iostream>
using namespace std;
 
class TestPaper
{
public:
    void question2(){
        cout << "试题2" << endl;
        cout << "答案:" << answer2() << endl;
    }
    void question1(){
        cout << "试题1" << endl;
        cout << "答案:" << answer1() << endl;
    }
    virtual string answer1() = 0;
    virtual string answer2() = 0;
};
 
class TestPaperA:public TestPaper
{
public:
    virtual string answer1(){
        return "a";
    }
    virtual string answer2(){
        return "a";
    }
};
 
class TestPaperB:public TestPaper
{
public:
    virtual string answer1(){
        return "b";
    }
    virtual string answer2(){
        return "b";
    }
};
 
int main(void)
{
    cout << "学生a的试卷:" << endl;
    TestPaper *a = new TestPaperA();
    a->question1();
    a->question2();
 
    cout << "学生b的试卷:" << endl;
    TestPaper *b = new TestPaperB();
    b->question1();
    b->question2();
    return 0;
}

二、模板方法模式

UML

代码

#include <iostream>
using namespace std;
 
class communication
{
public:
    void process(){
        read();
        write();
    }
    virtual int read() = 0;
    virtual int write() = 0;
};
class uart:public communication
{
public:
    int read(){
        cout << "读串口" << endl;
        return 0;
    }
    int write(){
        cout << "写串口" << endl;
        return 0;
    }
};
class tcp:public communication
{
public:
    int read(){
        cout << "读tcp" << endl;
        return 0;
    }
    int write(){
        cout << "写tcp" << endl;
        return 0;
    }
};
class udp:public communication
{
public:
    int read(){
        cout << "读udp" << endl;
        return 0;
    }
    int write(){
        cout << "写udp" << endl;
        return 0;
    }
};
 
 
int main(void)
{
    communication *u = new uart();
    communication *t = new tcp();
    communication *d = new udp();
    u->process();
    t->process();
    d->process();
    return 0;
}

运行结果：

读串口
写串口
读tcp
写tcp
读udp
写udp