多重继承（P197）

#include<iostream>
using namespace std;

class BaseClass1
{
public:
int v1,v2;
BaseClass1();
BaseClass1(int,int);
~BaseClass1();
};
BaseClass1::BaseClass1()
{
cout<<"BaseClass1 无参构造函数"<<endl;
}

BaseClass1::BaseClass1(int m,int n):v1(m),v2(n)
{
cout<<"BaseClass1 带2个参构造函数"<<endl;
}

BaseClass1::~BaseClass1()
{
cout<<"BaseClass1 析构函数"<<endl;
}

class BaseClass2
{
public:
int v1,v4;
BaseClass2();
BaseClass2(int,int);
~BaseClass2();
};
BaseClass2::BaseClass2()
{
cout<<"BaseClass2 无参构造函数"<<endl;
}

BaseClass2::BaseClass2(int m,int n):v1(m),v4(n)
{
cout<<"BaseClass2 带2个参构造函数"<<endl;
}

BaseClass2::~BaseClass2()
{
cout<<"BaseClass2 析构函数"<<endl;
}

class DerivedClass:public BaseClass1,public BaseClass2
{
public:
int v3;
public:
DerivedClass();
DerivedClass(int);
DerivedClass(int,int,int,int);
~DerivedClass();
};
DerivedClass::DerivedClass()
{
cout<<"DerivedClass 无参构造函数"<<endl;
}

DerivedClass::DerivedClass(int k):v3(k)
{
cout<<"DerivedClass 带1个参构造函数"<<endl;
}

DerivedClass::DerivedClass(int m,int n,int k,int t):BaseClass1(m,n),BaseClass2(m,t),v3(k)
{
cout<<"DerivedClass 带4个参构造函数"<<endl;
}

DerivedClass::~DerivedClass()
{
cout<<"DerivedClass 析构函数"<<endl;
}

int main()
{
cout<<"带参数对象的创建"<<endl;
DerivedClass derivedCla1(1000,2000,3000,4000);
cout<<"v1="<<derivedCla1.BaseClass1::v1<<endl;
cout<<"v2="<<derivedCla1.v2<<endl;
cout<<"v1="<<derivedCla1.BaseClass2::v1<<endl;
cout<<"v4="<<derivedCla1.v4<<endl;
cout<<"v3="<<derivedCla1.v3<<endl;
return 0;
}