【C++练习】设计虚基类base，包含姓名、年龄及相关的成员函数

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/*
设计虚基类base，包含姓名、年龄及相关的成员函数。
由他派生领导类leader，新增职务、部门及相关成员函数。
在由base派生工程师类engineer，新增职称、专业及相关成员函数。
最后由leader和engineer类共同派生出主任工程师chairman。
请编程实现这几个类及他们之间的派生关系，并设计测试代码进行测试。
*/
#include <iostream>
#include <stdlib.h>
#include <string>
using namespace std;
class base
{
protected:
string name;
int age;
public:
base(string name1, int age1);
void show();
};
base::base(string name1, int age1)
{
name = name1;
age = age1;
}
void base::show()
{
cout << "姓名：" << name << endl;
cout << "年龄：" << age << endl;
}
class leader :virtual public base //领导类
{
protected:
string post;//职务
string dept;//部门
public:
leader(string name1, int age1, string post1, string dept1);
void show();
};
leader::leader(string name1, int age1, string post1, string dept1) :base(name1, age1)
{
post = post1;
dept = dept1;
}
void leader::show()
{
cout << "领导类：" << endl;
base::show();
cout << "职务：" << post << endl;
cout << "部门：" << dept << endl;
}
class engineer :virtual public base //工程师类
{
protected:
string title;//职称
string major;//专业
public:
engineer(string name1, int age1, string title1, string major1);
void show();
};
engineer::engineer(string name1, int age1, string title1, string major1) :base(name1, age1)
{
title=title1;
major = major1;
}
void engineer::show()
{
cout << "工程师类：" << endl;
base::show();
cout << "职称：" << title << endl;
cout << "专业：" << major << endl;
}
class chairman :public leader,public engineer//主任工程师类
{
public:
chairman(string name1, int age1, string post1, string dept1, string title1, string major1);
void show();
};
chairman::chairman(string name1, int age1, string post1, string dept1, string title1, string major1) :base(name1, age1), leader(name1, age1, post1, dept1), engineer(name1, age1, title1, major1)
{
}
void chairman::show()
{
cout << "主任工程师类：" << endl;
base::show();
cout << "职务：" << post << endl;
cout << "部门：" << dept << endl;
cout << "职称：" << title << endl;
cout << "专业：" << major << endl;
}
int main()
{
leader a("张三", 30, "部门经理", "管理部");
engineer b("李四", 25, "初级工程师", "土木工程");
chairman c("王五",45, "总经理","产品部", "高级工程师", "建筑设计");
a.show();
cout << endl;
b.show();
cout << endl;
c.show();
system("PAUSE");
return 0;
}