carysu@126.com

/**//*
多态的实现。
*/
#include <iostream>
#include <string>

using namespace std;


class cbuilding
{

    string name;
    //char * name;
public:
    void set(string strName);
    void display()
    {
        cout<<"建筑是"<< name<<endl;
    }
};

void cbuilding::set(string str)
{
    name = str;
}

class bridge:public cbuilding
{

    float bridgeLength;
public:
    void setlength(float length)
    {
    bridgeLength = length;
    }
    void display()
    {
        cbuilding::display();
        cout<<"桥的长度是"<<bridgeLength<<endl;
    }
};
void main()
{
    bridge b;
    //string s1="zhongguo";
    b.set("杭州钱塘江三桥");
    b.setlength(200.003);
    b.display();
    return;
}

/*
多态的实现。
*/
#include <iostream>
#include <string>

using namespace std;

class cbuilding
{

 string name;
 //char * name;
public:
 void set(string strName);
 void display()
 {
  cout<<"建筑是"<< name<<endl;
 }
};

void cbuilding::set(string str)
{
 name = str;
}

class bridge:public cbuilding
{

 float bridgeLength;
public:
 void setlength(float length)
 {
 bridgeLength = length;
 }
 void display()
 {
  cbuilding::display();
  cout<<"桥的长度是"<<bridgeLength<<endl;
 }
};
void main()
{
 bridge b;
 //string s1="zhongguo";
 b.set("杭州钱塘江三桥");
 b.setlength(200.003);
 b.display();
 return;
}